Oil Passing By Rings

[RICK W]

Any One Have Any Ring Kit Part Numbers For The 350ss .060 Piston With .031 Dykes Ring? Thanks

[Rich Biebel]

Dykes rings are not packaged in full sets from Speed Pro if I rememebr right. We always bought them seperately as an open stock top ring. The oil ring issue sounds like you have the wrong expanders or rails. You can buy rings from other suppliers that will package exactly what you want and they offer some different designs, like a Hastings syle oil ring expander. Total Seal or possibly J.E.

[Alan Roehrich]

Correct. If you want a Speed Pro Dykes ring set, you have to "build" it from "open stock" rings.

Total Seal will make most anything you want, but Keith Jones (the guy I work with at Total Seal) is not a fan of Dykes rings. Keith will likely advise you to go metric with spacers, and put a custom low tension Speed Pro SS-50U series oil ring together. But he WILL do a Dykes setup if that's what you want.

[RICK W]

Thanks Guys

[Mike Pearson]

Rick,

You should have 15 lbs of drag on the piston with the oil rings installed. If you can install the piston without a ring compressor you have the wrong rings. Install the piston in the bore up side down and attach a fish scale to the large end of the rod and pull the assembly up the bore and read the resistance in pounds. You should have about 15 to 18 lbs. Anything less and you will get oil past the rings. Once you find a good set of expanders keep them and only replace the rails on the oil ring when you are freshening your engine

Mike

[RICK W]

Thanks For The Info Mike