Posted by Andy Martin on December 31, 2007 at 06:08:35 from (63.99.111.177):
In Reply to: Re: Water posted by Kristof on December 31, 2007 at 05:42:30:
Scratches won't be your problem. Sealers like paint might help but are not necessary. The head gasket will deform to match the surface. You have some other problem.
How good was the shop that milled the head? They may have screwed it up. You should check it with a flat edge, only because you are having a persistent problem. A machinist's straight edge is good but you should be able to detect light under a carpenter's framing square if the square is pretty straight.
Check the bolts carefully and see if the threads look like they are damaged at the bottom from bottoming out. If your head was milled quite a bit it will be thinner, causing the bolts to go deeper in their holes. They may be hitting rusted up threads. This can be fixed by grinding off the ends of the bolts or by adding washers (trimmed to fit).
Did you start the engine and get it good and hot, then retorque the head?
Did you check your torque wrench? I have a broken one I loan out. It seems to work OK but consistently reads low. It was OK when I first loaned it out, so I keep it for a loaner.
I've never had a warped block so that is what I would check last.
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