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On 23 Apr 2003 at 0:39, Mark Seaton wrote: > I've got another new theory though- I reckon this is the best yet! OK I > agree that the rings are probably not the issue. I think it is the head to > cylinder seal. You remember that I said that the head came loose- like > finger tight nuts over a year ago. Well I re-arranged the rings but I didn't lap > the cylinder to head joint. I now believe that I'm re-visiting old ground and > that the head is working its way loose again- This theory has some merit, since the heads tighten up as the engine warms up. This is due to the fact that the cylinders will always be hotter (and expand more) than the studs. I would just check the torque on the lower head studs. If they are still fine, then this is not likely to be the problem, unless some debris got in between the head and the end of the cylinder when you put it back together last time. -- ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ------------------------------------------------------------------- List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org