Pure and simple curiousity is driving this question - why are some lobes of
a TR 4-cylinder cam "offset" and don't line up with the tappets?
The only explanation I have heard is that it causes the tappet to turn.
Unfortunately I don't have an engine available to look at right at the
moment, but as I recall it's only some of the lobes that are offset, which
would seem to put paid to that theory - why would you only want some tappets
to turn?
I think that some of you run billet steel cams - do you make them the same
way? Certainly wouldn't work very well with roller tappets!
Wildest theory gets the prize.
Wes Dayton - Sydney
p.s. No - they don't turn in the opposite direction in the Southern
Hemisphere. Well, I guess I can't actually prove that!
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