Having recent RPM fluctuation.. prop governor issue?
We have an EI digital tach, and it is recently fluctuating up and down ~40RPM when idling and flying. This is a slower fluctuation, not a fast bounce/rise & fall.
Example: set idle to 1,000. It would slowly climb to 1,040 and come back down, or stay there in different cases.
Any ideas? I’ve read it may be P Leads and not the governor, but figured I’d ask here as I’m not an expert.
Comanche 180 - Lycoming O360-A1A - Hartzell 2 blade. Picture attached of governor data plate. Woodward
Thanks in advance
We have an EI digital tach, and it is recently fluctuating up and down ~40RPM when idling and flying. This is a slower fluctuation, not a fast bounce/rise & fall.
Example: set idle to 1,000. It would slowly climb to 1,040 and come back down, or stay there in different cases.
Any ideas? I’ve read it may be P Leads and not the governor, but figured I’d ask here as I’m not an expert.
Comanche 180 - Lycoming O360-A1A - Hartzell 2 blade. Picture attached of governor data plate. Woodward
Thanks in advance
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