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A-2200 oil leak
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ces308

Joined: 03 Nov 2008
Posts: 317
Location: houghton lake ,mi

Posted: Sun Jun 07, 2009 4:57 pm Post subject: A-2200 oil leak

Hi ! 

I am new to this list and I have a Kolb Mark 3 Xtra with a A-2200 jabiru solid lifter engine on it with 20.6 hrs on it. Everything has been going great but for a little seepage coming from the ,what looks to be ,the cam cover in the front of the engine under the crank shaft.My Question is, can I remove the 4 allen head bolts,remove the cover and either make a gasket of put a sealent on it to stop the leak?If I take the bolts out ,are they holding anything in side the engine in that area? 



Thanks,

chris ambrose

Kolb M3X/Jab

N327CS

plus2s

Joined: 30 Nov 2006
Posts: 65
Location: NEW ZEALAND

Posted: Sun Jun 07, 2009 6:14 pm Post subject: A-2200 oil leak

Hi Chris

  

 Yes you can do that - It is the oil pump cover. We have also had a leak from the front cranshaft seal directly above the oil pump.

  

 Regards

  

 Keith



--- On Mon, 8/6/09, ces308 <ces308(at)ldaco.com> wrote:



  	  Quote: 	
		  

From: ces308 <ces308(at)ldaco.com>

Subject: A-2200 oil leak

To: jabiruengine-list(at)matronics.com

Received: Monday, 8 June, 2009, 12:57 PM



 --> JabiruEngine-List message posted by: "ces308" <ces308(at)ldaco.com (ces308(at)ldaco.com)>



Hi ! 

I am new to this list and I have a Kolb Mark 3 Xtra with a A-2200 jabiru solid lifter engine on it with 20.6 hrs on it. Everything has been going great but for a little seepage coming from the ,what looks to be ,the cam cover in the front of the engine under the crank shaft.My Question is, can I remove the 4 allen head bolts,remove the cover and either make a gasket of put a sealent on it to stop the leak?If I take the bolts out ,are they holding anything in side the engine in that area? 



Thanks,

chris ambrose

Kolb M3X/Jab

N327CS





Read this topic online here:



http://forums.matronics.com/viewtopic.php?p=247230#24723=          - The JabiruEngine-List Email Forum -nics.com/Navigator?JabiruEngine-List" target=_blank>http://www.matronics.rums.matronics.com/" ;               -Matt Dralle, List Admin==========





	
  [quote][b]

JohnDRead(at)aol.com
Guest

Posted: Sun Jun 07, 2009 6:54 pm Post subject: A-2200 oil leak

Hi Chris;

             If  you go to the www.usjabiru.com web site  you can down load the engine manual and that will show you all the detail you  need. do not archive.

  

 John  Read

CH701 - Elbert CO - Jabiru 3300



Phone: 303-648-3261

Fax:  303-648-3262

Cell: 719-494-4567   

  In a message dated 6/7/2009 7:01:16 P.M. Mountain Daylight Time,  ces308(at)ldaco.com writes:

  	  Quote: 	
		  -->    JabiruEngine-List message posted by: "ces308"    <ces308(at)ldaco.com>



Hi ! 

I am new to this list and I have a    Kolb Mark 3 Xtra with a A-2200 jabiru solid lifter engine on it with 20.6 hrs    on it. Everything has been going great but for a little seepage coming from    the ,what looks to be ,the cam cover in the front of the engine under the    crank shaft.My Question is, can I remove the 4 allen head bolts,remove the    cover and either make a gasket of put a sealent on it to stop the leak?If I    take the bolts out ,are they holding anything in side the engine in that area?    



Thanks,

chris ambrose

Kolb    M3X/Jab

N327CS





Read this topic online    here:



http://forums.matronics.com/viewtopic.php?p=247230#247230===============================================

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 An Excellent Credit Score is 750. See Yours in Just 2 Easy Steps!

ces308

Joined: 03 Nov 2008
Posts: 317
Location: houghton lake ,mi

Posted: Sun Jun 07, 2009 7:15 pm Post subject: Re: A-2200 oil leak

Thank you....It looks like there is an O ring that goes around the housing??

