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		rv10rob(at)gmail.com Guest
 
 
 
 
 
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				 Posted: Mon Dec 28, 2020 8:59 pm    Post subject: When to service the propeller? | 
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				My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new.   To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours total time) and the fact that it's always hangared, that seemed excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!
 
 -Rob
 
 -- 
 Rob Kochman
 RV-10 Flying since March 2011
  Kirkland, WA
 
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		philperry9
 
 
  Joined: 23 Nov 2011 Posts: 381
 
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				 Posted: Mon Dec 28, 2020 9:14 pm    Post subject: When to service the propeller? | 
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				Since it’s experimental, you can send it to the prop shop to be disassembled and inspected.   If there is little wear, you can have them reassemble with new seals and grease.  “Pack and Seal”
 
 If it’s worn beyond limits, an overhaul is in the works.   But a pack and seal is a middle of the road option for low time props. 
 
 Phil
 
 Sent from my iPhone
 
  	  | Quote: | 	 		   On Dec 28, 2020, at 10:03 PM, Rob Kochman <rv10rob(at)gmail.com> wrote:
  
  
  My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours total time) and the fact that it's always hangared, that seemed excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!
  
  -Rob
  
  -- 
  Rob Kochman
  RV-10 Flying since March 2011
  Kirkland, WA
 
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		philperry9
 
 
  Joined: 23 Nov 2011 Posts: 381
 
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				 Posted: Mon Dec 28, 2020 9:23 pm    Post subject: When to service the propeller? | 
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				I should have added this to my previous message.  Some of those seals have a limited shelf life (rubber or synthetics).  So they need to be replaced on a schedule once they begin to reach the end of their useful life. 
 
 Phil
 
 Sent from my iPhone
 
  	  | Quote: | 	 		   On Dec 28, 2020, at 10:13 PM, Phil Perry <philperry9(at)gmail.com> wrote:
  
  Since it’s experimental, you can send it to the prop shop to be disassembled and inspected.   If there is little wear, you can have them reassemble with new seals and grease.  “Pack and Seal”
  
  If it’s worn beyond limits, an overhaul is in the works.   But a pack and seal is a middle of the road option for low time props. 
  
  Phil
  
  Sent from my iPhone
  
 > On Dec 28, 2020, at 10:03 PM, Rob Kochman <rv10rob(at)gmail.com> wrote:
 > 
 > 
 > My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours total time) and the fact that it's always hangared, that seemed excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!
 > 
 > -Rob
 > 
 > -- 
 > Rob Kochman
 > RV-10 Flying since March 2011
 > Kirkland, WA
 
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		Tim Olson
 
 
  Joined: 25 Jan 2007 Posts: 2882
 
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				 Posted: Mon Dec 28, 2020 9:25 pm    Post subject: When to service the propeller? | 
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				Rob,
 You're not alone.  I am overdue on my Hartzell also.  Nearly 15 years.
 But, I did have mine re-sealed a few years ago.  I am sure that your
 prop will still be functioning fine a while from now, but, I'd say
 plan on a 10 year at least.
 
 I've had mine off a few times for various reasons.  Inside the
 crank cavity into the prop hub, you've almost certainly got a lot of
 gray paste build-up that happens over time.   I've cleaned mine
 out whenever the prop has been off.  This winter I plan to get
 the prop overhauled, and it will be interesting to hear how it
 goes.  I agree that 6 years and 550 hours would seem pretty short.
 To me it's like how Lycoming recommends an engine rebuild in 12 years
 or 2000 hours.  But, there still is a point where an overhaul is due
 and I think I'm there. I intended to do it when I replaced the engine
 this summer, but this wasn't a good year for it $$$.
 
 I have heard overhauls run $2500, but the place near me charges
 $3000.  Would be nice to hear what kinds of quotes other people have
 gotten, and where they recommend.
 Tim
 On 12/28/20 10:58 PM, Rob Kochman wrote:
  	  | Quote: | 	 		   My RV-10 has the standard Hartzell 2-blade constant speed prop, 
  purchased new. To this point, I've done nothing but lubricate and 
  inspect it annually, as well as file out nicks. I know Hartzell says 6 
  years for an overhaul, but given limited use (550 hours total time) and 
  the fact that it's always hangared, that seemed excessively 
  conservative. It's also not leaking any oil (still looks like new inside 
  the spinner). However, I'm now approaching 10 years, so curious to hear 
  what people recommend. Thanks!
  
  -Rob
  
  -- 
  Rob Kochman
  RV-10 Flying since March 2011
  Kirkland, WA
  | 	 
 
 
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		Lenny Iszak
 
  
  Joined: 23 Mar 2008 Posts: 270
 
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				 Posted: Mon Dec 28, 2020 9:51 pm    Post subject: When to service the propeller? | 
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				I had mine (2009 prop with 700 hrs) overhauled a few months ago at Palm Beach Aircraft Propeller, for $2845 + tax.
 The seals in it where in pretty bad shape, it was covering my windshield with grease after every flight. A pretty good sign that it needed some TLC.
 
 Btw, Hartzell recommends a new grease now, so if you do get an overhaul, grab a couple of tubes from the prop shop, as it’s otherwise unobtanium from the popular aircraft parts stores.
 
 Lenny
 
  	  | Quote: | 	 		   On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:
  
  
  
  Rob,
  You're not alone.  I am overdue on my Hartzell also.  Nearly 15 years.
  But, I did have mine re-sealed a few years ago.  I am sure that your
  prop will still be functioning fine a while from now, but, I'd say
  plan on a 10 year at least.
  
  I've had mine off a few times for various reasons.  Inside the
  crank cavity into the prop hub, you've almost certainly got a lot of
  gray paste build-up that happens over time.   I've cleaned mine
  out whenever the prop has been off.  This winter I plan to get
  the prop overhauled, and it will be interesting to hear how it
  goes.  I agree that 6 years and 550 hours would seem pretty short.
  To me it's like how Lycoming recommends an engine rebuild in 12 years
  or 2000 hours.  But, there still is a point where an overhaul is due
  and I think I'm there. I intended to do it when I replaced the engine
  this summer, but this wasn't a good year for it $$$.
  
