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97 850R Breather

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

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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greg850r
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greg850r

97 850R Breather

Post by greg850r » Sun Aug 11, 2019 11:09 am

Has anyone ever seen a breather like this one? I'm thinking it's aftermarket. This is an auto car the previous owner converted to a 5 speed.
There is a 1/4 turn shut off on the bottom line that goes to the port on the intake snorkel right in front of the turbo where the stock PCV box big hard line usually goes. The large line coming out the front side goes to the PCV box on the block under the intake. There is another hose you can't see coming out the back 180 degrees from the one in view that has a size reducer on it and connects to the vacuum tree on the intake.
97R1.jpg


05 Cross Country wagon
99 C70 Convertible
96 850R wagon
96 850T wagon
96 850 GLT 5spd N/A sedan
97 850R 5spd sedan
66 GTO 421SD 4spd
67 GTO 455 T400
02 Powerstroke 4x4
85 Yota 4x4
24' 454 Challenger
07 Softail Custom
02 Sportster Custom
Parts cars not included

Platypius
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Year and Model: 1995 850
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Platypius

Re: 97 850R Breather

Post by Platypius » Sun Aug 11, 2019 11:30 am

greg850r wrote:
Sun Aug 11, 2019 11:09 am
Has anyone ever seen a breather like this one? I'm thinking it's aftermarket. This is an auto car the previous owner converted to a 5 speed.
There is a 1/4 turn shut off on the bottom line that goes to the port on the intake snorkel right in front of the turbo where the stock PCV box big hard line usually goes. The large line coming out the front side goes to the PCV box on the block under the intake. There is another hose you can't see coming out the back 180 degrees from the one in view that has a size reducer on it and connects to the vacuum tree on the intake.
97R1.jpg
Definitely an aftermarket. Probably a Spectre or a Mr.Gasket. I have one on my Chevy 350.



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erikv11
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erikv11

Re: 97 850R Breather

Post by erikv11 » Sun Aug 11, 2019 12:46 pm

I'm surprised the bottom line connects to the snorkel. More typically, an aftermarket trap is plumbed this way to catch and empty the condensate via the 1/4 turn valve, instead of feeding it back into the intake.


'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 140k
'98 S70 NA, 210k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 280k
'06 S60 R, 160k
gone: '96 NA 850 210k, '98 NA V70 182k

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greg850r
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Re: 97 850R Breather

Post by greg850r » Sun Aug 11, 2019 6:46 pm

I think I'll eliminate it. That big fat blue silicone hose coming from under the intake is long enough to plug right in to the snorkel where it goes and should last and evacuate the crankcase better than the tiny one pulling from the vacuum tree. That's probably why they had 2 hoses connected to vacuum.


05 Cross Country wagon
99 C70 Convertible
96 850R wagon
96 850T wagon
96 850 GLT 5spd N/A sedan
97 850R 5spd sedan
66 GTO 421SD 4spd
67 GTO 455 T400
02 Powerstroke 4x4
85 Yota 4x4
24' 454 Challenger
07 Softail Custom
02 Sportster Custom
Parts cars not included

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