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Oil leak on 9+ psi

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Old May 24, 2009 | 01:03 PM
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Default Oil leak on 9+ psi

I have APS TT on me LS2 402 and on 9 psi + I get oil leak on back of the motor ( do to to much air pesure in crank case I think) What is the best sulution for this ? Anyone selling pcv sulution ?

Thanks
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Old May 24, 2009 | 02:13 PM
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well there isn't going to be any stopping the leak since it has already started.

How is your PCV system ran now? I have each valve cover ran to a breather tank
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Old May 24, 2009 | 03:40 PM
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PVC is stock exept for catc can simular like this

http://www.corvetteactioncenter.com/...-qtys-cca.html

I just put new selings on me motor so are you sayng I need to do it agean?

I need somthink that will work!!
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Old May 24, 2009 | 03:53 PM
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You might have to replace the rear main seal. Sorry to say.
https://ls1tech.com/forums/forced-in...rs-inside.html
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Old May 24, 2009 | 05:10 PM
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Well it look like hawe some work to do on me PCV. Any one seling complite kit for this?

Thanks.
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Old May 24, 2009 | 05:10 PM
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I have seen two LS engines that developed a rear main oil seal leak where the leak cleared itself up once the engine was better ventilated. There is hope! This breather makes a huge difference. http://www.exoticperformanceplus.com....html?item=756 Bob
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Old May 31, 2009 | 06:48 PM
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With the APS kit there should have been a positive check valve included to keep the pressure from going into the crankcase via the PCV system and it works very well. If you do have the check valve in there then I would guess you are building pressure past the rings or may still have the breather hose attached to pressure somewhere.

Mike Norris
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Old May 31, 2009 | 07:20 PM
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Originally Posted by Mike Norris
With the APS kit there should have been a positive check valve included to keep the pressure from going into the crankcase via the PCV system and it works very well. If you do have the check valve in there then I would guess you are building pressure past the rings or may still have the breather hose attached to pressure somewhere.

Mike Norris

Where is this valve located on the engine?

Thanks.
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Old Jun 1, 2009 | 06:25 AM
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You did not mantion what bady you have (Vette-GTO-FBody) but in either case it is in the PCV hose between the intake port off the intake (just behind the TB) and the rest of the PCV system whether it comes off the valve covers ot the valley cover under the intake.

Here is a link to the C5 Vette installation with the valley cover PCV and on pages 25-26 is the check valve install. If you have a PCV valve originally you need to have it still unless you went to a 2004 or newer valley cover.

http://www.airpowersystems.com/corve...tion_Guide.pdf

For an F-Body with the valve cover type PCV and the check valve install is on pages 64-66. Again, do not discard the PCV valve.

http://www.airpowersystems.com/guide...sgmf-tts01.pdf

Hope this helps.

Mike Norris
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Old Jun 1, 2009 | 01:26 PM
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It is 2005 C6 Corvette

Thanks.
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