What did you guys use for a sealent??



chris ambrose

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Mon Jun 08, 2009 9:50 am Post subject: A-2200 oil leak

Don't make a gasket at that location. Use the preferred Loctite 515  

sealant per the maintenance manual. If you use a gasket at that  

location, you will set the cover too far away from the oil pump  

rotor, and probably lose oil pressure. Follow the recommended  

procedures in the manual.



What serial number is your engine?



Lynn Matteson

Kitfox IV Speedster, taildragger

Jabiru 2200, #2062, 671.6 hrs

Sensenich 62x46 Wood prop

Electroair direct-fire ignition system

Status: flying

do not archive



On Jun 7, 2009, at 8:57 PM, ces308 wrote:



 	  Quote: 	
		   



 Hi !

 I am new to this list and I have a Kolb Mark 3 Xtra with a A-2200  

 jabiru solid lifter engine on it with 20.6 hrs on it. Everything  

 has been going great but for a little seepage coming from the ,what  

 looks to be ,the cam cover in the front of the engine under the  

 crank shaft.My Question is, can I remove the 4 allen head  

 bolts,remove the cover and either make a gasket of put a sealent on  

 it to stop the leak?If I take the bolts out ,are they holding  

 anything in side the engine in that area?



 Thanks,

 chris ambrose

 Kolb M3X/Jab

 N327CS





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p 47230#247230

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Mon Jun 08, 2009 9:50 am Post subject: A-2200 oil leak

Loctite 515, and NO gasket.



Lynn Matteson

Kitfox IV Speedster, taildragger

Jabiru 2200, #2062, 671.6 hrs

Sensenich 62x46 Wood prop

Electroair direct-fire ignition system

Status: flying

do not archive



On Jun 7, 2009, at 11:15 PM, ces308 wrote:



 	  Quote: 	
		   



 Thank you....It looks like there is an O ring that goes around the  

 housing??

 What did you guys use for a sealent??



 chris ambrose





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p 47245#247245

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Mon Jun 08, 2009 12:40 pm Post subject: A-2200 oil leak

Chris, I just got to thinking about something else.....if your engine  

only has 20-some hours on it, it could be that the rings haven't  

seated yet, and pressure is getting by the rings and putting excess  

pressure inside the crankcase.  I know you'd like to not have any  

leaks, but if you put some hours on the engine, maybe the rings will  

seat, and your seepage will go away all by itself.



Also, keep a good eye out for the valve clearances...mine were  

getting too loose, too often.



Lynn Matteson

Kitfox IV Speedster, taildragger

Jabiru 2200, #2062, 672.2 hrs

Sensenich 62x46 Wood prop

Electroair direct-fire ignition system

Status: flying





On Jun 7, 2009, at 8:57 PM, ces308 wrote:



 	  Quote: 	
		   



 Hi !

 I am new to this list and I have a Kolb Mark 3 Xtra with a A-2200  

 jabiru solid lifter engine on it with 20.6 hrs on it. Everything  

 has been going great but for a little seepage coming from the ,what  

 looks to be ,the cam cover in the front of the engine under the  

 crank shaft.My Question is, can I remove the 4 allen head  

 bolts,remove the cover and either make a gasket of put a sealent on  

 it to stop the leak?If I take the bolts out ,are they holding  

 anything in side the engine in that area?



