Peter, maybe the problem isn't the cam follower composition. I think I
recall the old TR Competition Prep manual specified installing "weaker"
valve springs when putting in a higher lift cam, to reduce the pressure
on the cam followers. Has that been done on your motor? I'll be
interested to hear from you and other listers, as my car is going to see
some work in this area soon...
Alan Myers
San Jose, Calif.
'62 TR4 CT17502L
Peter Juergens wrote:
> Hello listers,
>
> well, I can't imagine to be the only one having that much
> trouble with the cam and the followers!
>
> I used (in nearly every combination):
>
> standard cam, non "hardened"
> standard cam ,nitrogen-hardened / plasm-nitrated (should be the
> same??)
> road/rallye-cam (~272°), ...nitrated
> and
> standard followers
> standard followers, plasm-nitrated
> "special race followers" somewhat hardened with oil drain holes on the
> side
>
> the result is always: a more or less worn cam
> and followers with heavy pitting on the bottom....
>
> In the moment, I've got two 272 cams: one with a unknown german
> profile and one Kastner-Cam.
> Both have a fresh grind and are plasm-hardened.
>
> Now you experts... tell me,
>
> what cam-followers shall I use???
>
> TIA and BFN
>
> Pete
--
MZ
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