Gold Lifetime Member
Join Date: Jan 2005
Location: 2 Dog Town in West Texas
Re: piston pin lock rings
My guess is you have a sbc? Most of those are .041 . Your grove should be about that unless you have off brand pistons. I have seen double spirolox , doube E ring and round G rings and lastly ,teflon buttons.
As mentioned above, you pretty much need to start with the tail end of a partially open spiral, then wind in with a small screw driver tip, Once you get the hang of it, no problems.
But if the ring grove is too small, this will not happen. . Need to somehow measure that grove.
And if you use Tru Arcs, install with the sharp edge of the lock , away from the pin.
TC # 349
Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968
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