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larry(at)macsmachine.com
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 Posted: Thu Jun 03, 2010 5:40 am Post subject: Flying on the edge of wetness |
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Hi Guys,
I fly mostly good weather, but there’s been a few times I’ve had to fly
thru light showers to get home. The greater concern is getting into too
much rain. I’d think this was possible, but a few of our Chapter 75 have
flown in a “car wash” type rain that put them on the gages for a few
minutes. Does anyone know the limits of the ignition system wires and
spark plugs? I fly the Stratus Subaru in my 601 and am just now looking
at my plugs and wires and wondering if there’s much difference between
wet aircraft plugs and mine. Anyone knowledgeable?
Larry McFarland 601HDS at www.macsmachine.com
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Afterfxllc(at)aol.com
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| Posted: Thu Jun 03, 2010 7:09 am Post subject: Flying on the edge of wetness |
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Larry,
I wouldn't fly any automotive type engine thru moisture as it will produce steam and that might cause your coils to stop working. The difference (as you are probably aware of) between a auto conversion and an aircraft engine is that the spark voltage is much higher in an auto type ignition.
Jeff
In a message dated 6/3/2010 9:41:43 A.M. Eastern Daylight Time, larry(at)macsmachine.com writes:
| Quote: | --> Zenith-List message posted by: Larry McFarland <larry(at)macsmachine.com>
Hi Guys,
I fly mostly good weather, but there’s been a few times I’ve had to fly
thru light showers to get home. The greater concern is getting into too
much rain. I’d think this was possible, but a few of our Chapter 75 have
flown in a “car wash” type rain that put them on the gages for a few
minutes. Does anyone know the limits of the ignition system wires and
spark plugs? I fly the Stratus Subaru in my 601 and am just now looking
at my plugs and wires and wondering if there’s much difference between
wet aircraft plugs and mine. Anyone knowledgeable?
Larry McFarland 601HDS at ===============================================
_-= the ties Day ================================================ - MATRONICS WEB FORUMS ================================================ - List Contribution Web Site sp; ===================================================
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entecrj(at)sbcglobal.net
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| Posted: Thu Jun 03, 2010 8:32 am Post subject: Flying on the edge of wetness |
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I used to run Chrysler 413 and Olds 350 V-8's on irrigation systems.
The throttles were set at 2700 rpm and left to run 24/7 for several weeks, even thru rain storms.
We just made sure we had a good boot seal on the plug and dist. cap.
The only engine that gave me problems was a 605-M&M, it had a mag, would short out in a heavy fog.
Russell
[quote]
I wouldn't fly any automotive type engine thru moisture as it will produce steam and that might cause your coils to stop working. The difference (as you are probably aware of) between a auto conversion and an aircraft engine is that the spark voltage is much higher in an auto type ignition.
Jeff
[b]
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paulrod36(at)msn.com
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| Posted: Thu Jun 03, 2010 9:56 am Post subject: Flying on the edge of wetness |
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<?xml:namespace prefix="v" /><?xml:namespace prefix="o" /><![endif]--> Larry, I wouldn't worry too much about it. Water may be the enemy of an engine, but if you have good boot seals on the plugs, your distributor wire connections are all well sealed, and your distributor cap is sealed to the body, you shouldn't have a problem. Engines have been run under water, with just intake and exhaust snorkels poking out. Just look for possible places to short out, and seal them with silicone goop. Also, remember that your engine will boil off any spray that gets in, and, even if you lose a cylinder, it will come back pretty quickly due to engine heat.
If you want to do a test, you might have somebody spray a hose into your prop, but only at LOW rpm. Water can eat a prop's leading edge at higher speeds.
Regards, Paul R
[quote] ---
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n801bh(at)netzero.com
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| Posted: Thu Jun 03, 2010 4:04 pm Post subject: Flying on the edge of wetness |
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I fly my Zenith 801 with a auto engine conversion through rain every time I can I love flying in it, makes for a smooth flight. It is a perfect way to wash it, to remove all the bugs and the rain is soft water so NO water spots !!
I do have a very tight ignition system to prevent any moisture from getting into critical areas and I have flown through rain that was pretty darn heavy. YMMV............ As for the idea of high voltage creating steam,,,,,,,,,,,,,,,,,, Geez
Ben Haas
N801BH
www.haaspowerair.com
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Afterfxllc(at)aol.com
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| Posted: Fri Jun 04, 2010 7:38 am Post subject: Flying on the edge of wetness |
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Ben you need to read before flaming GEEZ I said steam (from the hot engine) could cause the coils to stop working. I never said high voltage causes steam but since they are a higher voltage the are more sensitive to moisture. Sorry I didn't clarify it in a way you would understand.
And if anyone has a warp drive without the nickel edges I wouldn't fly thru rain as it will eat the tips up pretty fast.
Jeff
In a message dated 6/3/2010 8:05:33 P.M. Eastern Daylight Time, n801bh(at)netzero.com writes:
| Quote: |
I fly my Zenith 801 with a auto engine conversion through rain every time I can I love flying in it, makes for a smooth flight. It is a perfect way to wash it, to remove all the bugs and the rain is soft water so NO water spots !!
I do have a very tight ignition system to prevent any moisture from getting into critical areas and I have flown through rain that was pretty darn heavy. YMMV............ As for the idea of high voltage creating steam,,,,,,,,,,,,,,,,,, Geez
Ben Haas
N801BH
www.haaspowerair.com
---------- Original Message ----------
From: Afterfxllc(at)aol.com
To: zenith-list(at)matronics.com
Subject: Re: Flying on the edge of wetness
Date: Thu, 3 Jun 2010 11:08:38 EDT
Larry,
I wouldn't fly any automotive type engine thru moisture as it will produce steam and that might cause your coils to stop working. The difference (as you are probably aware of) between a auto conversion and an aircraft engine is that the spark voltage is much higher in an auto type ignition.
Jeff
In a message dated 6/3/2010 9:41:43 A.M. Eastern Daylight Time, larry(at)macsmachine.com writes:
| Quote: | --> Zenith-List message posted by: Larry McFarland <larry(at)macsmachine.com>
Hi Guys,
I fly mostly good weather, but theres been a few times Ive had to fly
thru light showers to get home. The greater concern is getting into too
much rain. Id think this was possible, but a few of our Chapter 75 have
flown in a car wash type rain that put them on the gages for a few
minutes. Does anyone know the limits of the ignition system wires and
spark plugs? I fly the Stratus Subaru in my 601 and am just now looking
at my plugs and wires and wondering if theres much difference between
wet aircraft plugs and mine. Anyone knowledgeable?
Larry McFarland 601HDS at ===============================================
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