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In Reply to: CA Overhaul Problem posted by Dwight on Sunday, July 05, 2009:
Whenever I rebuild a motor, in-house or on a stand, I always turn the crankshaft after installing a part that effects rotation. That way, if there is a problem, I know exactly what part caused the problem. So working backwards, untorque the connecting rods one at a time and see if the motor loosens up. Then untorque the mains to see if that is the problem. If a rod or main is causing lock-up then re-clean the surfaces that hold the bearing and reinstall with plastigage to see if the clearance is within specifications. Check the side clearance of the rods and the end play of the mains. Also check front and rear main seals and ring gap and piston clearance. But again, if you have to pull it down that far to find the problem, do it 1 piston at a time so you know when you've found the troublemaker.
-Leon
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