i have a 72 521 and i blew the head gasket. i put a new one in made sure to mare the chain gear.

now it will not start???

i moved the chain a tooth in each direction wich only made it worse???

never took the distributor off. when piston 1 is at top dead center the distributor is at 11 and 28 and the crank pully is on the last mark???

im at a loss any ideas will help.

just at a quick glance it seems all the timing should be right, so any chance you forgot something else in the process? something perhaps not timing related?

iv taken it apart like 4 times and nothing that i can tell is missing. i even drug it behind a truck and tried to pop start it.

OKAY. what if my cam is 180 off? i dont know how it could have happened but i did take it off to put the chain back on the gear. can the cam go back on 180 off without the chain moving and the crank? im at top dead center on the 1st cylender should my valves be open or closed? right now one is open and cylender 4 both are closed?

here are some picks. the pick with the gear is cyl #1

If the cylinder is truly at TDC, both valves will be closed. Judging by the pics you posted and the descriptions of those pictures, it appears you are actually at TDC of the #4 cylinder. Turn the crank one full revolution until the timing marks are lined up again. Both lobes for the #1 cylinder should both be pointing up at an angle. Then set up your distributor to #1 and you should be good to go.

Watch this it should answer all your questions. Hainz the L motor God.

http://www.guba.com/watch/3000024223

I bet the link nazzi removes the link!