Maynardb 5 #1 Posted December 3 (edited) Hi im working on a H55D that has been bored to .020 over. The bore looks good, but I lightly honed it anyway. My question is about the rings. When I removed the rings from the piston, I see an expander behind the second ring I can’t find any reference about if that’s the correct location or does it go behind the oil ring? thx Edited December 3 by Maynardb Share this post Link to post Share on other sites
Achto 27,816 #2 Posted December 3 5 hours ago, Maynardb said: I see an expander behind the second ring I can’t find any reference about if that’s the correct location or does it go behind the oil ring? Usually the third groove with the oil scrapers is the only one with an expander. I would guess that you have new after market rings. The new rings should have come with instructions as to ring orientation. Follow these instructions and use nothing from the old set. 2 1 Share this post Link to post Share on other sites