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On Tue, 2003-04-22 at 08:29, Jim Adney wrote: > On 22 Apr 2003 at 9:08, Mark Seaton wrote: > > > Well they were all lined up but I moved them round so they were 120deg > > staggered over a year ago. I know you're not supposed to do that though as > > any ovality of the bore won't match the rings anymore and the seal will be > > compromised. But they should have worn themselves back into shape by now I > > would have thought. > Piston rings rotate as the engine runs. That is what the 60 degree cross hatch in the cylinder walls is for when you hone the cylinders. I space the rings on a new assembly, but don't really worry about it. One thing you do want to do, is make sure that the rings are free on the pistons, with no carbon or varnish under them. -- Russ Wolfe '66 FB MT '71 FB AT '65 Bug (not running) russw@classicvw.org http://www.classicvw.org ------------------------------------------------------------------- List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org