  I have heard overhauls run $2500, but the place near me charges
  $3000.  Would be nice to hear what kinds of quotes other people have
  gotten, and where they recommend.
  Tim
  
  
  On 12/28/20 10:58 PM, Rob Kochman wrote:
 > My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours total time) and the fact that it's always hangared, that seemed excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!
 > -Rob
 > -- 
 > Rob Kochman
 > RV-10 Flying since March 2011
 > Kirkland, WA
  
  
  
 
 | 	 
 
 
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 _________________ Lenny Iszak
 
Palm City, FL
 
2014 RV-10, N311LZ - 500 hrs | 
			 
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		Kellym
 
 
  Joined: 10 Jan 2006 Posts: 1706 Location: Sun Lakes AZ
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				 Posted: Tue Dec 29, 2020 4:12 am    Post subject: When to service the propeller? | 
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				The main issue with props (assuming no bad nicks, etc.) is the life of 
 the seals for the blades. It isn't just that they may start seeping oil. 
 The more serious issue is their allowing moisture under the seal at the 
 hub grooves.
 You really don't want to have an overhaul done unless the blade has been 
 filed enough to need reprofiling. An overhaul absolutely requires 
 removal of a thin layer of aluminum, so that a prop's life can only take 
 3, maybe 4 overhauls. Even on certified planes an inspect and reseal is 
 perfectly legal.
 I too believe than hangaring greatly increases prop life, except in 
 corrosive/humid environments.
 
 On 12/28/2020 10:50 PM, Lenny Iszak wrote:
  	  | Quote: | 	 		   
  
  I had mine (2009 prop with 700 hrs) overhauled a few months ago at Palm Beach Aircraft Propeller, for $2845 + tax.
  The seals in it where in pretty bad shape, it was covering my windshield with grease after every flight. A pretty good sign that it needed some TLC.
  
  Btw, Hartzell recommends a new grease now, so if you do get an overhaul, grab a couple of tubes from the prop shop, as it’s otherwise unobtanium from the popular aircraft parts stores.
  
  Lenny
  
 > On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:
 >
 > 
 >
 > Rob,
 > You're not alone.  I am overdue on my Hartzell also.  Nearly 15 years.
 > But, I did have mine re-sealed a few years ago.  I am sure that your
 > prop will still be functioning fine a while from now, but, I'd say
 > plan on a 10 year at least.
 >
 > I've had mine off a few times for various reasons.  Inside the
 > crank cavity into the prop hub, you've almost certainly got a lot of
 > gray paste build-up that happens over time.   I've cleaned mine
 > out whenever the prop has been off.  This winter I plan to get
 > the prop overhauled, and it will be interesting to hear how it
 > goes.  I agree that 6 years and 550 hours would seem pretty short.
 > To me it's like how Lycoming recommends an engine rebuild in 12 years
 > or 2000 hours.  But, there still is a point where an overhaul is due
 > and I think I'm there. I intended to do it when I replaced the engine
 > this summer, but this wasn't a good year for it $$$.
 >
 > I have heard overhauls run $2500, but the place near me charges
 > $3000.  Would be nice to hear what kinds of quotes other people have
 > gotten, and where they recommend.
 > Tim
 > On 12/28/20 10:58 PM, Rob Kochman wrote:
 >> My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours total time) and the fact that it's always hangared, that seemed excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!
 >> -Rob
 >> -- 
 >> Rob Kochman
 >> RV-10 Flying since March 2011
 >> Kirkland, WA
 >
  
  
  
  
  
  | 	 
 
 
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 _________________ Kelly McMullen
 
A&P/IA, EAA Tech Counselor # 5286
 
KCHD | 
			 
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		Kellym
 
 
  Joined: 10 Jan 2006 Posts: 1706 Location: Sun Lakes AZ
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				 Posted: Tue Dec 29, 2020 5:28 am    Post subject: When to service the propeller? | 
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				As for the grease in the prop, you should use whatever the prop shop 
 installed when it was last reassembled, and there should be a sticker 
 identifying that grease. Most until recent years used Aeroshell 6.
 
 On 12/28/2020 10:50 PM, Lenny Iszak wrote:
  	  | Quote: | 	 		   
  
  I had mine (2009 prop with 700 hrs) overhauled a few months ago at Palm Beach Aircraft Propeller, for $2845 + tax.
  The seals in it where in pretty bad shape, it was covering my windshield with grease after every flight. A pretty good sign that it needed some TLC.
  
  Btw, Hartzell recommends a new grease now, so if you do get an overhaul, grab a couple of tubes from the prop shop, as it’s otherwise unobtanium from the popular aircraft parts stores.
  
  Lenny
  
 > On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:
 >
 > 
 >
 > Rob,
 > You're not alone.  I am overdue on my Hartzell also.  Nearly 15 years.
 > But, I did have mine re-sealed a few years ago.  I am sure that your
 > prop will still be functioning fine a while from now, but, I'd say
 > plan on a 10 year at least.
 >
 > I've had mine off a few times for various reasons.  Inside the
 > crank cavity into the prop hub, you've almost certainly got a lot of
 > gray paste build-up that happens over time.   I've cleaned mine
 > out whenever the prop has been off.  This winter I plan to get
 > the prop overhauled, and it will be interesting to hear how it
 > goes.  I agree that 6 years and 550 hours would seem pretty short.
 > To me it's like how Lycoming recommends an engine rebuild in 12 years
 > or 2000 hours.  But, there still is a point where an overhaul is due
 > and I think I'm there. I intended to do it when I replaced the engine
 > this summer, but this wasn't a good year for it $$$.
 >
 > I have heard overhauls run $2500, but the place near me charges
 > $3000.  Would be nice to hear what kinds of quotes other people have
 > gotten, and where they recommend.
 > Tim
 > On 12/28/20 10:58 PM, Rob Kochman wrote:
 >> My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours total time) and the fact that it's always hangared, that seemed excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!
 >> -Rob
 >> -- 
 >> Rob Kochman
 >> RV-10 Flying since March 2011
 >> Kirkland, WA
 >
  
  
  
  
  
  | 	 
 
 
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 _________________ Kelly McMullen
 
A&P/IA, EAA Tech Counselor # 5286
 
KCHD | 
			 
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		Tim Olson
 
 
  Joined: 25 Jan 2007 Posts: 2882
 
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				 Posted: Tue Dec 29, 2020 7:26 am    Post subject: When to service the propeller? | 
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				On that note,I read recently that hartzell started using a new grease not long ago. So if you have a new prop or get an overhaul or reseal, make sure to verify the type of grease because you may need to order that special type of grease from there on.
 Tim
 
  	  | Quote: | 	 		   On Dec 29, 2020, at 7:45 AM, Kelly McMullen <kellym(at)aviating.com> wrote:
  
  
  
  As for the grease in the prop, you should use whatever the prop shop installed when it was last reassembled, and there should be a sticker identifying that grease. Most until recent years used Aeroshell 6.
  