 Thanks,

 chris ambrose

 Kolb M3X/Jab

 N327CS





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p 47230#247230

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

ces308

Joined: 03 Nov 2008
Posts: 317
Location: houghton lake ,mi

Posted: Mon Jun 08, 2009 1:38 pm Post subject: Re: A-2200 oil leak

Thank you Lynn,

I have thought about that also. I have done the valve adjustments per the manual along with the heads and the last check at 15hrs all were good.My next check is at 25hrs along with an oil change.It is very little,but there.The engine runs great...I have been very impressed with the power it has on my M3X.I will wait awhile before I do anything.What about oil?....I have used AeroShell 15-50  forever in my 172's O-320-e2d with terrific luck....what is your opinion on that...??



chris ambrose

ces308

Joined: 03 Nov 2008
Posts: 317
Location: houghton lake ,mi

Posted: Mon Jun 08, 2009 1:43 pm Post subject: Re: A-2200 oil leak

...I forgot to tell you my engine is 22A-1228.



chris ambrose

zeprep251(at)aol.com
Guest

Posted: Mon Jun 08, 2009 4:25 pm Post subject: A-2200 oil leak

Chris,

   I recall someone one on the list mentioned that they had an oil pump cover that had a hole in it.It was leaking through the cover not around it.I never heard any more about it but it sounded like it had a thin spot in the aluminum.Just a thought.

                     G Aman MK3C 2200 Jabiru 435 hrs

 

   

 

   

 

 --

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Tue Jun 09, 2009 2:30 am Post subject: A-2200 oil leak

Well, I got a vote for 15-50 from a former worker at Shell Oil  

Company. He said because it was multi-grade, it was thinner at low  

temps and therefore got into the bearings quicker. But my flight  

instructor/A&P/IA says he feels like he gets better overall  

lubrication with single grade Aeroshell W100. Also, I have recently  

read that a certain portion of the multigrade stuff is a chemical  

that makes it multigrade, and that chemical is non-lubricating, so  

some of the "quart of oil" is not oil, so I've gone back to the  

straight W100 (SAE 50), and now I use it year around. I heat my  

engine in the wintertime, so the oil is already somewhat thin when I  

start my engine, so in a sense, I'm doing what the multigrade  

does....sort of.



Lynn Matteson

Kitfox IV Speedster, taildragger

Jabiru 2200, #2062, 672.2 hrs

Sensenich 62x46 Wood prop

Electroair direct-fire ignition system

Status: flying





On Jun 8, 2009, at 5:38 PM, ces308 wrote:



 	  Quote: 	
		   



 Thank you Lynn,

 I have thought about that also. I have done the valve adjustments  

 per the manual along with the heads and the last check at 15hrs all  

 were good.My next check is at 25hrs along with an oil change.It is  

 very little,but there.The engine runs great...I have been very  

 impressed with the power it has on my M3X.I will wait awhile before  

 I do anything.What about oil?....I have used AeroShell 15-50   

 forever in my 172's O-320-e2d with terrific luck....what is your  

 opinion on that...??



 chris ambrose





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p 47352#247352

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Tue Jun 09, 2009 2:33 am Post subject: A-2200 oil leak

Thanks, I was just going to look and see if you answered that. It  

helps me and others to keep track of the engine history and what  

Jabiru might have changed over the years. I'm not sure of when they  

did it, but my engine had teflon-coated rocker arm bushings, which  

failed, and that's why I mentioned checking the valve lash often.  

When mine started to go bad, the first indication was a slightly  

rough running engine, and loose valve adjustments. Setting them back  

to .010" made it run well again. When this happened again, rather  

soon, I started looking further and that's when I found brassy- 

looking particles in the rocker covers.



