New (to me) car and some headaches - Page 2 - 6SpeedOnline - Porsche Forum and Luxury Car Resource

Mar 23, 2015 | 08:43 AM

#16

Mark @ AIM Performance

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From: S.Plainfield, NJ

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Quote:

Originally Posted by SamboTT@ByDesign

Check valves

+1

does the car still have a stock TB plenum or aftermarket?

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Mar 23, 2015 | 02:28 PM

#17

HIX

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Joined: Feb 2010

Posts: 983

From: New Smyrna Beach, FL

Rep Power: 120

Car has the IPD plenum.

I lowered motor and used soapy water. If anything is leaking it's not showing any bubbles.

At Sam's suggestion I pulled up a PET http://www.porsche.com/all/media/pdf...7T_KATALOG.pdf

And am looking to see what check valves there are. Any idea which one vents the oil tank? Or would be involved in the 'whooshing' sound I hear when I open the Oil Fill cap?

Mar 23, 2015 | 03:08 PM

#18

Mark @ AIM Performance

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Joined: Dec 2009

Posts: 6,584

From: S.Plainfield, NJ

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You will not see it in pet since on 997 the check valve is built into the plenum. IPD had an external check valve. You will also not see soapy water bubble since check valve leaks from plenum into the tank. Lower the motor and follow the larger line that goes from oil tank to check valve behind IPD. That valve is likely bad which is why you hear air coming with the oil cap off. Happy hunting...

Mar 25, 2015 | 03:18 PM

#19

HIX

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Joined: Feb 2010

Posts: 983

From: New Smyrna Beach, FL

Rep Power: 120

Any idea how I test to see if it's bad. And if it is what should I order to replace it? Not sure of what part #.

I appreciate the help!!

Mar 26, 2015 | 10:15 AM

#20

Mark @ AIM Performance

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Joined: Dec 2009

Posts: 6,584

From: S.Plainfield, NJ

Rep Power: 856

Quote:

Originally Posted by HIX

Any idea how I test to see if it's bad. And if it is what should I order to replace it? Not sure of what part #.

I appreciate the help!!

well if u hear air going into your oil tank the checkvalve is bad ... pull it out and blow in it. it might be stuck or installed backwards. as far as replacement goes, contact IPD for a new one.