1998 Volvo S70 PCV System

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wtharpervolvo-98
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1998 Volvo S70 PCV System

Postby wtharpervolvo-98 » Mon Nov 30, 2009 9:07 pm

My 180,000 mile S70 I believe is in dire need of the PCV System to be cleaned. Has anyone actually done this themselves? From what I have read, it seems like a chore but not impossible for a shade tree type mechanic.

Thanks for any feedback!

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polskamafia mjl
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Re: 1998 Volvo S70 PCV System

Postby polskamafia mjl » Mon Nov 30, 2009 9:31 pm

Is your S70 N/A or turbo and also have you done the dipstick test? For the most part, N/A cars do not clog their PCV systems, it is usually just the flame trap that needs to be cleaned.
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misha
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Re: 1998 Volvo S70 PCV System

Postby misha » Mon Nov 30, 2009 11:47 pm

I agree with polskamafia.

But,as far as i remember,in s/V70 models from '97-'99,flame trap shouldn't be present in flame trap housing.

I think that those models years came from the factory without flame trap installed.

P.S Read the article at the end of this page:
http://www.volvospeed.com/Repair/ftrap.php
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confused_al
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Re: 1998 Volvo S70 PCV System

Postby confused_al » Tue Dec 01, 2009 2:29 am

polskamafia mjl wrote:N/A cars do not clog their PCV systems,

I can't agree with that, the bottom hole on my engine block (95 n/a) was 80% clogged when I took the oil trap out , not to mention the top hose was very clogged at the trap end as well.
wtharpervolvo-98 wrote:Has anyone actually done this themselves?

Yes, here is the write-up:
http://volvospeed.com/vs_forum/index.ph ... el-98-v70/
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polskamafia mjl
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Re: 1998 Volvo S70 PCV System

Postby polskamafia mjl » Tue Dec 01, 2009 2:37 am

polskamafia mjl wrote: For the most part, N/A cars do not clog their PCV systems, it is usually just the flame trap that needs to be cleaned.


It can and will happen to some people. However, turbo cars are more susceptible to PCV problems than N/A cars.
'All my money is gone and I have an old Volvo.' - Bamse's Turbo Underpants

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wtharpervolvo-98
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Re: 1998 Volvo S70 PCV System

Postby wtharpervolvo-98 » Thu Dec 17, 2009 8:13 pm

Thanks for the feedback. My car is not a turbo. I'll look into the flame trap.

Sorry it took so long for me to reply, I had to deal with a broken top motor mount bushing. Not the easiest thing to replace with an OEM part.

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Re: 1998 Volvo S70 PCV System

Postby Ozark Lee » Fri Dec 18, 2009 2:24 am

It can and will happen to some people. However, turbo cars are more susceptible to PCV problems than N/A cars.


I'm not sure where that myth came from, all of my 850s have had PCV issues at around 140k, both of the N/A models and the turbo. Internally it is all the same no matter what is happening above the head. The turbos do have the unique issue of the PTC valve clogging and the N/A models have the unique issue of the flame trap clogging, until you just take the flame trap out and throw it away, but those or more or less just different implementations of the same problem area.

...Lee
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Re: 1998 Volvo S70 PCV System

Postby confused_al » Fri Dec 18, 2009 1:57 pm

Ozark Lee wrote:I'm not sure where that myth came from, all of my 850s have had PCV issues at around 140k, both of the N/A models and the turbo. Internally it is all the same no matter what is happening below the head.

I am NOT confused any more!
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januwan
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Re: 1998 Volvo S70 PCV System

Postby januwan » Fri Dec 18, 2009 9:28 pm

confused_al wrote:
Ozark Lee wrote:I'm not sure where that myth came from, all of my 850s have had PCV issues at around 140k, both of the N/A models and the turbo. Internally it is all the same no matter what is happening below the head.

I am NOT confused any more!



Plus one.... see my thread above due for PCV job
januwan


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