[HWYSTR455]

The spec is .015, if it's tighter, may want to open them up. But, I've never had to open them up before, which makes me wonder if you got a set for a diff bore. Check.

They are made of a diff material than other rings, and are 'flimsy', so grinding them may be difficult. You may want to try stacking 2 or more on top of each other when you grind them, to help prevent them from flopping around.

Before you open them up, ask Butler would be my suggestion.

True on the 2nd ring, but, if you are already going to a step or two over the 'standard' gap, it's ok to make them the same as the top ring.


EDIT: You might be able to use vise grips with 2 popsicle sticks, put the oil ring in between the popsicle sticks and use a fine hand file. That might be easier than trying to grind them. You also might be able to stand them up on their' edge, and then use the grinder. Experiment.

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