Quote:
Originally Posted by JohnW
If the rods and wrist pins have the correct clearance. you will not be able to rock the crank. If an engine is set up correctly, you shold be able to turn the engine with the crank. If it is too tight to turn by hand, something is out of the recommended clearance.
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There is onlyone place the crank will turn without resistance from the pistons. This is at the top of the stroke for 2 and the bottom of the stroke for the other 2. This will be only for a slight instant as the rods rock over before moving the pistons.