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On 25 Aug 98, at 12:57, Park, Keith J (CRD) wrote: > It drives the Notch fine, powerful, but has the flickering oil light when the idle is turned down > real low (500RPM). 500 is too low to expect much in the way of oil pressure. > 14PSI around town in 4th... Geeze! Ya'd think I had Synthetic in there! > ...and at normal Idle the oil light is still out (with the press gauge on the pin!) This is really not too low for a VW engine. I think the threshold for the oil pressure switch is about 7 psi. > Secondly... Uncle Gene was barking up the right tree when He blamed oil pressure problems on worn > cases, Gene didn't ever make his point really clear. He just said that used cases put out lower horsepower. If you read some of his other stuff carefully you will see that he makes the point that the engine needs lots of oil FLOW, but only the stock amount of pressure. I don't know why, but our engines don't need, and never develop, the 70-90 psi of oil pressure that some other kinds of engines get. I don't think this is a problem. This pressure is not what keeps the metal parts of our engines from rubbing against one another--that pressure is developed hydrodynamically within the journal bearing and is not measured by the gauge. Several authors make the point that all you need to do is provide whatever pressure is necessary to get the oil into a low pressure region within the bearing, then the hydrodynamic process takes over and provides the lubrication. Jim - ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ------------------------------------------------------------------- Search old messages on the Web! Visit http://www.vwtype3.org/list/