> Well, somebody has to say it.
>
> The first set of pistons I bought for my vintage racer, ten years
> ago, were four ring pistons. I conferred with ring manufacturers and
> we all agreed that with the advances in ring technology in the last
> 40 years, the fourth ring was excess baggage.
Thanks, Jack. I remember reading the same instructions in a book somewhere,
but couldn't recall for sure it was a Triumph book. And I'm pretty sure
I've taken a 83mm 4-ring piston out of a TR3. The 4th ring was below the
wrist pin, sort of a preliminary oil scraper.
Randall
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