REFLECTOR: Exhaust systems

[Ronnie Brown]

Something doesn't sound right.  If your engine cut off or stumbled when
applying full power, then it is running too lean.  It sounds like your EGT's
aren't reading correctly?

Perhaps get an A/P or someone familiar with aircraft engines to help out.
You can ruin your engine by running it too lean at full power - that is when
detonation occurs and it can literally destroy your heads and pistons.

Ronnie


----- Original Message -----
From: "John Dibble" <aminetech@dixie-net.com>
To: <reflector@tvbf.org>
Sent: Monday, July 14, 2003 3:42 PM
Subject: Re: REFLECTOR: Exhaust systems


| Steve,
| My airport is 1020' and the altimeter setting was 30.2 today.  During taxi
I leaned it
| with the mixture about 2/3 out which seemed like a lot.  The EGT got up to
930 F
| druing taxi.  I did the mag check at 1150 rpm and the EI did run stronger
than the mag
| like it should.  When I gave it full throttle for take-off, it cut out so
I richened
| the mixture to 1/3 out.  Do I need to add throttle more slowly?
| My fuel pressure normally runs 8-9 psig.  Today it fluctuated in the 11-20
psig
| range.  Has anyone seen the fuel pressure run that high?
|
| John
|
| steve korney wrote:
|
| > John...
| >
| > In that case your running way to rich...You should see temps of about
1250
| > to 1300 (f) on take-off...
| > Maybe that's the reason it stumbles so much on run-up...Lean it
out...Keep
| > the temps above 1150 on the ground or you won't vaporize the lead in the
| > fuel and it will foul your plugs...
| >
| > Best... Steve
| >
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