How do you set the ignition timing for a 1991 camaro rs V6 3.1. What marks to line up. The distributor as ben removed from the car. And on the crankshaft pulley there are 3 markes 1 big and 2 small markes
First have someone hand turn the crank with a socket (easier with all plugs out!). Put your finger on the number 1 plug hole as the motor is turned, you will feel the compression. Now remove your finger and insert a screwdriver into the hole and turn till its sticking out the farthest. The timing mark on the harmonic balance should be at the top. You are now set up at TDC! Put the distributor in pointing to fire the #1 plug!