Lynn Matteson

Kitfox IV Speedster, taildragger

Jabiru 2200, #2062, 672.2 hrs

Sensenich 62x46 Wood prop

Electroair direct-fire ignition system

Status: flying





On Jun 8, 2009, at 5:43 PM, ces308 wrote:



 	  Quote: 	
		   



 ...I forgot to tell you my engine is 22A-1228.



 chris ambrose





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p 47355#247355

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

plus2s

Joined: 30 Nov 2006
Posts: 65
Location: NEW ZEALAND

Posted: Tue Jun 09, 2009 12:23 pm Post subject: A-2200 oil leak

Hi Lynn

  

 I replaced two rocker bushes at 900 hrs - now done 993 has been on Shell 15- 50 since the running in oil was drained at 45 hours. We have cold winters and warm summers and have fitted an oil thermostat

  

 Regards

 keith



--- On Tue, 9/6/09, Lynn Matteson <lynnmatt(at)jps.net> wrote:



  	  Quote: 	
		  

From: Lynn Matteson <lynnmatt(at)jps.net>

Subject: Re: Re: A-2200 oil leak

To: jabiruengine-list(at)matronics.com

Received: Tuesday, 9 June, 2009, 10:31 PM



 --> JabiruEngine-List message posted by: Lynn Matteson <lynnmatt(at)jps.net (lynnmatt(at)jps.net)>



Thanks, I was just going to look and see if you answered that. It helps me and others to keep track of the engine history and what Jabiru might have changed over the years. I'm not sure of when they did it, but my engine had teflon-coated rocker arm bushings, which failed, and that's why I mentioned checking the valve lash often. When mine started to go bad, the first indication was a slightly rough running engine, and loose valve adjustments.. Setting them back to .010" made it run well again. When this happened again, rather soon, I started looking further and that's when I found brassy-looking particles in the rocker covers.



Lynn Matteson

Kitfox IV Speedster, taildragger

Jabiru 2200, #2062, 672.2 hrs

Sensenich 62x46  Wood prop

Electroair direct-fire ignition system

Status: flying





On Jun 8, 2009, at 5:43 PM, ces308 wrote:



 	  Quote: 	
		   --> JabiruEngine-List message posted by: "ces308" <ces308(at)ldaco.com (ces308(at)ldaco.com)>

 

 ...I forgot to tell you my engine is 22A-1228.

 

 chris ambrose

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=247355#247355

 

 

 

 

 

 

 

 

 Use the Matronics List Features Navigator to f="http://www.matronics.com/Navigator?JabiruEngine-List" target=_blank> http://forums.mat            - List Contribution Web Site;                            -Matt Dralle, List Admin.=========
	






	
  [quote][b]

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Tue Jun 09, 2009 4:43 pm Post subject: A-2200 oil leak

Hi Keith-

Did you look at all the rocker bushings when you did the two? I'm  

surprised only two needed replacing.



I decided against the oil thermostat because of the extra fittings  

involved, and instead installed a butterfly-type valve to regulate  

the air to the oil cooler. It works very well until I forget  

sometimes to open it and that's when I wished I had the 'stat. : ) I  

can actually leave it closed all winter long (flying on skis), and  

this gets me into the habit of sometimes forgetting it, but the  

warning light gets my attention.



Lynn Matteson

Kitfox IV Speedster, taildragger

Jabiru 2200, #2062, 672.2 hrs

Sensenich 62x46 Wood prop

Electroair direct-fire ignition system

Status: flying

do not archive



On Jun 9, 2009, at 4:23 PM, Keith Pickford wrote:



 	  Quote: 	
		   Hi Lynn



 I replaced two rocker bushes at 900 hrs - now done 993 has been on  

 Shell 15- 50 since the running in oil was drained at 45 hours. We  

 have cold winters and warm summers and have fitted an oil thermostat



 Regards

 keith



 --- On Tue, 9/6/09, Lynn Matteson <lynnmatt(at)jps.net> wrote:



 From: Lynn Matteson <lynnmatt(at)jps.net>

 Subject: Re: Re: A-2200 oil leak

 To: jabiruengine-list(at)matronics.com

 Received: Tuesday, 9 June, 2009, 10:31 PM



 

 <lynnmatt(at)jps.net>



 Thanks, I was just going to look and see if you answered that. It  

 helps me and others to keep track of the engine history and what  

 Jabiru might have changed over the years. I'm not sure of when they  

 did it, but my engine had teflon-coated rocker arm bushings, which  

 failed, and that's why I mentioned checking the valve lash often.  

