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    OMC 3.0L cutting-out after warm up

    I just got the new head on it and the flywheel tightened up (see previous threads). It doesn't idle as smoothly as I'd like, but it maybe normal a push-rod and carbed 4-cyclinder. I idled out of the harbor fine for about 15 minutes. I took it up to 35 for about 5 minutes and slowed down to 5...
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    3.0L - Need to replace Rocker Stud and Push Rod

    I think I overtightened a rocker or tightened it at the wrong cam timing, unless the valve froze up for some reason. I just replaced the head about 10 hours (run-time) ago. Last time I took it out I had a load noise from the top end and found that the first rocker tip actually fell off the...
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    OMC 3.0L - Flywheel Loose! Now what to check?

    I bought a 91 ChrisCraft 17' Bowrider with 3.0L OMC Cobra sterndrive as my first boat last summer. I've taken it out about 3-4 times. It has always been very rough at idle, but last time I took it out it was much worse and sounded like a diesel engine with no oil. I pulled the motor a couple...
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