Quote:
Originally Posted by green van man
It was 40 years ago and Ive had a lot of sleeps since.
Yes you are right it was 6 ftlb. I did renew the nuts every time I set the tappets, turning the cam but hand with the head off the car made you realised they worked hard for a living so it was new when the job finished. 1/4 UNF if memory serves.
Still have a tobacco tin of shims somwhere in the shed, all thick ones of course. You could shave up to .015 inch off the top of the valve stem in extremis without cutting through the case hardened top of the stem. I had a mate who was a toolmaker and he surface ground the shims for me which was a whole lot easier.
Paul.
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if you get down to needing a shim thinner than 0.075" there is a problem somewhere ! If you find the shims one day send them to me 🛠