 When mine started to go bad, the first indication was a slightly  

 rough running engine, and loose valve adjustments... Setting them  

 back to .010" made it run well again. When this happened again,  

 rather soon, I started looking further and that's when I found  

 brassy-looking particles in the rocker covers.



 Lynn Matteson

 Kitfox IV Speedster, taildragger

 Jabiru 2200, #2062, 672.2 hrs

 Sensenich 62x46 Wood prop

 Electroair direct-fire ignition system

 Status: flying





 On Jun 8, 2009, at 5:43 PM, ces308 wrote:



 > 

 >

 > ...I forgot to tell you my engine is 22A-1228.

 >

 > chris ambrose

 >

 >

 >

 >

 > Read this topic online here:

 >

 > http://forums.matronics.com/viewtopic.php?p 47355#247355

 >

 >

 >

 >

 >

 >

 >

 >

 Use the Matronics List Features Navigator to f="http:// 

 www.matronics.com/Navigator?JabiruEngine-List" target=_blank>  

 http://forums.mat            - List Contribution Web  

 Site;                           -Matt Dralle, List Admin.=========



 www.matronics.com/contribution _- 

 ============================================================

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

ces308

Joined: 03 Nov 2008
Posts: 317
Location: houghton lake ,mi

Posted: Tue Jun 09, 2009 5:39 pm Post subject: Re: A-2200 oil leak

Thank guys,for the heads up on the engine.I will keep my eyes open for the problems.Anything else I should be looking for?



chris ambrose

m3x/jab     21.6hrs

plus2s

Joined: 30 Nov 2006
Posts: 65
Location: NEW ZEALAND

Posted: Tue Jun 09, 2009 5:47 pm Post subject: A-2200 oil leak

Hi Lynn

  

 Yes checked them all - the two I replaced were both on number one cyl. Will be doing a top overhaul before too long. Went with the oil thermostat as we have many people of different experience levels flying the aircraft and I wanted to keep it simple.

 Also about to strip a earley hydraulic lifter engine (ser # 2440) that needs line boring after 500 hours.

  

 Regards

 Keith



--- On Wed, 10/6/09, Lynn Matteson <lynnmatt(at)jps.net> wrote:



  	  Quote: 	
		  

From: Lynn Matteson <lynnmatt(at)jps.net>

Subject: Re: Re: A-2200 oil leak

To: jabiruengine-list(at)matronics.com

Received: Wednesday, 10 June, 2009, 12:37 PM



 --> JabiruEngine-List message posted by: Lynn Matteson <lynnmatt(at)jps.net (lynnmatt(at)jps.net)>



Hi Keith-

Did you look at all the rocker bushings when you did the two? I'm surprised only two needed replacing.



I decided against the oil thermostat because of the extra fittings involved, and instead installed a butterfly-type valve to regulate the air to the oil cooler. It works very well until I forget sometimes to open it and that's when I wished I had the 'stat. : ) I can actually leave it closed all winter long (flying on skis), and this gets me into the habit of sometimes forgetting it, but the warning light gets my attention.



Lynn Matteson

Kitfox IV Speedster, taildragger

Jabiru 2200, #2062, 672.2 hrs

Sensenich 62x46 Wood prop

Electroair direct-fire ignition system

Status: flying

do not  archive





	
 [quote][b]

plus2s

Joined: 30 Nov 2006
Posts: 65
Location: NEW ZEALAND

Posted: Tue Jun 09, 2009 5:59 pm Post subject: A-2200 oil leak

Hi Chris

  

 Only other thought at this stage is don't hurry to change from the straight (running in) oil if the oil burn has not settled - we have one motor done 42 hours and haven't changed to the multi grade yet.

