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Triumph TR3 - engines
|"wellseal" was used to seal head gaskets, what can be used today,as "Wellseal"is not available anymore.|
|Hi m goforth:|
If the surfaces of your head and block are in good shape and flat you should only require a light coating of grease on both sides before tightening down in the bolt sequence shown in your manual.
|I have always used Permatex AVIATION Form-A-Gasket (Part No. 3H) available from any auto supply store. It looks like and has the texture of black strap molasses. It comes with a type of brush applicator attached inside the cap. I smear a thin coat of it on each side of the gasket then put in on the studs, put the head into place and tighten down the head nuts.|
When you have to take the head off next time, make sure you get all of the residue off. It can be a bit tough to do, but the stuff is worth the $2 or $3 it costs.
When I did my full resoration 12 years ago, I mentioned to Ken Gillanders of "British Frame and Engine in Temple City, Calif. that I used to blow head gaskets regularly, even though I was re-torquing the nuts at per the manual. He told me I needed nuts like he sells to the TR race drivers. Instead of the nut being 1/2" high with 10 threads (1/2 - 20 UNF) inside, these nuts are 7/8" high and have a full 15 or 16 threads to hold the head on. They have been on for 12 years with one removal to put in exhaust valve seat inserts for un-leaded gas and I've never blown a head gasket during that time (67,000 miles).
Ken is at BFEKENG@aol.com Mention my name.
Don Elliott, Original Owner, 1958 TR3A
This thread was discussed between 30/07/2002 and 01/08/2002
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