xssive

iTrader: (123)

How accurate do the oil control rings have to be filed? I have seen that they need to have a gap between .015" and .060", but do the two control rings need to be the same gap on each piston? For instance, is it alright to have a piston with one oil ring at .030 and one at .018? Will looser oil gaps result in smoking?

Country Boy

iTrader: (24)

No... It doesnt make a difference. Thats why there is such a big tolorance. All they do is scrape excess oil from the walls.

Country Boy

iTrader: (24)

Smoking comes from ALL the rings being worn too much. You still have 2 more tight rings above the oil rings.

LOnSLO

iTrader: (15)

To add, the ring size you purchased for your bore will allow you to not have to file the oil ring or support rings, at least it shouldn't. I have never had to file on the oil rings, but I do always check to make sure.

xssive

iTrader: (123)

They are just so hard to check the gap on because they are so flimsy. Its hard to square them up in the bore.

Z06PSI

iTrader: (33)

Does it.?????? My leakdown passed with flying colors but still get massive amounts of oil consumption and smoke on decel.....Power is good also. GM's weak *** oil recovery rings is the suspect here.