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850 1995 pcv system without hose to the head from the oil trap

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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classical
Posts: 23
Joined: 4 December 2024
Year and Model: 1995 850 N/A 2.4
Location: Finland
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Re: 850 1995 pcv system without hose to the head from the oil trap

Post by classical »

About the little cut hose, it does not have anything to do with the breather box. Someone has accidentally dropped it between the intake manifold and the engine.

scot850
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Post by scot850 »

I always find these changes baffling as to why Volvo made so many variations. I learn something new every day reading inputs to MVS. Thanks for taking the time to share your findings.

Neil.
2006 V70 2.5T AWD Polestar tune
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L - Sold
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - Sold

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misha
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Year and Model: '97 850 2.5 20v
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Post by misha »

So...it seems that there are 3 versions of PCV breather box.
2 versions,one smaller and one bigger with standard 2 ports on top and this unicorn with a single port on top.
Untill this case showed up,i always thought that there are 2 versions...smaller one for early cars and bigger one for later cars.
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS

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classical
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Joined: 4 December 2024
Year and Model: 1995 850 N/A 2.4
Location: Finland
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Post by classical »

Yes, it seems that 850s have these variations.

Finally, I replaced the breather system. The first time I have ever done it. It was a learning process for sure. I had already ordered the pcv kit before I started the job. The breather box of this new kit had the two ports on top of it, so I blogged the outer port –– the port which would go to the valve cover. I checked what is inside of the old box, so that I can make sure that the new box is similar. Indeed, as far as I am concerned, the only difference is the port for the valve cover. Thus, I believe this new box will work just fine. The old box had some (or pretty much) gunk in it. The ports of the engine block did not have any gunk, nor did I notice or I do not remember any gunk in the hoses. Yet, I am glad that I did the job. Now my Volvo can breath more easily :D

To everyone who helped me, I want to say: Thank you!

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