----- Original Message -----
Sent: Tuesday, February 08, 2005 12:00
AM
Subject: [FlyRotary] Re: Bad day at the
airport
Hi, Ed...
I considered that as a possibility...no, more
like a probablility....but I was thinking that when I reduced the throttle
the engine rpm's would have gotten back into the area where it was
programmed correctly (or at least closer to correct). I throttled all
the way back to 1/4 throttle, and then back to 1/2 throttle, and no
improvement. It was difficult to reduce the throttle on an already "not
climbing" aircraft, but at that point, I was willing to try anything. Could
not get it to go above 2000 rpm's, and it was running VERY rough. Paul
Conner
Paul, Trying to be constructive here, 50%+i of homebuilt engine failures
are caused by fuel delivery problems. (FAA crash stats) Putting on my
mechanics hat from the old days, START WITH THE SIMPLEST POSSIBLE PROBLEM
FIRST. Check your plugs to see if you had a rich or lean failure. If you had a
lean condition the leading plugs at least will be clean as can be. Rich the
opposite. I'm betting on lean. Check your fuel filters etc. Be sure your vents
are clear. Only after you are SURE that you don't have a simple problem go on
to the others. I must relate a problem I had happen once despite years of
experience. I was tuning a small two stroke for a kid I knew. He drove it into
my garage and we proceeded to do a "full on" tuneup. We changed and replaced
the points, (yea that long ago) did timing, fuel filters the whole enchalada.
When we finished the damm thing would not start! After about an hour of
fiddling including doing almost everything over I got simple and checked the
spark with the BRAND NEW SPARKPLUG. Nothing, nada. I got another plug and it
fired first kick! The plug didn't have the internal conductor inserted on the
assembly line. It looked perfect until I cut it apart. Long-winded moral to
the story, cover all the bases. You may find the problem you had might have
happened in any Cessna. Glad you didn't hurt your self or the plane. Just burn
the underware.
Bill Jepson
Thanks, Bill....My next step is to pull the cowling and check plugs,
filters, etc. I will inspect the plugs to see what condition they are
in. That can tell me a lot. I wish I hadn't re-started the engine to taxi back
to the hangar. Running the engine after the problem might have covered up the
problem, as it seemed to be running better on the taxi trip back to the
hangar. I'll report back with my findings. Take care, and many
thanks to everyone for their input and suggestions. Paul, I'd rather be
flying, Conner
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