 > On 12/28/2020 10:50 PM, Lenny Iszak wrote:
 > 
 > I had mine (2009 prop with 700 hrs) overhauled a few months ago at Palm Beach Aircraft Propeller, for $2845 + tax.
 > The seals in it where in pretty bad shape, it was covering my windshield with grease after every flight. A pretty good sign that it needed some TLC.
 > Btw, Hartzell recommends a new grease now, so if you do get an overhaul, grab a couple of tubes from the prop shop, as it’s otherwise unobtanium from the popular aircraft parts stores.
 > Lenny
 >>> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:
 >> 
 >> 
 >> 
 >> Rob,
 >> You're not alone.  I am overdue on my Hartzell also.  Nearly 15 years.
 >> But, I did have mine re-sealed a few years ago.  I am sure that your
 >> prop will still be functioning fine a while from now, but, I'd say
 >> plan on a 10 year at least.
 >> 
 >> I've had mine off a few times for various reasons.  Inside the
 >> crank cavity into the prop hub, you've almost certainly got a lot of
 >> gray paste build-up that happens over time.   I've cleaned mine
 >> out whenever the prop has been off.  This winter I plan to get
 >> the prop overhauled, and it will be interesting to hear how it
 >> goes.  I agree that 6 years and 550 hours would seem pretty short.
 >> To me it's like how Lycoming recommends an engine rebuild in 12 years
 >> or 2000 hours.  But, there still is a point where an overhaul is due
 >> and I think I'm there. I intended to do it when I replaced the engine
 >> this summer, but this wasn't a good year for it $$$.
 >> 
 >> I have heard overhauls run $2500, but the place near me charges
 >> $3000.  Would be nice to hear what kinds of quotes other people have
 >> gotten, and where they recommend.
 >> Tim
 >> 
 >> 
 >> On 12/28/20 10:58 PM, Rob Kochman wrote:
 >>> My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours total time) and the fact that it's always hangared, that seemed excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!
 >>> -Rob
 >>> -- 
 >>> Rob Kochman
 >>> RV-10 Flying since March 2011
 >>> Kirkland, WA
 >> 
 >> 
 >> 
  
  
  
 
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		rleffler
 
  
  Joined: 05 Nov 2006 Posts: 680
 
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				 Posted: Tue Dec 29, 2020 7:53 am    Post subject: When to service the propeller? | 
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				I was surprised with that as well when I had my prop serviced recently. The shop included a tube of the new grease. I have yet to find a source for the new grease other than a prop shop. 
  
  
  Anyone have a solution for stopping the grease from breaking down and leaking from the gun during hot weather? With just six pumps per condition inspection, it would be nice to use a tube on more than one inspection. 
  
  
  
  Get Outlook for iOS
  
   From: owner-rv10-list-server(at)matronics.com <owner-rv10-list-server(at)matronics.com> on behalf of Tim Olson <Tim(at)MyRV10.com>
  Sent: Tuesday, December 29, 2020 10:26:10 AM
  To: rv10-list(at)matronics.com <rv10-list(at)matronics.com>
  Subject: Re: RV10-List: When to service the propeller? 
  
   --> RV10-List message posted by: Tim Olson <Tim(at)myrv10.com>
  
  On that note,I read recently that hartzell started using a new grease not long ago. So if you have a new prop or get an overhaul or reseal, make sure to verify the type of grease because you may need to order that special type of grease from there on.
  Tim
  
  > On Dec 29, 2020, at 7:45 AM, Kelly McMullen <kellym(at)aviating.com> wrote:
  > 
  > --> RV10-List message posted by: Kelly McMullen <kellym(at)aviating.com>
  > 
  > As for the grease in the prop, you should use whatever the prop shop installed when it was last reassembled, and there should be a sticker identifying that grease. Most until recent years used Aeroshell 6.
  > 
  >> On 12/28/2020 10:50 PM, Lenny Iszak wrote:
  >> --> RV10-List message posted by: Lenny Iszak <lenard(at)rapiddecision.com>
  >> I had mine (2009 prop with 700 hrs) overhauled a few months ago at Palm Beach Aircraft Propeller, for $2845 + tax.
  >> The seals in it where in pretty bad shape, it was covering my windshield with grease after every flight. A pretty good sign that it needed some TLC.
  >> Btw, Hartzell recommends a new grease now, so if you do get an overhaul, grab a couple of tubes from the prop shop, as it’s otherwise unobtanium from the popular aircraft parts stores.
  >> Lenny
  >>>> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:
  >>> 
  >>> --> RV10-List message posted by: Tim Olson <Tim(at)MyRV10.com>
  >>> 
  >>> Rob,
  >>> You're not alone. I am overdue on my Hartzell also. Nearly 15 years.
  >>> But, I did have mine re-sealed a few years ago. I am sure that your
  >>> prop will still be functioning fine a while from now, but, I'd say
  >>> plan on a 10 year at least.
  >>> 
  >>> I've had mine off a few times for various reasons. Inside the
  >>> crank cavity into the prop hub, you've almost certainly got a lot of
  >>> gray paste build-up that happens over time. I've cleaned mine
  >>> out whenever the prop has been off. This winter I plan to get
  >>> the prop overhauled, and it will be interesting to hear how it
  >>> goes. I agree that 6 years and 550 hours would seem pretty short.
  >>> To me it's like how Lycoming recommends an engine rebuild in 12 years
  >>> or 2000 hours. But, there still is a point where an overhaul is due
  >>> and I think I'm there. I intended to do it when I replaced the engine
  >>> this summer, but this wasn't a good year for it $$$.
  >>> 
  >>> I have heard overhauls run $2500, but the place near me charges
  >>> $3000. Would be nice to hear what kinds of quotes other people have
  >>> gotten, and where they recommend.
  >>> Tim
  >>> 
  >>> 
  >>> On 12/28/20 10:58 PM, Rob Kochman wrote:
  >>>> My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours  total time) and the fact that it's always hangared, that seemed excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!
  >>>> -Rob
  >>>> -- 
  >>>> Rob Kochman
  >>>> RV-10 Flying since March 2011
  >>>> Kirkland, WA
  >>> 
  >>> 
  >>> 
  > 
  > 
  >
 
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 _________________ Bob Leffler
 
N410BL - Phase I
 
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		Tim Olson
 
 
  Joined: 25 Jan 2007 Posts: 2882
 
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				 Posted: Tue Dec 29, 2020 8:15 am    Post subject: When to service the propeller? | 
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				I had that happen to me once where the grease broke down and the     thin more liquid
      portion separated out and leaked out.  Made me real irritated.
      I *think* it may be due to storing the grease in the gun under     pressure, with that
      spring pressing against the grease.  You don't see it happen with     fresh tubes
      sitting on shelves, as far as I've seen.  So I pull the springs back     all the way when
      I'm not using the gun.  It may be even better to just remove the     tube, but I hate
      it when the gun doesn't want to prime again.
      
      Does anyone know if pneumatic grease guns don't use springs, and     release pressure
      completely when not being used?  Or maybe the new lithium electric     ones?  I would
      be willing to spend $150 on a grease gun that would fully release     pressure on my
      grease tube, and always prime well for me.
      
