Volvo XC70 This wagon/SUV crossover offers the capabilities of an SUV without SUV size.

Crankcase breather filter.

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Old Dec 27, 2006 | 05:18 PM
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Default Crankcase breather filter.

My xc has 140k and I am suspecting the flame trap setup is clogged.

What do you think about just adding a little crankcase breather filter to the line coming out of the crankcase, or just routing it to a catch can.

The OEM kit that ipd has is pretty expensive, so I was seeing if what I mentioned above would be an OK alternative.

Also, would the PCV valve not be in the system anymore if I added just a crankcase breather filter to the end of the tube coming out of the crankcase?[/align]
 
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Old Dec 28, 2006 | 10:42 AM
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Default RE: Crankcase breather filter.

I don't think that will do anything.
If the system is clogged the filter will do nothing at all.

I would try to get the vent box and replace.
 
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Old Dec 28, 2006 | 01:46 PM
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Default RE: Crankcase breather filter.

What about just routing the crankcase line next to the oil filler cap into a catch can? That is how I had my setup on my Subaru. What is the significance of all the excess lines?
 
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Old Dec 28, 2006 | 01:56 PM
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Default RE: Crankcase breather filter.

It is for the engine to breathe internally.
If it gets clogged up to bad it will start making the seals leak.

If it is clogged in the box the engine still won't breathe even with the hose setup you want to do.

 
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Old Dec 28, 2006 | 02:01 PM
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Default RE: Crankcase breather filter.

Crap. I need to get this done asap. Is there other lines coming out of the crankcase too besides the one next to the filler cap? Is that why it can't breath properly. There has to be some sort of alternative.
 
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Old Dec 28, 2006 | 02:23 PM
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Default RE: Crankcase breather filter.

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That is the system with all the lines.
 
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Old Dec 28, 2006 | 03:10 PM
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Default RE: Crankcase breather filter.

So it looks like all I would need to do is take the two lines going into the catch can, cut them up top, and route new hoses into a new catch can.

Right?

That diagram is great btw, thanks.
 
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Old Dec 28, 2006 | 03:45 PM
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Default RE: Crankcase breather filter.

Still not sure that will work.
The bottom of the Vent box goes to the engine as well.
Which has a port to.
 
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Old Dec 28, 2006 | 03:49 PM
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Default RE: Crankcase breather filter.

I believe, (could be wrong) that the port on the bottom is just the nasty oil being recycled back into the engine. Anybody know if that is true.
 
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Old Dec 29, 2006 | 10:08 PM
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Default RE: Crankcase breather filter.

I think so but not sure.
 
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