marcel chichak wrote:
>
> Why would you use them on an S anyway? They have press fit pins.
>
> This time because the teflon buttons had WORN OUT and
> the circlips bounced out of their groves.
>
You are correct - I used them on a 998 not the "S".
But we used them WITHOUT circlips. Machined them with a shoulder to go
inside the pin ID [about .250/.350] and with a slightly shaped head for
cylinder wall contact. Sorry I can't tell you what grade of Teflon we
used - maybe in that respect we were lucky. After - oh - six race
weekends the buttons showed no sign of wear, heat or oil degradation and
we used them again for another six or so weekends - still no degradation
[on the buttons anyhow!].
Derek
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