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On Sun, 2003-09-21 at 18:44, Mark Seaton wrote: > > I bought new Ps and Cs expecting the worst and I've decided to fit them > anyway- I figured that I don't know much about the cars history and it would > give me peace of mind. > > Are there any recommendations for running in a new set? I think I read > somewhere that you should run the engine hard for a few minutes to ensure > the rings bed themselves properly. Is that a good method? I was just going > to oil them well on assembly but do they need something special? Is there a > recommended procedure from the gurus? > Don't run the engine too hard, or let it get too hot for about the first 300-500 miles. At that time, change the oil, clean the strainer, and adjust the valves. > Also I'm going to replace some valves. The guides seem OK but again for > peace of mind I'd like to replace the exhausts. They all look absolutely > fine- no stem wear, good makes (VW stamped) and clean shiny seats. For cost > reasons if I do replace them it will probably be with Osvat valves rather > than genuine VW valves which seem ridiculously expensive. I know that Jim > already warned me against using valves that didn't have a chromed stem. > These don't seem magnetic at all anywhere so I guess they can't be plated. I > found this link though: Don't skimp on the exhaust valves. Use name brand valves. (VW, TRW, Eaton, ETC.) A failed valve at highway speeds, can pretty much "clean" the inside of a VW engine. If you have no way to actually check the valve stem to guide clearance, replace the guides also. I have never seen an intake valve fail and damage the engine. But the cost of having someone regrind your old ones against the cost of new, replace the intakes too. -- 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