[LS1ow]

Is it possible to time these motors 180* out? After verifying the timing marks were lined up with cyl 1 at TDC, i started to do some investigating.

The cam gear turns 1/2 turn for ever 1 turn of the crank.

Both valves are closed, cyl 1 at TDC, Cam gear mark at 6, crank gear mark at 12. Dowel peg for cam at 3.

And now we start to turn the crank and watch the valves

-At say 9 o'clock(Cam gear) the intake valve has completed its opening and closing cycle, the crank is at 6 completing its Intake Cycle.

-With the Cam at 12, Both valves are closed. Crank is at 12 as well, finishing its compression cycle.

-Cam at 3, the valves are still closed but the exhaust valve is just at the start of its cycle. The Crank is at 6, just finishing its power stroke.

-Cam returns to 6 after finishing the exhaust valve opening and closing, the crank is back at 12, after completing the exhaust stroke.

So going off this info, i have the motor timed at TDC of the start of a new cycle. Not at TDC on the at the end of the compression cycle. Is that were it is supposed to be timed at? or am i correct were its at.