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DSM DSM is offline
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Join Date: Jun 2005
Location: CT
Posts: 252
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930 3.4 Oil Pressure Relief Valve - WTF? - With Videos

Can someone explain why the washers and the small steel ball came out of my oil pressure relief valve? It fell out when removed. I assume this is how it was assembled inside. The washers fit inside the piston and match the spring dia. They will not fit over the spring guide. No clue on the steel ball?
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I'm looking for a solution to low oil pressure at full warm up idle. The pressure is just under 1 bar @ 1000 rpm. On cold start pressure is 4+ bar. As it warms up pressure drops. Ok, that's normal but the knocking noise at idle when its fully warmed can't be normal?? Check out these videos. One is after a few minutes of warm-up and the other is after full warm up. Once its warmed up the noise is only heard if oil pressure is 1 bar or less??
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http://s403.photobucket.com/user/supersport911/media/BEFOREFULLWARM-UP_zps108925e9.mp4.html
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http://s403.photobucket.com/user/supersport911/media/AFTERFULLWARM-UP_zps0fc07968.mp4.html
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Last edited by DSM; 08-05-2013 at 05:32 AM..
Old 08-05-2013, 04:31 AM
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