      
      
      On 12/29/2020 9:53 AM, Bob Leffler       wrote:
      
       	  | Quote: | 	 		                                    I was surprised with that as well             when I had my prop serviced recently.  The shop included a             tube of the new grease.   I have yet to find a source for             the new grease other than a prop shop.           
            
            
            Anyone have a solution for             stopping the grease from breaking down and leaking from the             gun during hot weather?   With just six pumps per condition             inspection, it would be nice to use a tube on more than one             inspection.             
          
          
          
          Get Outlook             for iOS
        
               From:           owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com)           <owner-rv10-list-server(at)matronics.com> (owner-rv10-list-server(at)matronics.com) on behalf of Tim           Olson <Tim(at)MyRV10.com> (Tim(at)MyRV10.com)
            Sent: Tuesday, December 29, 2020 10:26:10 AM
            To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)           <rv10-list(at)matronics.com> (rv10-list(at)matronics.com)
            Subject: Re: When to service the propeller?          
        
                     --> RV10-List message posted by:               Tim Olson <Tim(at)myrv10.com> (Tim(at)myrv10.com)
                
                On that note,I read recently that hartzell started using a               new grease not long ago. So if you have a new prop or get               an overhaul or reseal, make sure to verify the type of               grease because you may need to order that special type of               grease from there on.
                Tim
                
                > On Dec 29, 2020, at 7:45 AM, Kelly McMullen               <kellym(at)aviating.com> (kellym(at)aviating.com) wrote:
                > 
                > --> RV10-List message posted by: Kelly McMullen               <kellym(at)aviating.com> (kellym(at)aviating.com)
                > 
                > As for the grease in the prop, you should use               whatever the prop shop installed when it was last               reassembled, and there should be a sticker identifying               that grease. Most until recent years used Aeroshell 6.
                > 
                >> On 12/28/2020 10:50 PM, Lenny Iszak wrote:
                >> --> RV10-List message posted by: Lenny Iszak               <lenard(at)rapiddecision.com> (lenard(at)rapiddecision.com)
                >> I had mine (2009 prop with 700 hrs) overhauled a               few months ago at Palm Beach Aircraft Propeller, for $2845               + tax.
                >> The seals in it where in pretty bad shape, it was               covering my windshield with grease after every flight. A               pretty good sign that it needed some TLC.
                >> Btw, Hartzell recommends a new grease now, so if               you do get an overhaul, grab a couple of tubes from the               prop shop, as it’s otherwise unobtanium from the popular               aircraft parts stores.
                >> Lenny
                >>>> On Dec 29, 2020, at 12:24 AM, Tim Olson               <Tim(at)MyRV10.com> (Tim(at)MyRV10.com) wrote:
                >>> 
                >>> --> RV10-List message posted by: Tim Olson               <Tim(at)MyRV10.com> (Tim(at)MyRV10.com)
                >>> 
                >>> Rob,
                >>> You're not alone.  I am overdue on my               Hartzell also.  Nearly 15 years.
                >>> But, I did have mine re-sealed a few years               ago.  I am sure that your
                >>> prop will still be functioning fine a while               from now, but, I'd say
                >>> plan on a 10 year at least.
                >>> 
                >>> I've had mine off a few times for various               reasons.  Inside the
                >>> crank cavity into the prop hub, you've almost               certainly got a lot of
                >>> gray paste build-up that happens over time.                 I've cleaned mine
                >>> out whenever the prop has been off.  This               winter I plan to get
                >>> the prop overhauled, and it will be               interesting to hear how it
                >>> goes.  I agree that 6 years and 550 hours               would seem pretty short.
                >>> To me it's like how Lycoming recommends an               engine rebuild in 12 years
                >>> or 2000 hours.  But, there still is a point               where an overhaul is due
                >>> and I think I'm there. I intended to do it               when I replaced the engine
                >>> this summer, but this wasn't a good year for               it $$$.
                >>> 
                >>> I have heard overhauls run $2500, but the               place near me charges
                >>> $3000.  Would be nice to hear what kinds of               quotes other people have
                >>> gotten, and where they recommend.
                >>> Tim
                >>> 
                >>> 
                >>> On 12/28/20 10:58 PM, Rob Kochman wrote:
                >>>> My RV-10 has the standard Hartzell               2-blade constant speed prop, purchased new. To this point,               I've done nothing but lubricate and inspect it annually,               as well as file out nicks. I know Hartzell says 6 years               for an overhaul, but given limited use (550 hours total               time) and the fact that it's always hangared, that seemed               excessively conservative. It's also not leaking any oil               (still looks like new inside the spinner). However, I'm               now approaching 10 years, so curious to hear what people               recommend. Thanks!
                >>>> -Rob
                >>>> -- 
                >>>> Rob Kochman
                >>>> RV-10 Flying since March 2011
                >>>> Kirkland, WA
                >>> 
                >>> 
                >>> 
                > 
                > 
                > 
                
                FAQ,
                  href="http://www.matronics.com/Navigator?RV10-List"                 moz-do-not-send="true">http://www.matronics.com/Navigator?RV10-List
                  moz-do-not-send="true">http://forums.matronics.com
                  moz-do-not-send="true">http://wiki.matronics.com
                  href="http://www.matronics.com/contribution"                 moz-do-not-send="true">http://www.matronics.com/contribution
                
                
                
              
            
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		philperry9
 
 
  Joined: 23 Nov 2011 Posts: 381
 
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				 Posted: Tue Dec 29, 2020 11:58 am    Post subject: When to service the propeller? | 
				     | 
			 
			
				
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				In Texas, we just keep the grease in the hangar fridge.  🤣.  Next to the cold beer. 
 
 
 Sent from my iPhone
 
 [quote] On Dec 29, 2020, at 9:20 AM, Tim Olson <Tim(at)myrv10.com> wrote:
  
   I had that happen to me once where the grease broke down and the thin more liquid
  portion separated out and leaked out.  Made me real irritated.
  I *think* it may be due to storing the grease in the gun under pressure, with that
  spring pressing against the grease.  You don't see it happen with fresh tubes
  sitting on shelves, as far as I've seen.  So I pull the springs back all the way when
  I'm not using the gun.  It may be even better to just remove the tube, but I hate
  it when the gun doesn't want to prime again.
  
  Does anyone know if pneumatic grease guns don't use springs, and release pressure
  completely when not being used?  Or maybe the new lithium electric ones?  I would
  be willing to spend $150 on a grease gun that would fully release pressure on my
  grease tube, and always prime well for me.
  
