Re: Rings for H

Posted by Janicholson on December 11, 2006 at 07:10:21 from (199.17.6.122):

In Reply to: Rings for H posted by Tom Windsor on December 10, 2006 at 19:29:03:

Tom,
With no piston at the top, (2" down will do) put your fingers in the bore and feel, with a finger nail, for a ridge at the point on the cylinder that the top ring stops. If it is easily noted, the wear is probably too much to repair with rings alone. If it is just barely detectable, it is a good idea to measure the bore with a bore gauge across aeveral angles to assure a good average measurement(machinest's tool). The difference between the bore measurement at the max wear point (just below the ridge) and at the bottom of the bore (measured at the bottom of the sleeve (about 1/2" up from the bottom. will give the taper. In my opinion if it is more than .005, I would sleeve it. In the case that it is OK, it is necessary to ridge ream the cylinder to remove the ridge (special tool, not hard) this allows the rings to go all the way to the top of their travel without hitting the ridge and breaking!!! Hone the cylinder/s after ridge reaming with a bead style glaze breaker at or near a 45 degree hone mark angle with a 350 (or so)grit bead hone to allow the rings to seat. Good luck, JimN

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