Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
No, not keyway to keyway. There should be three oval holes and one round hole in the cam gear. The round hole is the alignment mark. It should line up with a small notch in the top of the chain dampner.
the crank gear should have a tiny dimple in it, and it should line up with a small notch in the bottom of the chain dampner.
If you look at the picture below, that puts the cam keyway at about 3 o'clock and the crank keyway at about 10:30 or 11 o'clock
need help on a 1999 Chevy K3500 pickup with a 7.4 L