Main Motorcycle: 72 Bonneville T120RV
Join Date: Aug 2010
|Classic, Vintage & Veteran For Coventry and Meriden Models. Anything pre-Hinckley goes.|
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I don't know if they are still marketed as Hepolite. They were absorbed by Federal-Mogul.
I just got a set in for a 750 and they are marked AE-Federal Mogul, no Hepolite name mentioned on the packing.
So Hepolite pistons are actually JCC's? I guess the JCC rings might work ok then.
You have to be careful with mixing & (not) matching rings and pistons.
It hasn't anything to do with the actual bore diameter / end gap, or the THICKNESS of the rings (to fit in the grooves), but rather the WIDTH of the rings from O.D. to I.D. and the depth of the piston's grooves.
Some pistons have shallower grooves and are mated with narrower width rings, so fitting a wider ring will result in the entire o.d. of the ring protruding significantly from the piston's goove even when compressed as much as possible.
I don't think narrower rings will work AS WELL in deeper grooves, either, but I've never tried it.
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