REFLECTOR:Rough Rider

[Brian Michalk]

So this only happens after a flight?  When the engine is cool, things behave
properly?

30PSI?  I'm assuming injected?

Things I would look for:
1) possible partial vapor lock.
2) Intake manifold air leak.  Snug up all those bolts.
3) Injector air shroud obstructions.
4) Check all hoses to the fuel servo for cracks/leaks.

Does turning off either magneto make a characteristic change?  Maybe the EI
is doing something strange temperature-wise.  Take out your spark plugs and
read them.  That'll tell you if you are running too lean/rich or show which
cylinder is the culprit, if it is a single cylinder.

What do your per-cylinder EGT's show when this is happening?

 Brian Michalk  <http://www.michalk.com>
Life is what you make of it ... never wish you had done something.
Aviator, experimental aircraft builder, motorcyclist, SCUBA diver
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