Posted by Mr. Farmall A on August 03, 2014 at 17:56:46 from (68.32.185.8):
In Reply to: C113 head studs posted by Red Dave on August 03, 2014 at 09:44:38:
Red Dave said: (quoted from post at 09:44:38 08/03/14) I'm not sure I understand how new Head Studs would correct your problem. Unless they are visibly damaged, or somebody along the way replaced them with something unsuitable, I would tend to look elsewhere for the problem.
Are you using sealer on the new gaskets, torquing to 80 ft/lbs and re-torquing after the engine is run a bit and warmed up?
Is the deck of the block flat?
I used copper spray sealer which the head gasket instructions said to use, however their are mixed reviews about copper HG sealer on the net. Some guys say the copper sealer is failure prone and that either using silver paint or installing the head gasket dry is better.Torqued the head nuts to 80Lb, then ran the engine to warm up the head, then retorqued the nuts to 80 Lbs.
One of the studs is mismatching from the others, just a tad shorter. Looks like the old owner had taken the head off and replaced a stud for some reason. Maybe overtighten the head nuts stripping the one stud which was why it was replaced, and stretched the others?
I don't know if the deck of the block is flat but I will check it. If that needs planing, would that mean a complete engine tear down?
I have also replaced head gasket on my small block Chevy V8 which uses shim head gaskets without sealer and no problems with that after 7 years running 9.5:1 CR. Which has me confused why a much lower compression motor with a thicker gasket keeps blowing.
This post was edited by Mr. Farmall A at 18:03:52 08/03/14.
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