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Re: Broken piston rings

Subject: Re: Broken piston rings
by rgrinder on 2019/12/14 16:12:56

Take a look at a few other things, it's possible that it broke during installation as in your ring compressor didn't fully compress the rings and the ring caught on the lip and got broken while being installed. Another thing to look at is if there is a ring ridge in the cylinder walls, Nissan blocks are hard and don't usually need a rebore from wear, but I have seen it happen on occasion. And as a last thought if the rings are too large for the bore as in insufficient gap when installed will cause rings to break, check the ring gap before installing them on the piston. Good luck.