At 11:04 PM 12/1/96 -0600, ERIC ZENO wrote: > >On Sun, 1 Dec 1996, Larry Stichweh wrote: >(snip) >> This is a tale of two heads ;-). >> The heads arrived but the shop owner was concerned that there may be >> some cracks in the heads. He said the area between the valves or near >> the plugs was where he has found them before. Cracks in this area are >> an early step to dropping a valve into the cylinder, very bad >> happening. Under a magnifier there was one suspicious area between two >> of the valves but it was not obvious. >> >(snip) >> >> Larry > > In,..,.,.. I think ??, It was the Bentley manual It state that small > cracks in this area are useable! > I have used heads, both in air cooled and water cooled VWs (Rabbit variety) with as much as 2mm worth of crack between the valve seats as you described. A service bulletin from VW states the proper way to check this is to reinstall the head, fully warm up the engine, and check compression. Kind of a severe test, who wants to reinstall a bad head. If it ran well before you took it apart, leaking coolant or was OK until the haed gasket went. Use the head. Greetings from Michigan's Upper Peninsula Jeff & Jean-Marie Diebolt jdiebolt@up.net
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