P11 problem! Any ideas???

[Blackjack028]

Can anyone help!!?
I have a p11 Primera Camino with a SR18de. Recently replaced o ring on the dizzy where it goes into the head as it was leaking. When I fit the dizzy back on I set it as close to the angle I found it. When I turn it over it starts but runs s*** for bout 20 seconds until it dies. Must be timing right? But I haven't done anything to distrupt timing?
Does anyone have a idea?
I replaced dizzy cap, spark plugs and oil too. All leads are correct
Help greatly appreciated !! Thanks

[PapaSmurf2k3]

Maybe you got it off a tooth when you put it back in? Are you able to check ignition timing? I bet its way out.

Try rotating the distributor fully one way or the other to see if it improves. If you're hard over and it runs better, you know you're off a tooth.

[Dattebayo]

There's an alignment mark you're supposed to match up that you probably didn't. The way the dist gear curves makes it hard to install because you have to kind of twist the unit as you push it in. This is why it probably got off a tooth like was said above...