  
  
  On 12/29/2020 9:53 AM, Bob Leffler wrote:
 > I was surprised with that as well when I had my prop serviced recently.  The shop included a tube of the new grease.   I have yet to find a source for the new grease other than a prop shop.
 > 
 > Anyone have a solution for stopping the grease from breaking down and leaking from the gun during hot weather?   With just six pumps per condition inspection, it would be nice to use a tube on more than one inspection.
 > 
 > Get Outlook for iOS
 > From: owner-rv10-list-server(at)matronics.com <owner-rv10-list-server(at)matronics.com> on behalf of Tim Olson <Tim(at)MyRV10.com>
 > Sent: Tuesday, December 29, 2020 10:26:10 AM
 > To: rv10-list(at)matronics.com <rv10-list(at)matronics.com>
 > Subject: Re: When to service the propeller?
 >  
 > 
 > 
 > On that note,I read recently that hartzell started using a new grease not long ago. So if you have a new prop or get an overhaul or reseal, make sure to verify the type of grease because you may need to order that special type of grease from there on.
 > Tim
 > 
 > > On Dec 29, 2020, at 7:45 AM, Kelly McMullen <kellym(at)aviating.com> wrote:
 > > 
 > > 
 > > 
 > > As for the grease in the prop, you should use whatever the prop shop installed when it was last reassembled, and there should be a sticker identifying that grease. Most until recent years used Aeroshell 6.
 > > 
 > >> On 12/28/2020 10:50 PM, Lenny Iszak wrote:
 > >> 
 > >> I had mine (2009 prop with 700 hrs) overhauled a few months ago at Palm Beach Aircraft Propeller, for $2845 + tax.
 > >> The seals in it where in pretty bad shape, it was covering my windshield with grease after every flight. A pretty good sign that it needed some TLC.
 > >> Btw, Hartzell recommends a new grease now, so if you do get an overhaul, grab a couple of tubes from the prop shop, as it’s otherwise unobtanium from the popular aircraft parts stores.
 > >> Lenny
 > >>>> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:
 > >>> 
 > >>> 
 > >>> 
 > >>> Rob,
 > >>> You're not alone.  I am overdue on my Hartzell also.  Nearly 15 years
 
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		Bob Turner
 
 
  Joined: 03 Jan 2009 Posts: 885 Location: Castro Valley, CA
  | 
		
			
				 Posted: Thu Dec 31, 2020 5:21 pm    Post subject: Re: When to service the propeller? | 
				     | 
			 
			
				
  | 
			 
			
				I too had an oily liquid run out from a grease gun with Aeroshell 6 on a warm summer day. I cannot recall if I had stored it with the spring pulled back, or not. I did note that you can mix Aeroshell 6 with 5, if you placard the plane not to be operated in temperatures below some number that I forget. Also, like everyone else, I did a cursory search for the new recommended grease, and could not find any retail source. I did find that it cannot be mixed with Aeroshell. BTW, the cautions not to mix incompatible greases should be taken seriously. I still recall Alaskan Airlines loosing an MD80 just offshore from LAX after they had mixed greases on the horizontal stabilizer jack screw.
 
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 _________________ Bob Turner
 
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		Kelly McMullen
 
 
  Joined: 16 Apr 2008 Posts: 1188 Location: Sun Lakes AZ
  | 
		
			
				 Posted: Thu Dec 31, 2020 5:59 pm    Post subject: When to service the propeller? | 
				     | 
			 
			
				
  | 
			 
			
				I know it goes against the grain of CSOB pilots, but a tube of aeroshell 6 is what? Maybe 10-12 bucks, 	  | Quote: | 	 		  | Sent from my TRS-80 Model 100 | 	  
 
 
 On Thu, Dec 31, 2020 at 6:25 PM Bob Turner <bobturner(at)alum.rpi.edu (bobturner(at)alum.rpi.edu)> wrote:
 
  	  | Quote: | 	 		  --> RV10-List message posted by: "Bob Turner" <bobturner(at)alum.rpi.edu (bobturner(at)alum.rpi.edu)>
  
  I too had an oily liquid run out from a grease gun with Aeroshell 6 on a warm summer day. I cannot recall if I had stored it with the spring pulled back, or not. I did note that you can mix Aeroshell 6 with 5, if you placard the plane not to be operated in temperatures below some number that I forget. Also, like everyone else, I did a cursory search for the new recommended grease, and could not find any retail source. I did find that it cannot be mixed with Aeroshell. BTW, the cautions not to mix incompatible greases should be taken seriously. I still recall Alaskan Airlines loosing an MD80 just offshore from LAX after they had mixed greases on the horizontal stabilizer jack screw.
  
  --------
  Bob Turner
  RV-10 QB
  
  
  
  
  Read this topic online here:
  
  http://forums.matronics.com/viewtopic.php?p=499934#499934
  
  
  
  
  
  
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		rleffler
 
  
  Joined: 05 Nov 2006 Posts: 680
 
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				 Posted: Sun Jan 03, 2021 3:21 am    Post subject: When to service the propeller? | 
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  | 
			 
			
				Here’s a photo of the new grease Hartzell is now using. It appears that it’s only available through Hartzell authorized service centers. The shop I used wanted $20~$25 per tube. 
  
  
  It would be nice if one of the major retailers would start stocking. I suspect it may take some time for them to begin aware of the change and demand to warrant stocking. 
  
  
  If anyone finds alternate sources, please let the list know. 
  
  
  Bob
  
  
  
  
  [img]cid:83991414-D473-4DEA-8AC3-49B70D66673A[/img]
  
  Get Outlook for iOS
  
  
   From: owner-rv10-list-server(at)matronics.com <owner-rv10-list-server(at)matronics.com> on behalf of Bob Leffler <bob(at)thelefflers.com>
  Sent: Tuesday, December 29, 2020 10:53:09 AM
  To: rv10-list(at)matronics.com <rv10-list(at)matronics.com>
  Subject: Re: RV10-List: When to service the propeller? 
  
     I was surprised with that as well when I had my prop serviced recently. The shop included a tube of the new grease. I have yet to find a source for the new grease other than a prop shop. 
  
  
  Anyone have a solution for stopping the grease from breaking down and leaking from the gun during hot weather? With just six pumps per condition inspection, it would be nice to use a tube on more than one inspection. 
  
  
  
  Get Outlook for iOS
  
   From: owner-rv10-list-server(at)matronics.com <owner-rv10-list-server(at)matronics.com> on behalf of Tim Olson <Tim(at)MyRV10.com>
  Sent: Tuesday, December 29, 2020 10:26:10 AM
  To: rv10-list(at)matronics.com <rv10-list(at)matronics.com>
  Subject: Re: RV10-List: When to service the propeller? 
  
