View single post by Jensenman
 Posted: 04-07-2009 01:22 pm
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Jensenman

 

Joined: 04-14-2005
Location: Columbia, South Carolina USA
Posts: 156
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 Has anyone considered or tried making an .010 aluminum cam tower gasket and using 518 on each side of that? That would eliminate the gasket crush problem. It's not unprecedented; Datsuns used to have 'head savers' which were steel shims for the cam towers, used when the head was resurfaced too much or the valve tips were too high.

On valve clearances: I learned the hard way many years ago on motorcycles to always set them a little loose (an extra .001-.002). As the valve contacts the seat it will slowly wear and 'grow' out of the head, effectively closing the clearances and this leads to burnt valves, particularly on the exhaust side.

Last edited on 04-07-2009 08:19 pm by Jensenman