Compression Test
Trying to isolate a intermittent miss on my 30. The miss is sort of like a 'gasp' from the carb (Zenith).
Fuel is clean, Zenith filter clean, good fuel flow, the 'gasp' (for lack of a better description) is intermittent and only happens under load like driving up slight grades and hills. Of course I am unable to duplicate this problem idling in the driveway.
Took compression readings today and they were in the mid 60's 63-68, which according to the Model A Mechanics guide is not all that good. Did the test with hot engine, plugs out, throttle wide open. Plugs all looked the same, some carbon and tips slightly white.
Guess I am looking at a tired engine perhaps?
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