celstar

celstar

Well Known Member
Ok, just out of a very good and no problem annual. After the annual done by a A&P I have been flying a bit and thinking that I have some backfire on deceleration coming in from flying around. More then I remember and has been to the point of being able to feel the plane miss or hesitate a bit but only at low rpm flying. So we changed my plugs out both top and bottom, top EI Lightspeed 3 and bottom mag. Took it back up and seemed to be back to normal and great. Put another 1 hour or more on it now and seems to have come back, I then started looking at CHT and EGT and noticed in cruise my number #1 cylinder's EGT and CHT are 100 degrees or more lower then the rest. Any ideas?
 
Check for an induction leak - if that cylinder is running very lean it would explain both the low temps and the backfiring.
 
Low CHT and EGT

I thought that if it was a induction leak I would have low CHT but higher EGT?


airguy said:
Check for an induction leak - if that cylinder is running very lean it would explain both the low temps and the backfiring.
Click to expand...
 
All depends on how bad the leak is.

Get enough air in there, and it will not fire at all.
 
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