Re: fresh rebuild Super C, leaking headgasket

Posted by Smith1000 on April 17, 2007 at 16:20:26 from (70.41.100.224):

In Reply to: fresh rebuild Super C, leaking headgasket posted by Wheaty on April 17, 2007 at 07:21:15:

I did the head gasket on a 460D last year. Someone on this board said to get a Victor gasket which I did. Also used Copper Sealant spray on both sides of the gasket. Someone also said to check the bolt length to make sure they do not bottom out-especially if the head is shaved. I used thicker washers on the head bolts when I put it back together. No leaks so far. Seems good and tight.

I did the head gaskets on a Nissan truck recently which has an aluminum head. Interesting, the guy at the head/machine shop said you can use sealer on a cast iron head bolting down to cast iron block to create a tight seal. He said no sealer for an aluminum head bolting to a cast iron block. There is graphite on the gasket and there should be movement to allow for varying expansion rates (aluminum v. cast iron). I have also heard of using aluminum paint instead of copper sealer for M's. I could not find any aluminum paint, but the copper sealer is made for head gaskets. Hopefully, the re-torque will work.

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