   --> RV10-List message posted by: Tim Olson <Tim(at)myrv10.com>
  
  On that note,I read recently that hartzell started using a new grease not long ago. So if you have a new prop or get an overhaul or reseal, make sure to verify the type of grease because you may need to order that special type of grease from there on.
  Tim
  
  > On Dec 29, 2020, at 7:45 AM, Kelly McMullen <kellym(at)aviating.com> wrote:
  > 
  > --> RV10-List message posted by: Kelly McMullen <kellym(at)aviating.com>
  > 
  > As for the grease in the prop, you should use whatever the prop shop installed when it was last reassembled, and there should be a sticker identifying that grease. Most until recent years used Aeroshell 6.
  > 
  >> On 12/28/2020 10:50 PM, Lenny Iszak wrote:
  >> --> RV10-List message posted by: Lenny Iszak <lenard(at)rapiddecision.com>
  >> I had mine (2009 prop with 700 hrs) overhauled a few months ago at Palm Beach Aircraft Propeller, for $2845 + tax.
  >> The seals in it where in pretty bad shape, it was covering my windshield with grease after every flight. A pretty good sign that it needed some TLC.
  >> Btw, Hartzell recommends a new grease now, so if you do get an overhaul, grab a couple of tubes from the prop shop, as it’s otherwise unobtanium from the popular aircraft parts stores.
  >> Lenny
  >>>> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:
  >>> 
  >>> --> RV10-List message posted by: Tim Olson <Tim(at)MyRV10.com>
  >>> 
  >>> Rob,
  >>> You're not alone. I am overdue on my Hartzell also. Nearly 15 years.
  >>> But, I did have mine re-sealed a few years ago. I am sure that your
  >>> prop will still be functioning fine a while from now, but, I'd say
  >>> plan on a 10 year at least.
  >>> 
  >>> I've had mine off a few times for various reasons. Inside the
  >>> crank cavity into the prop hub, you've almost certainly got a lot of
  >>> gray paste build-up that happens over time. I've cleaned mine
  >>> out whenever the prop has been off. This winter I plan to get
  >>> the prop overhauled, and it will be interesting to hear how it
  >>> goes. I agree that 6 years and 550 hours would seem pretty short.
  >>> To me it's like how Lycoming recommends an engine rebuild in 12 years
  >>> or 2000 hours. But, there still is a point where an overhaul is due
  >>> and I think I'm there. I intended to do it when I replaced the engine
  >>> this summer, but this wasn't a good year for it $$$.
  >>> 
  >>> I have heard overhauls run $2500, but the place near me charges
  >>> $3000. Would be nice to hear what kinds of quotes other people have
  >>> gotten, and where they recommend.
  >>> Tim
  >>> 
  >>> 
  >>> On 12/28/20 10:58 PM, Rob Kochman wrote:
  >>>> My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours  total time) and the fact that it's always hangared, that seemed excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!
  >>>> -Rob
  >>>> -- 
  >>>> Rob Kochman
  >>>> RV-10 Flying since March 2011
  >>>> Kirkland, WA
  >>> 
  >>> 
  >>> 
  > 
  > 
  >
 
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		Kellym
 
 
  Joined: 10 Jan 2006 Posts: 1706 Location: Sun Lakes AZ
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				 Posted: Sun Jan 03, 2021 6:31 am    Post subject: When to service the propeller? | 
				     | 
			 
			
				
  | 
			 
			
				The only one I found is:
 https://www.skygeek.com/nyco-gn-148-blue-grease-400-gram-cartridge.html
 $23
 On 1/3/2021 4:20 AM, Bob Leffler wrote:
  	  | Quote: | 	 		   Here’s a photo of the new grease Hartzell is now using.   It appears 
  that it’s only available through Hartzell authorized service centers. 
    The shop I used wanted $20~$25 per tube.
  
  It would be nice if one of the major retailers would start stocking.  I 
  suspect it may take some time for them to begin aware of the change and 
  demand to warrant stocking.
  
  If anyone finds alternate sources, please let the list know.
  
  Bob
  
  Image.jpeg
  Get Outlook for iOS <https://aka.ms/o0ukef>
  ------------------------------------------------------------------------
  *From:* owner-rv10-list-server(at)matronics.com 
  <owner-rv10-list-server(at)matronics.com> on behalf of Bob Leffler 
  <bob(at)thelefflers.com>
  *Sent:* Tuesday, December 29, 2020 10:53:09 AM
  *To:* rv10-list(at)matronics.com <rv10-list(at)matronics.com>
  *Subject:* Re: When to service the propeller?
  I was surprised with that as well when I had my prop serviced recently. 
    The shop included a tube of the new grease.   I have yet to find a 
  source for the new grease other than a prop shop.
  
  Anyone have a solution for stopping the grease from breaking down and 
  leaking from the gun during hot weather?   With just six pumps per 
  condition inspection, it would be nice to use a tube on more than one 
  inspection.
  
  Get Outlook for iOS <https://aka.ms/o0ukef>
  ------------------------------------------------------------------------
  *From:* owner-rv10-list-server(at)matronics.com 
  <owner-rv10-list-server(at)matronics.com> on behalf of Tim Olson 
  <Tim(at)MyRV10.com>
  *Sent:* Tuesday, December 29, 2020 10:26:10 AM
  *To:* rv10-list(at)matronics.com <rv10-list(at)matronics.com>
  *Subject:* Re: When to service the propeller?
  
  
  On that note,I read recently that hartzell started using a new grease 
  not long ago. So if you have a new prop or get an overhaul or reseal, 
  make sure to verify the type of grease because you may need to order 
  that special type of grease from there on.
  Tim
  
 > On Dec 29, 2020, at 7:45 AM, Kelly McMullen <kellym(at)aviating.com> wrote:
 > 
 > 
 > 
 > As for the grease in the prop, you should use whatever the prop shop installed when it was last reassembled, and there should be a sticker identifying that grease. Most until recent years used Aeroshell 6.
 > 
 >> On 12/28/2020 10:50 PM, Lenny Iszak wrote:
 >> 
 >> I had mine (2009 prop with 700 hrs) overhauled a few months ago at Palm Beach Aircraft Propeller, for $2845 + tax.
 >> The seals in it where in pretty bad shape, it was covering my windshield with grease after every flight. A pretty good sign that it needed some TLC.
 >> Btw, Hartzell recommends a new grease now, so if you do get an overhaul, grab a couple of tubes from the prop shop, as it’s otherwise unobtanium from the popular aircraft parts stores.
 >> Lenny
 >>>> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:
 >>> 
 >>> 
 >>> 
 >>> Rob,
 >>> You're not alone.  I am overdue on my Hartzell also.  Nearly 15 years.
 >>> But, I did have mine re-sealed a few years ago.  I am sure that your
 >>> prop will still be functioning fine a while from now, but, I'd say
 >>> plan on a 10 year at least.
 >>> 
 >>> I've had mine off a few times for various reasons.  Inside the
 >>> crank cavity into the prop hub, you've almost certainly got a lot of
 >>> gray paste build-up that happens over time.   I've cleaned mine
 >>> out whenever the prop has been off.  This winter I plan to get
 >>> the prop overhauled, and it will be interesting to hear how it
 >>> goes.  I agree that 6 years and 550 hours would seem pretty short.
 >>> To me it's like how Lycoming recommends an engine rebuild in 12 years
 >>> or 2000 hours.  But, there still is a point where an overhaul is due
 >>> and I think I'm there. I intended to do it when I replaced the engine
 >>> this summer, but this wasn't a good year for it $$$.
 >>> 
 >>> I have heard overhauls run $2500, but the place near me charges
 >>> $3000.  Would be nice to hear what kinds of quotes other people have
 >>> gotten, and where they recommend.
 >>> Tim
 >>> 
 >>> 
 >>> On 12/28/20 10:58 PM, Rob Kochman wrote:
 >>>> My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours  total time) and the fact that it's always hangared, that seemed 
  excessively conservative. It's also not leaking any oil (still looks 
  like new inside the spinner). However, I'm now approaching 10 years, so 
  curious to hear what people recommend. Thanks!
 >>>> -Rob
 >>>> -- 
 >>>> Rob Kochman
 >>>> RV-10 Flying since March 2011
 >>>> Kirkland, WA
 >>> 
 >>> 
 >>> 
 > 
 > 
 > 
  
