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PCV on S70 turbo? Topic is solved

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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Guest

PCV on S70 turbo?

Post by Guest »

A clogged PCV nipple caused problems on my '94 850 (mainly a rear main seal leak, leak around oil fill cap causing oil under plug cover, etc.) I wanted to make sure that it did not happen to my '98 s70 turbo but after a brief inspection of the same area I could not locate it. I've read about the PCV on the S70 but can't locate it. Is it in a different location? Is it not on the Turbo? I must also add that I have no experience with a Turbo and just recently took over maintenance duties on this one as it is past the point where dealer service is an advantage.

On a seperate Turbo topic, when changing the O2 sensor I noticed quite a bit of oil gathered around the turbo. Is there a common source for this type of leak? Just trying to get some information before I investigate.

Jot
Posts: 593
Joined: 24 January 2005
Year and Model: C30 2010
Location: Orr's Island, Maine

Post by Jot »

On your 850 and S70 there is an oil seperator no PVC but the '94 does have a flame trap which do get clogged along with the hose. Turbos do not have flame traps! The oil seperator is located under/behind the intake manifold.

smithy
Posts: 34
Joined: 10 January 2005
Year and Model:
Location: New Orleans

Post by smithy »

Not to sound ignorant because the name pretty much gives it away, but what exactly does an oil separator do?

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