engine problem

Assuming you did get the cam marks lined up, there is not just ONE TDC for each cylinder, but in fact TWO.

Take #1 cyl as an example. The first time that the pulley mark comes around, #1 piston is at its high point and the exhaust valve is open to let the burned gases out.

The NEXT complete revolution of the pulley brings the mark up again, but this time #1 piston is completing the compression stroke and both Intake and Exhaust valves must be closed.

Go thru it again. Focus on #1 valves. Turn the pulley and watch for the #1 rockers to "back off" at TDC. This would be the correct TDC to adjust #1 valves.

Hard to explain; hope that was clear.

So if i understand this correct there are 2 TDC positions? As a novice i'm told to also line up the dizzy at the right mark(cyl 1), does that automaticly set up the right TDC?

just wondering, Roger

the dizzy can just be turned or plug wires swapped around.

You have to follow the motion of the valves to determine whether TDC is an exhaust stroke or a compression/firing stroke.

Interesting info, could make a huge difference on my "hesitation" problem posted earlier. Won't find that one in the books (at least not the one i have)

Thanks Roger