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Join Date: Oct 2003
Location: Beech Island, SC
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930 oil leak

I have a 1987 930 that's leaking oil below the number six cylinder. The oil thermostat was leaking and I replaced the oring on it but there's still a leak coming from that same location. Does anyone have any ideas what this leak could be. The oil cooler is not leaking.
Old 10-31-2007, 08:18 AM
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Quote:
Originally Posted by Stan Pittman View Post
I have a 1987 930 that's leaking oil below the number six cylinder. The oil thermostat was leaking and I replaced the oring on it but there's still a leak coming from that same location. Does anyone have any ideas what this leak could be. The oil cooler is not leaking.
Many of the leaks start on top and make their way down. There is an oil pressure sensor that is a common leak point. It's located not far from the engine oil thermostat...near the crankcase oil breather cover - in between cylinders three an six.
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Old 10-31-2007, 08:32 AM
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I forgot to mention that I replaced it also.
Old 10-31-2007, 08:58 AM
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Garage
What? 930's don't leak!
Old 10-31-2007, 10:53 PM
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Had the same issue and it turned out to be a barrel gasket
Old 10-31-2007, 11:43 PM
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Had the same issue +1 for the barrel gasket

here is the thread (with photos) where I worked it out
Help me find the source of this leak
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1988 930 Targa
1991 E36 BMW 318i
2004 Mercedes ML270

Last edited by rotorhead; 11-01-2007 at 05:20 AM..
Old 11-01-2007, 05:15 AM
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