  

 Regards

 Keith



--- On Wed, 10/6/09, ces308 <ces308(at)ldaco.com> wrote:



  	  Quote: 	
		  

From: ces308 <ces308(at)ldaco.com>

Subject: Re: A-2200 oil leak

To: jabiruengine-list(at)matronics.com

Received: Wednesday, 10 June, 2009, 1:39 PM



 --> JabiruEngine-List message posted by: "ces308" <ces308(at)ldaco.com (ces308(at)ldaco.com)>



Thank guys,for the heads up on the engine.I will keep my eyes open for the problems.Anything else I should be looking for?



chris ambrose

m3x/jab     21.6hrs





Read this topic online here:



http://forums.matronics.com/viewtopic.php?p=http://foru             - List Contribution We                     &nbs;--> http://www.======================





	
 [quote][b]

BobsV35B(at)aol.com
Guest

Posted: Tue Jun 09, 2009 6:37 pm Post subject: A-2200 oil leak

Good Evening Keith,

  

 Just out of curiosity, why do you want to use a different oil for break in  than you do for normal use?

  

 Following the recommendation of a local Boutique engine shop owner, I have  broken in my last three engines using multigrade aviation oil. Seemed to work  just fine. They all ran good, broke in fast and seem to be doing just fine. The  rings were fully seated in way less than five hours. The first one I broke in  that way was retired after running eighteen hundred hours without a cylinder  being pulled or any major component needing service.  I think the old  mineral oil idea is just an ancient Old Wive's Tale!

  

 Happy Skies,

  

 Old Bob

  

  In a message dated 6/9/2009 9:00:08 P.M. Central Daylight Time,  kpickford(at)xtra.co.nz writes:

  	  Quote: 	
		                               Hi Chris

          

         Only other thought at this stage is don't hurry to change from the          straight (running in) oil if the oil burn has not settled - we have one          motor done 42 hours and haven't changed to the multi grade yet.

          

         Regards

         Keith



	


 A Good Credit Score is 700 or Above.ol?redir=http://www.freecreditreport.com/pm/default.aspx?sc=668072%26hmpgID=62%26bcd=JunestepsfooterNO62>See yours in just 2 easy steps!

  [quote][b]

plus2s

Joined: 30 Nov 2006
Posts: 65
Location: NEW ZEALAND

Posted: Tue Jun 09, 2009 7:10 pm Post subject: A-2200 oil leak

Hi Bob

  

 That's interesting - as you say - is it an old wives tail - I believe Jabiru and Lycoming still recomend straight oil initially. I believed the reason was that the friction reducing additives  would glaze the bores before the rings were bedded in.  I'm certainly no expert on oils, but have had a good result with aviation multi grade with our variations of temperature here. And of course we could start another discussion on the best way to break in a new engine ???

  

 Regards

 Keith



--- On Wed, 10/6/09, BobsV35B(at)aol.com <BobsV35B(at)aol.com> wrote:



  	  Quote: 	
		  

From: BobsV35B(at)aol.com <BobsV35B(at)aol.com>

Subject: Re: Re: A-2200 oil leak

To: jabiruengine-list(at)matronics.com

Received: Wednesday, 10 June, 2009, 2:29 PM



  Good Evening Keith,

  

 Just out of curiosity, why do you want to use a different oil for break in than you do for normal use?

  

 Following the recommendation of a local Boutique engine shop owner, I have broken in my last three engines using multigrade aviation oil. Seemed to work just fine. They all ran good, broke in fast and seem to be doing just fine. The rings were fully seated in way less than five hours. The first one I broke in that way was retired after running eighteen hundred hours without a cylinder being pulled or any major component needing service.  I think the old mineral oil idea is just an ancient Old Wive's Tale!

  

 Happy Skies,

  

 Old Bob

  

  In a message dated 6/9/2009 9:00:08 P.M. Central Daylight Time, kpickford(at)xtra.co.nz writes:

  	  Quote: 	
		       Hi Chris

  

 Only other thought at this stage is don't hurry to change from the straight (running in) oil if the oil burn has not settled - we have one motor done 42 hours and haven't changed to the multi grade yet.

