My son recently purchased a 1980 280z and noticed that the head gasket was bad ( it was blowing some white smoke) so he decided to replace the head gasket>and while it was torn down he decided to replace the timing chain.He set the cam and crank at TDC when installing the new chain and now it wont stay running or idle unless you keep giving it gas.Can anyone help.It ran fine before we changed the chain

 

Moved to 280ZX S130 forums.

Welcome to ZDriver!

There are many chances to make a "woops" that deep in if you aren't following the procedure step by step. More than anything, it sounds like (and is the usual mistake) the distributor drive shaft is a tooth off, making the timing off. Check all the alignments to see where the distributor timing is.

 

How do I make sure the teeth are in the right place ? I hate to sound like a dumb *** but timing is a definite gray area for me

 

Make sure you have the FSM from XenonS130 to set it up correctly