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jeffyork40(at)qx.net
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 Posted: Sun Mar 26, 2006 10:07 am Post subject: a little rough, a little miss @ low RPM |
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My Great Plaines 2180 VW has a little miss at low RPM 1100 or less. What I might call a bit of a stumble miss but very slight. By 1500 RPM or better, everything seems fine.
It seems to me that it has always done this but I will ask for advice giving you as much information as I can.
Running a single mag ignition, autolite automotive plugs ( they are the substitute for the Bosch WA 8 plugs GPAS calls for) narrow gap .028 per Steve Bennets book., Zenith Carb, K&N cone filter.
As I mentioned, it seems to me it has always done this but I am wondering if some day on final , I go to pull the throttle back and it quits on me. So I will also mention that I am burning off some older Av gas, many months old as the plane has been under various stages of getting it back together.
Also, just a little note of interest. I just had Jet Hot ceramic coat my 4 into one exhaust. They do it inside and out verses others who only do the outside of the exhaust.
Anyway, since the exhaust coating, I can now peg the tach past 3500 RPM verses previously getting 3200 RPM and maybe on a rare perfect day getting around 3400 RPM. I mention the Jet Coating since that is the only thing I did to the engine and then getting a sudden increase in RPM. Yes the days right now are cooler but the engine has 56 hours and has run on many cool days before.
Jeff York
Lexington, KY.
KR-2 Flying
N839BG
Home page http://web.qx.net/jeffyork40/
My KR-2 http://web.qx.net/jeffyork40/Airplane/ to see my KR-2
Email jeffyork40(at)qx.net
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JEHayward(at)aol.com
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| Posted: Sun Mar 26, 2006 6:33 pm Post subject: a little rough, a little miss @ low RPM |
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In a message dated 3/26/2006 11:07:52 AM Mountain Standard Time,
jeffyork40(at)qx.net writes:
| Quote: | My Great Plaines 2180 VW has a little miss at low RPM 1100 or less. What I
might call a bit of a stumble miss but very slight. By 1500 RPM or better,
everything seems fine.
|
Jeff, you'll probably get much more help over on the
KRNet list than here.... hardly anything ever shows
up here.
Jim Hayward
Rapid City, SD
| | - The Matronics KR-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?KR-List |
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