8 degrees before top dead centre
there will be a timing mark on the harmonic balancer. and a timing tab on the timing chain cover. point your timing light at the timing tab and you should see the timing mark on balancer. if not timing is way out.markstang.
The timing mark is one the Harmonic balancer and the pointer is attached to the timing cover. Roll the motor over to the timing mark, the be sure and mark the number one plug {marked on the intake manifold} the position of the rotor pointer on the distributer.
harmonic balancer
If you look at the harmonic balance you will see on the front of it a medium size circle. That will be your timing mark.
It is located on the harmonic balancer.
on the harmonic balancer.
on the timing cover above the harmonic balancer leon
The timing mark is a line that goes across the harmonic balancer that should line up with the mark on the timing chain cover. It is on the drivers side on the bottom of the timing cover.
I had the same prob. with my 98 Tahoe it has a 350 but if your motor is computerized and is vortec im sure its the same. the computer times it for you.
buy a timing light. clip it to the #1 plug wire. loosen the bolt on the distibutor. Unplug the timing advance. start the engine Point it to the harmonic balancer and turn the distributer until the timing mark on the timing cover lines up with the mark on the harmonic balancer. Tighten the distibutor bolt. plug in the timing advance.
in the motor
There is a mark on the timing chain cover behind the harmonic balancer(behind the crank pulley). The harmonic balancer also has a slot cut in it so that you can line the crank up with the mark on the timing cover. The mark on the timing cover should sit at the 2 o'clock position or the 12 o'clock position. My 96 Chevy 305 is at the 2 o'clock position.