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Old 05-29-2005 | 02:47 PM
  #237  
Dean in Milwaukee
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From: milwaukee, WI
Default RE: GMS Engine Tuning Problem

Andy, thanks for the very kind offer, but it may prove unneeded:

update!


I resealed the carb using rtv, got to the field and noticed no improvement.

Flew it a few times, adjusted more, but just not good. Then it dawned on me, the fuel filter.

I had swapped in a new cheapy disposable fuel filter when I put this plane together and now it was about the only thing left untouched, so off it came and replaced with tubing.

I immedietely knew it was improved, and had to lean out the idle jet a bit and the main a whole lot! Pointing the nose up no longer made much difference at all, and I was able to get way more revs on the ground now. Airborne, it was a whole new motor, running far better than ever before, ( hover to outside loop back to hover without going anywhere is fun! ), but still a bit soft in the midrange. That might be just a fine tuning on the jetting issue though, I say might because I landed a bit hard when I came down to adjust and broke my only prop , so fine tuning efforts are going to have to wait a bit.

I might get another airborne opportunity this wensday, but this looks like the filter might have been the problem the whole time. Aargh!!! [:'(]

Dean in Milwaukee