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                           Glasair-List Digest Archive
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                     Total Messages Posted Thu 09/21/06: 1
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Today's Message Index:
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     1. 11:10 AM - Re: Injector Servo  (Craymondw@aol.com)
 
 
 
________________________________  Message 1  _____________________________________


Time: 11:10:46 AM PST US
From: Craymondw@aol.com
Subject: Glasair-List: Re: Injector Servo

Last month I reported a 50% loss of power on take off and that full power 
didn't return until on an emergency base leg in a Glasair 2S with an I.O 360 200

hp Lycoming. I mentioned the engine had new Slick mags, and new fuel and air 
filters. I use fine wire plugs that had been recently cleaned and gapped. The 
timing was set. Compression was 80/80 on all cylinders. After my engine problem

I rechecked everything and installed a brand new set of fine wire plugs. But 
the engine still have a rough rich idle. I leaned the heck out of the idle 
mixture control and it helped a little. But I had difficulty setting the mixture

control at altitude. Also, the EGT would jump up going into a slight decent 
losing only a thousand feet. And the engine would still occasionally run rich on

idle. I also noticed the mixture control would stiffen up. Well, folks the 
problem was found. When I phoned an injector over haul facility, they asked me

what kind of air filter I used. It appears an air filter manufacture has been 
using excessive coatings on their filters and the stuff gets into the AIR side

of the servo and screws everything up with engines running way over rich. When

he informed me of that a light went on and I remembered my new element having 
much more than usual of the coating. In the future, before installing a new 
element, I will press it into dry rags to soak up the excessive coating.