Quote:
Originally Posted by sastanley
If the head is off, I would 100% recommend you turn the motor over by hand to observe valves..Also, I would individually inspect each valve while open and closed to make sure there is no build up on the valve or a bad valve seat and make sure it is sealing effectively. A little carbon on the valve can wreak havoc on compression. If a valve has any issue, the time to fix it is while the head is off.
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Will only take about an hour to remove, clean and relap valves. Joe, remember the guy that helped you rebuild the engine in the boat you sold...he should be able to do that in no time. It's a good opportunity with the head off.