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On Mon, 2004-05-03 at 03:00, phil cain wrote: > I hope that everyone knows that these cases run with > negative pressure on them from the vacuum line going > from the oil breather to the carburettor intake.If oil > is forced out something is wrong with the engine, too > much blowby or the vacuum draw is not connected to > the carburettor. I guess I'll get ready for a lot of > flames on this one, but it is true these engines are > designed for negative pressure and this has a tendency > to keep them from leaking a lot of oil, but on the > other hand if there is a large air leak on the engine > it will leak oil from other places. Phil > That is one of the reasons VW could get away with no crank seal as such on the crankshaft pulley. Just a return screw thread, and an oil slinger. -- Russ Wolfe '71 FB AT '66 FB MT '65 T1 (not running) russw@classicvw.org http://www.classicvw.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org