Re: How to put a ring on a piston and not break it

Posted by Bill Smith on November 02, 2003 at 20:09:23 from (63.147.130.156):

In Reply to: How to put a ring on a piston and not break it? posted by Buster on October 31, 2003 at 05:55:17:

When putting in new rings, I would advise you to get a ridge reamer and cut out the lip at the top of the sleeve. I would also advise you to hone the cylinder. Always put the ring in the cylinder and check out the end gap. There needs to be a gap, but not to big of a gap. You can measure it to see if it is within specification. I always remove rings from top down, and put them back on from bottom up on the piston. You can use a ring spreader to do this but I don't like to because there is a fine line between spreading it to the point it will break. I put them on by hand and in a manner that they hardly get spread at all. Place ring on top of piston right side up. A little off center so you can get one end in the top ring groove. Then work the ring around so that it is entirely in the top groove. Do the same manner to get it to the next groove and then the next. Doing it in this manner you will find that the ring harldy has to get spread at all. It doesn't have to get spread to the point that the ring is bigger around than the piston. They ussually break when spead that wide. After all rings are on, make sure the ring gaps stagger from one side of the piston to the other from ring to ring. You don't want those ring gaps all lined up in a row. Then put a ring compressor on the rings and slide the piston into the cylinder. As far as scratching the piston's side, of coarse you want to avoid that but remember that theoretically the rings make contact on the cylinder walls and not the piston.

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