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This is very good advice for every one. Part of my starting check list,
right in with the prime step, was Assure Primer Plunger Locked by
Pulling on it. Also remember (in that moment of panic!) that the primer
can keep an engine running when something has gone awry with the fuel
system.
Percy
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Wednesday, June 28, 2006 7:46 AM
To: [EMAIL PROTECTED]
Cc: [email protected]
Subject: Re: [COUPERS-TECH] RE: Low Power update
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Andy
This is very useful information.
Checking the primer for leaks is high on my list of things to try next
time I get to the plane (hopefully this Saturday morning) Thanks!!
Eliacim
Quoting Andy Anderson <[EMAIL PROTECTED]>:
> ----[Please read http://ercoupers.com/disclaimer.htm before following
any
> advice in this forum.]----
>
>
> Eliacim et all, To add to what Holger Zinke said earlier;
>
> Tonight after repairing my backward fuel cap, I decided to fly for
awhile.
> The engine ran rough at low to mid RPM's but with full power applied,
seemed
> to run up OK. However, it just didn't sound quite right. I did fly
around
> the patch in a tight pattern just in case. When I tried to shut down
using
> the mixture control ( Marvel carb on a C-90), to my surprise, the
engine RPM
> jumped up by about 500 and smoothed out. I tried this several times
with the
> same results. I finally shut it down with the mag switch and called my
> mechanic. Right away he nailed the problem over the phone. I had
failed to
> lock the primer. I then experimented with the primer in various
positions. I
> can create several power problem symptoms with different positions of
the
> primer plunger. If it is "leaking" just a tiny bit, leaning the
mixture
> causes a big RPM increase.
> Andy Anderson 1946 415-D N93609 C-90
>
>
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