  

 Regards

 Keith



	


 

  A Good Credit Score is 700 or Above.ol?redir=http://www.freecreditreport.com/pm/default.aspx?sc=668072%26hmpgID=62%26bcd=JunestepsfooterNO62>See yours in just 2 easy steps!

 	  Quote: 	
		  



ist" target=_blank rel=nofollow>http://www.matronics.com/Navigator?JabiruEngine-List

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  [quote][b]

BobsV35B(at)aol.com
Guest

Posted: Tue Jun 09, 2009 7:42 pm Post subject: A-2200 oil leak

Agreed Keith, 

  

 Most shops are still recommending a "break in" oil, but many top shops have  switched over to recommending using multigrade. I was an early adopter and have  been very happy. 

  

 I did follow the recommendation to fly it hard right away. Seventy-five  percent or higher with particular effort to keep cylinder pressures  high.. 

  

 I spent many hours as a young aviator slow timing engines. I now believe  that was a major waste of time and I do not think the engines ever ran as good  as do those that we break in hard and early. The slow time and heavy oils may  have been needed fifty to sixty years ago when fits and finish were not as good  as they are today. 

  

 My last two certificated engines I even broke in using lean of peak  mixtures. That is a bit trickier because you have to be sure the mixture  distribution to every cylinder is extremely accurate and well balanced, but it  does work if all the bases are covered. 

  

 Unfortunately, I know of no way to do that with a Jabiru.  I broke in  a 3300 last year, but just used the mixture as it came from the factory. We did  run it hard though and used multi grade oil.  In an effort to get it ready  for Sun and Fun, I flew the thing 24 hours in three days! Our son and his  daughter flew off the rest of the time in a couple of days before taking it to  the show.

  

 Happy Skies,

  

 Old Bob

  

  In a message dated 6/9/2009 10:10:17 P.M. Central Daylight Time,  kpickford(at)xtra.co.nz writes:

  	  Quote: 	
		                               Hi Bob

          

         That's interesting - as you say - is it an old wives tail - I          believe Jabiru and Lycoming still recommend straight oil initially. I          believed the reason was that the friction reducing additives  would          glaze the bores before the rings were bedded in.  I'm certainly no          expert on oils, but have had a good result with aviation multi grade          with our variations of temperature here. And of course we could start          another discussion on the best way to break in a new engine ???

          

         Regards

         Keith



--- On Wed, 10/6/09, BobsV35B(at)aol.com          <BobsV35B(at)aol.com> wrote:



          	  Quote: 	
		  

From:            BobsV35B(at)aol.com <BobsV35B(at)aol.com>

Subject: Re:            Re: A-2200 oil leak

To:            jabiruengine-list(at)matronics.com

Received: Wednesday, 10 June, 2009,            2:29 PM



                      Good Evening Keith,

            

           Just out of curiosity, why do you want to use a different oil for            break in than you do for normal use?

            

           Following the recommendation of a local Boutique engine shop            owner, I have broken in my last three engines using multigrade            aviation oil. Seemed to work just fine. They all ran good, broke in            fast and seem to be doing just fine. The rings were fully seated in            way less than five hours. The first one I broke in that way was            retired after running eighteen hundred hours without a cylinder being            pulled or any major component needing service.  I think the            old mineral oil idea is just an ancient Old Wive's Tale!

            

           Happy Skies,

            

           Old Bob

            

                      In a message dated 6/9/2009 9:00:08 P.M. Central Daylight Time,            kpickford(at)xtra.co.nz writes:

            	  Quote: 	
		                                                                                 Hi Chris

                    

                   Only other thought at this stage is don't hurry to change                    from the straight (running in) oil if the oil burn has not                    settled - we have one motor done 42 hours and haven't changed                    to the multi grade yet.

                    

                   Regards

                   Keith



	


           

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