  <http://www.matronics.com/Navigator?RV10-List>
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		wgreenley
 
 
  Joined: 09 Jan 2010 Posts: 100 Location: Dowagiac, MI
  | 
		
			
				 Posted: Sun Jan 03, 2021 9:24 am    Post subject: When to service the propeller? | 
				     | 
			 
			
				
  | 
			 
			
				The manufacturer describes is as follows: (interesting that they list it as a wheel bearing grease)
 The newest high-temperature range grease for longer wheel bearing lifeDESCRIPTION
 NYCO GREASE GN 3058 is a white lithium complex thickened synthetic grease designed to operate in salty and humid environment in a very wide temperature range going from -54°C to +175°C.APPLICATIONS- Wheels
 - Landing gears
 - Heavy loaded systems
  MAIN BENEFITS- High load carrying capabilities,
 - Outstanding resistance to water washout and to high temperatures,
 - Very good protection against corrosion even in the presence of salt water.
  
 
 On Sun, Jan 3, 2021 at 10:47 AM Lenard Iszak <lenard(at)rapiddecision.com (lenard(at)rapiddecision.com)> wrote:
 
  	  | Quote: | 	 		  This is what they put in my prop:
  
  
  
  
  
  Lenny
  
  
  > On Jan 3, 2021, at 9:54 AM, Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)> wrote:
  > 
  > --> RV10-List message posted by: Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)>
  > 
  > The only one I found is:
  > https://www.skygeek.com/nyco-gn-148-blue-grease-400-gram-cartridge.html
  > $23
  >> On 1/3/2021 4:20 AM, Bob Leffler wrote:
  >> Here’s a photo of the new grease Hartzell is now using.   It appears that it’s only available through Hartzell authorized service centers.   The shop I used wanted $20~$25 per tube.
  >> It would be nice if one of the major retailers would start stocking.  I suspect it may take some time for them to begin aware of the change and demand to warrant stocking.
  >> If anyone finds alternate sources, please let the list know.
  >> Bob
  >> Image.jpeg
  >> Get Outlook for iOS <https://aka.ms/o0ukef>
  >> ------------------------------------------------------------------------
  >> *From:* owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com) <owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com)> on behalf of Bob Leffler <bob(at)thelefflers.com (bob(at)thelefflers.com)>
  >> *Sent:* Tuesday, December 29, 2020 10:53:09 AM
  >> *To:* rv10-list(at)matronics.com (rv10-list(at)matronics.com) <rv10-list(at)matronics.com (rv10-list(at)matronics.com)>
  >> *Subject:* Re: When to service the propeller?
  >> I was surprised with that as well when I had my prop serviced recently.   The shop included a tube of the new grease.   I have yet to find a source for the new grease other than a prop shop.
  >> Anyone have a solution for stopping the grease from breaking down and leaking from the gun during hot weather?   With just six pumps per condition inspection, it would be nice to use a tube on more than one inspection.
  >> Get Outlook for iOS <https://aka.ms/o0ukef>
  >> ------------------------------------------------------------------------
  >> *From:* owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com) <owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com)> on behalf of Tim Olson <Tim(at)MyRV10.com>
  >> *Sent:* Tuesday, December 29, 2020 10:26:10 AM
  >> *To:* rv10-list(at)matronics.com (rv10-list(at)matronics.com) <rv10-list(at)matronics.com (rv10-list(at)matronics.com)>
  >> *Subject:* Re: When to service the propeller?
  >> --> RV10-List message posted by: Tim Olson <Tim(at)myrv10.com (Tim(at)myrv10.com)>
  >> On that note,I read recently that hartzell started using a new grease not long ago. So if you have a new prop or get an overhaul or reseal, make sure to verify the type of grease because you may need to order that special type of grease from there on.
  >> Tim
  >>>> On Dec 29, 2020, at 7:45 AM, Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)> wrote:
  >>> --> RV10-List message posted by: Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)>
  >>> As for the grease in the prop, you should use whatever the prop shop installed when it was last reassembled, and there should be a sticker identifying that grease. Most until recent years used Aeroshell 6.
  >>>> On 12/28/2020 10:50 PM, Lenny Iszak wrote:
  >>>> --> RV10-List message posted by: Lenny Iszak <lenard(at)rapiddecision.com (lenard(at)rapiddecision.com)>
  >>>> I had mine (2009 prop with 700 hrs) overhauled a few months ago at Palm Beach Aircraft Propeller, for $2845 + tax.
  >>>> The seals in it where in pretty bad shape, it was covering my windshield with grease after every flight. A pretty good sign that it needed some TLC.
  >>>> Btw, Hartzell recommends a new grease now, so if you do get an overhaul, grab a couple of tubes from the prop shop, as it’s otherwise unobtanium from the popular aircraft parts stores.
  >>>> Lenny
  >>>>>> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:
  >>>>> --> RV10-List message posted by: Tim Olson <Tim(at)MyRV10.com>
  >>>>> Rob,
  >>>>> You're not alone.  I am overdue on my Hartzell also.  Nearly 15 years.
  >>>>> But, I did have mine re-sealed a few years ago.  I am sure that your
  >>>>> prop will still be functioning fine a while from now, but, I'd say
  >>>>> plan on a 10 year at least.
  >>>>> I've had mine off a few times for various reasons.  Inside the
  >>>>> crank cavity into the prop hub, you've almost certainly got a lot of
  >>>>> gray paste build-up that happens over time.   I've cleaned mine
  >>>>> out whenever the prop has been off.  This winter I plan to get
  >>>>> the prop overhauled, and it will be interesting to hear how it
  >>>>> goes.  I agree that 6 years and 550 hours would seem pretty short.
  >>>>> To me it's like how Lycoming recommends an engine rebuild in 12 years
  >>>>> or 2000 hours.  But, there still is a point where an overhaul is due
  >>>>> and I think I'm there. I intended to do it when I replaced the engine
  >>>>> this summer, but this wasn't a good year for it $$$.
  >>>>> I have heard overhauls run $2500, but the place near me charges
  >>>>> $3000.  Would be nice to hear what kinds of quotes other people have
  >>>>> gotten, and where they recommend.
  >>>>> Tim
  >>>>> On 12/28/20 10:58 PM, Rob Kochman wrote:
  >>>>>> My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours  total time) and the fact that it's always hangared, that seemed 
  >> excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!
  >>>>>> -Rob
  >>>>>> -- 
  >>>>>> Rob Kochman
  >>>>>> RV-10 Flying since March 2011
  >>>>>> Kirkland, WA
  >> <http://www.matronics.com/Navigator?RV10-List>
  >> <http://www.matronics.com/contribution>
  ===========
  ===========
  ===========
  ===========
  ===========
  > 
  > 
  > 
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		TimRVator(at)comcast.net Guest
 
