Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
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Rotate the crankshaft clockwise (as viewed from the front of the engine, normal rotation) until the camshaft sprocket timing dowel pin holes align with the holes in the timing chain housing.
Set the crankshaft sprocket keyway pointing upwards. Align with the centerline of the cylinder bores. This is the timed position.
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need help on a 1999 Chevy K3500 pickup with a 7.4 L