Vibration / Rear Main Seal leak on brand new engine.

[1980PontiacWagon]

Distributor 180* out maybe?

 

[Chillin014]

lol okay I got schooled today by a friend and now the problem has been solved. What I didnt realize (or consider) was that the oil pump can be rotated independent of the camshaft. Maybe that's what everyone has meant by "check the rotor at TDC" but I thought there was only 2 different possible ways to mount the distributor. Anyway, we lined up the oil pump and then installed the distributor and it fired up immediately.

thank you everyone for the help.

 

[Doober]

Sweet :awesome: Good to hear of another SBC alive & well.

 

[t5montecarlo]

Another happy ending!!!!!!

You still need to determine if the damper matches the timing cover so you can time it properly.