Excessive oil found in the intercooler (one side only)

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Aug 6, 2018 | 10:04 PM

porsche996tt_tpe

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Excessive oil found in the intercooler (one side only)

Hi,

Car is 2002 996 turbo. When changing the coils and spark plugs, the intercooler were removed. The left intercooler has a lot of oil in it, about 300cc of it. The right side intercooler is dry. Is this indicative of a turbo failure or what? Please help.

ps. Boost to 0.6, 0.7 can be achieved.

Thanks!

Last edited by porsche996tt_tpe; Aug 6, 2018 at 10:07 PM.

Aug 6, 2018 | 10:28 PM

brnrdtns

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The check valve may be malfunctioning or the turbo bearing could be worn out. Check the turbo shaft for play.

Aug 7, 2018 | 09:10 AM

techweenie

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I had both sides swimming in oil, and you'll likely find oil in the intake plenum as well. In my case it was a failed turbo seal (or maybe both).

Aug 8, 2018 | 08:17 AM

Rizwan Misbah

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Second the failed turbo seal diagnosis. I would pull out the inter cooler, charge pipe and throttle body for a thorough cleaning as welll.

Oct 17, 2018 | 10:53 PM

benracinglately

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Where is the turbo seal located? I’m familiar with the location of the check valves near the turbo but not the “turbo seal”. Thanks for your help.

Oct 21, 2018 | 07:23 PM

Woofie_187

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mine did the same **** and the culprit was the engine oil was overfilled i drained all the oil out of the crankcase and then no more oil in my intercoolers, filter or diverter valves. I checked the oil and it was right in the middle after i drained all that out.