Hi guys...

Summary: I'm finishing a cam install, adjusting valves stage.... timing cover is OFF....

With the dots LINED UP, my car is NOT at #1 TDC! With the dots LINED UP on my stock timing set w/ a HOTCAM, I am at #6 TDC, NOT #1 TDC! #1 TDC occurs with both dots facing straight up (i.e. where it should be #6 TDC).

WTF is going on?!.... I cannot possibly see how I could do this wrong. I lined up the dots, pulled out the cam, put in the new cam, lined the dots back up (did not move crank).

HELP! I'm so confused. I adjusted the valves, but I haven't a clue why mine don't line up right.

-Michael

 

With the dots together it is supposed to be at #6 TDC. You are fine. Both dots at 12 is #1 TDC.

 

Shoebox,

THANKYOU THANKYOU! So why is this differentiated from a Gen1 SBC? Isn't lined-up usually #1 TDC?

What about on an aftermarket timing set?

Thanks,

Michael

 

I think they are all the same from what I remember about the old SBCs. It just depends on how the cam is indexed to the gear.