 
 
 
 
  | 
		
			
				 Posted: Sun Jan 03, 2021 3:03 pm    Post subject: When to service the propeller? | 
				     | 
			 
			
				
  | 
			 
			
				 	  | Quote: | 	 		   Anyone have a solution for stopping the grease from breaking down and 
  leaking from the gun during hot weather?   With just six pumps per 
  condition inspection, it would be nice to use a tube on more than one 
  inspection. 
 
 | 	  
 On my grease gun, I can pull the T handle all the way back, rotate the 
 handle (takes some trial and error) to find the T handle orientation 
 where the handle stays pulled out.  This keeps the grease from being 
 under constant spring pressure, which helps prevent the oil from 
 separating from the wax (on Aeroshell 6).
 
 BTW, Aeroshell now extends the shelf life of Aeroshell 6 if unopened and 
 stored at constant temp:
 https://jota.net.pl/wp-content/uploads/2020/03/Change-of-AeroShell-Grease-Shelf-Life-12062019.pdf
 
 -- 
 Tim Lewis -- HEF (Manassas, VA)
 CFI, A&P
 RV-6A N47TD -- 1104 hrs - sold
 RV-10 N31TD -- 1200 hrs
 
 Bob Leffler wrote on 12/29/2020 10:53 AM:
  	  | Quote: | 	 		   I was surprised with that as well when I had my prop serviced 
  recently.  The shop included a tube of the new grease.   I have yet to 
  find a source for the new grease other than a prop shop.
 
  Anyone have a solution for stopping the grease from breaking down and 
  leaking from the gun during hot weather?   With just six pumps per 
  condition inspection, it would be nice to use a tube on more than one 
  inspection.
 
  Get Outlook for iOS <https://aka.ms/o0ukef>
  ------------------------------------------------------------------------
  *From:* owner-rv10-list-server(at)matronics.com 
  <owner-rv10-list-server(at)matronics.com> on behalf of Tim Olson 
  <Tim(at)MyRV10.com>
  *Sent:* Tuesday, December 29, 2020 10:26:10 AM
  *To:* rv10-list(at)matronics.com <rv10-list(at)matronics.com>
  *Subject:* Re: When to service the propeller?
  
 
  On that note,I read recently that hartzell started using a new grease 
  not long ago. So if you have a new prop or get an overhaul or reseal, 
  make sure to verify the type of grease because you may need to order 
  that special type of grease from there on.
  Tim
 
  > On Dec 29, 2020, at 7:45 AM, Kelly McMullen <kellym(at)aviating.com> wrote:
  >
  > 
  >
  > As for the grease in the prop, you should use whatever the prop shop 
  installed when it was last reassembled, and there should be a sticker 
  identifying that grease. Most until recent years used Aeroshell 6.
  >
  >> On 12/28/2020 10:50 PM, Lenny Iszak wrote:
  >> 
  >> I had mine (2009 prop with 700 hrs) overhauled a few months ago at 
  Palm Beach Aircraft Propeller, for $2845 + tax.
  >> The seals in it where in pretty bad shape, it was covering my 
  windshield with grease after every flight. A pretty good sign that it 
  needed some TLC.
  >> Btw, Hartzell recommends a new grease now, so if you do get an 
  overhaul, grab a couple of tubes from the prop shop, as it’s otherwise 
  unobtanium from the popular aircraft parts stores.
  >> Lenny
  >>>> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:
  >>>
  >>> 
  >>>
  >>> Rob,
  >>> You're not alone.  I am overdue on my Hartzell also.  Nearly 15 years.
  >>> But, I did have mine re-sealed a few years ago.  I am sure that your
  >>> prop will still be functioning fine a while from now, but, I'd say
  >>> plan on a 10 year at least.
  >>>
  >>> I've had mine off a few times for various reasons.  Inside the
  >>> crank cavity into the prop hub, you've almost certainly got a lot of
  >>> gray paste build-up that happens over time. I've cleaned mine
  >>> out whenever the prop has been off.  This winter I plan to get
  >>> the prop overhauled, and it will be interesting to hear how it
  >>> goes.  I agree that 6 years and 550 hours would seem pretty short.
  >>> To me it's like how Lycoming recommends an engine rebuild in 12 years
  >>> or 2000 hours.  But, there still is a point where an overhaul is due
  >>> and I think I'm there. I intended to do it when I replaced the engine
  >>> this summer, but this wasn't a good year for it $$$.
  >>>
  >>> I have heard overhauls run $2500, but the place near me charges
  >>> $3000.  Would be nice to hear what kinds of quotes other people have
  >>> gotten, and where they recommend.
  >>> Tim
  >>>
  >>>
  >>> On 12/28/20 10:58 PM, Rob Kochman wrote:
  >>>> My RV-10 has the standard Hartzell 2-blade constant speed prop, 
  purchased new. To this point, I've done nothing but lubricate and 
  inspect it annually, as well as file out nicks. I know Hartzell says 6 
  years for an overhaul, but given limited use (550 hours total time) 
  and the fact that it's always hangared, that seemed excessively 
  conservative. It's also not leaking any oil (still looks like new 
  inside the spinner). However, I'm now approaching 10 years, so curious 
  to hear what people recommend. Thanks!
  >>>> -Rob
  >>>> --
  >>>> Rob Kochman
  >>>> RV-10 Flying since March 2011
  >>>> Kirkland, WA
  >>>
  >>>
  >>>
  >
  >
  >
 
  <http://www.matronics.com/Navigator?RV10-List>
  <http://www.matronics.com/contribution>
 
 
 | 	 
 
 
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  http://www.matronics.com/Navigator?RV10-List |  
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