Today's Message Index:
----------------------
1. 10:04 AM - Re: Engine Cough? (yourtcfg@aol.com)
2. 08:17 PM - Fw: fly in (Donnie Rose)
Message 1
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| Subject: | Re: Engine Cough? |
?After checking the other suggestions, It is probably an adjustment to the pressure
carb.? Try this.? While it is acting?jacking up, manually lean the carb and
see if it clears up.? If it does, it is rich, if not, most likely lean.? There
are two adjustment on the carb.? One for idle mix, the other for "off idle"?
It is probably the off -idle but both will need touched up.? If you have a
manual for the engine it will cover this procedure, if not let me know and I can
walk you through it.? One last thing, make certain the carb heat is not on.?
Sometimes the linkage will allow the carb to pull in hot air and with the temps
rising it could just now be showing up.? If the engine has?had a backfiring
incident recently, if could have bent the little carb heat butterfly doors in
the carb heat box.? I have seen several of these over the years and they too
will let hot air into the carbs causing them to stumble.? Conversely, an exhaust
leak in the?cowling can overheat the ambient air
in there and trick the carb into thinking it is really hot outside and it will
try to compensate by leaning.?jb 360-903-6901
pressure carburetors
-----Original Message-----
From: Matthew J. Hawkins <hawkins@cms.udel.edu>
Sent: Mon, 9 Jul 2007 9:07 am
Subject: Commander-List: Engine Cough?
All-
We're having a minor intermittent problem on the left engine of N2760B. They
are Lycoming G0-480-DIA's. Geared engine with pressure carburetors.
When reducing power, the engine will cough/sputter as soon as it hit's 21" of
manifold pressure. Doesn't quit - just skips and runs a bit rough.
Doesn't happen when increasing power.
All gauge reading in the green - nothing obvious.
About 15 hours on the engines since major overhaul. Did not happen during first
10-12hrs - started during past couple of flights. Won't happen every time - but
about 75% of the time. Just a little disconcerting on final!
Any thoughts?
Matt
********************
Matthew Hawkins
Director, Marine Ops
R/V HUGH R. SHARP
302-645-4341
FAX: 302-645-4006
hawkins@udel.edu
________________________________________________________________________
Message 2
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Donnie Rose
205/492-8444
----- Forwarded Message ----
From: Donnie Rose <aquadiver99@yahoo.com>
Sent: Monday, July 9, 2007 7:30:06 PM
Subject: fly in
Hello fellow Commanders!
I seem to have lost my info, can someone kindly forward the info for the Fly-In
for I plan on attending.
Thank you,
N69PT
Donnie Rose
205/492-8444
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