Today's Message Index:
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1. 10:07 AM - a little rough, a little miss @ low RPM ()
2. 06:33 PM - Re: a little rough, a little miss @ low RPM (JEHayward@aol.com)
Message 1
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| Subject: | a little rough, a little miss @ low RPM |
--> KR-List message posted by: <jeffyork40@qx.net>
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@qx.net
Message 2
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| Subject: | Re: a little rough, a little miss @ low RPM |
--> KR-List message posted by: JEHayward@aol.com
In a message dated 3/26/2006 11:07:52 AM Mountain Standard Time,
jeffyork40@qx.net writes:
> 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
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