The crankshaft is located in the bottom of the block just above the oil pan. The lower drive pulley for the fan belts is located on the end of the crankshaft. In the center of this pulley is a 27mm nut that holds the pulley on the crankshaft. To turn the engine by hand, you put a 27mm or 1 1/16 socket wrench on this nut and turn clockwise (facing front of the engine) with a ratchet wrench.

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