[edgemar]

So i sandblasted and powder coated the outside of my 93 e36 valve cover. I put sealant in the appropriate areas, reinstalled it and it leaks. Here is my plan:

I'm getting a 1/4 torque wrench to re-torque the 15 bolts in a criss cross pattern.

Do you think it would be good to resurface the mating surface of the magnesium valve cover? Do they warp over time? Also is there a chance the powder coating warped it?

Any advice would be very welcome. I want to do this right the 2nd time.

Thx!

PS - Sorry to bring this up in the Porsche affiliated forum.... the bmw ones suck.