crabber5010
New member
"After about 20 minutes of run
"After about 20 minutes of running above 4000 RPM a continuous alarm sounds and the engine rPM's drop to idle. No indicator lights come on. I turn the ignition off and alarm goes off and engine starts and runs fine for another 20 minutes. Will run all day long at idle or below 3500 RPM.
Replaced O2 sensor, Racor filters and seperators.
Shop manual trouble shoot points toward overheat or low oil pressure.
Anyone have idea or had similar problem?"
"After about 20 minutes of running above 4000 RPM a continuous alarm sounds and the engine rPM's drop to idle. No indicator lights come on. I turn the ignition off and alarm goes off and engine starts and runs fine for another 20 minutes. Will run all day long at idle or below 3500 RPM.
Replaced O2 sensor, Racor filters and seperators.
Shop manual trouble shoot points toward overheat or low oil pressure.
Anyone have idea or had similar problem?"