Thread: Limited RPMs
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Old 09-02-2018, 03:29 PM
djmorris djmorris is offline
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Question Limited RPMs

I'm buying a 1975 C&C 30 with an Atomic 4 and about 5 days, 2 Great Lakes, and one major canal between her and home. The surveyor discovered she'd produce no horsepower in forward. This was traced to a now-replaced bolt in the clutch. The engine starts up easily and runs smoothly, but seems to produce only enough revs to get up to about 4 kts in calm conditions (there's no tach). Only the bottom one-fifth of the travel in the throttle control arm has any effect on the engine. The current owner says there's no issue with the control linkage. During the sea trial, he pulled the lead off cylinder 1, which stalled the engine. He suggested this indicated the cylinder was firing properly (otherwise the engine would run), but I notice elsewhere in the forum the A4s can run on two cylinders. Any thoughts on the seemingly limited revs/kts and/or the engine needing all cylinders, seemingly, to keep runnin would be much appreciated.
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