Rear Main Seal Install

Call that moron back and ask him how you fit the seal when the block has been line honed. Then ask the moron how many engines he has personally assembled that has been lined honed and didn’t fit the gasket. See what he says.

I can tell you I’ve fixed so many of them it’s really insane that stooge doesn’t know better.

That’s why the one piece seal is a bit better. It’s not nearly as sensitive to line honing as the 2 piece seal is.

It doesn’t matter to me if you fit it or not. But this I’m sure of. If your seal is more than .010 proud of the block or cap, when you torque it down it will go out of round.

If you run into the issue of the seal being too proud, put it the cap and block and torque it on and look with your eyes and see if it’s round. The more crush the seal has the more out of round it will go.

If you do that and it’s not out of round, chances are it will seal.

I am not an engine builder, so I have little experience in this area. How much would be typically machined off the caps prior to a line bore?

Engine is in the car, so I can’t see anything with the cap on.