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  #1  
Old 06-04-2013, 02:46 PM
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PCV Idea

In an effort to change the PCV regularly without having to use special tools I have come up with a way to get the PCV out into the open.

First, screw one of these in place of the PCV:

http://www.amazon.com/Hose-Male-Tubi...I28VUZ19FGQ30B

Then run a short length of hose up to an easily accessible area. Then attach this to the other end of the hose:

http://www.amazon.com/Thogus-Fitting...U35FCWET&psc=1

Combine it with this reducer:

http://www.amazon.com/Thogus-Nylon-F...FLI6P1W5&psc=1

And, finally, screw your PCV into the 1/4" fitting on that reducer.

It might be easier to use an alternate PCV with 5/8" (actually, I think it is technically 19/32") hose fittings on either end, if one exists. Then you can just use that first part in place of the current PCV, run a short length of hose, pop in the PCV and then attach the rest of the hose.
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  #2  
Old 06-04-2013, 04:44 PM
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Re: PCV Idea

How "regularly" do you change your PCV?
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Old 06-04-2013, 04:51 PM
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Re: PCV Idea

I think a better idea might be to use a catch can setup to collect oil vapor so that not as much can get to it and clog it up.

The added benefit is that because oil reduces effective octane rating of fuel the engine would be able to handle more timing which can possibly increase mpg and reduce emissions.
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Old 06-04-2013, 04:59 PM
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Re: PCV Idea

Quote:
Originally Posted by Hocrest View Post
How "regularly" do you change your PCV?
You took the words right out of my mouth.
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  #5  
Old 06-04-2013, 08:57 PM
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Re: PCV Idea

I have been changing it every 30K but I recall someone saying they change their's every 15K. I believe the argument was that it is known to clog quickly and that a clogged PCV can have significant negative impact.
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1996 Polo Green Subaru SVX LSi, 168,XXX miles, Redline D4 ATF, Redline 75W90 gear oil, K&N HP-4001 Oil Filter, Mobil 1 5W50 FS (3qt) and 5W30 High Mileage (4qt) Oil Blend, Motul RBF600 Brake Fluid, AC Delco A975C Air Filter, NGK BKR6EIX-11 plugs, Centric Rotors, Power Stop Evolution Carbon Fiber Ceramic Brake Pads
2005 Gray Acura RL, 165,XXX miles, Redline D4 ATF with Lubegard Platinum Protectant, Mobil 1 5W20 High Mileage Extended Performance Oil
2009 Red Toyota Venza, 123,XXX, Mobil 1 5W30 High Mileage Oil
1992 Red Ferrari 348 ts, 82,XXX, Redline everything
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  #6  
Old 06-04-2013, 09:01 PM
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Re: PCV Idea

I agree y did they tuck a serviceable item under the intake... Y can't we move it out in the open..?
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Old 06-05-2013, 01:10 AM
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Re: PCV Idea

Are you sure the OEM PCV fitting is 1/4" NPT?

Here are some check valves with various sizes of hose barb fittings: http://www.boombaracing.com/cv.html

They are quite expensive for a PCV valve, but they can be taken apart and cleaned and the spring replaced.
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  #8  
Old 06-05-2013, 05:38 AM
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Re: PCV Idea

Quote:
Originally Posted by icingdeath88 View Post
Are you sure the OEM PCV fitting is 1/4" NPT?

Here are some check valves with various sizes of hose barb fittings: http://www.boombaracing.com/cv.html

They are quite expensive for a PCV valve, but they can be taken apart and cleaned and the spring replaced.
Almost positive on the 1/4 NPT. I tried it out on some fittings in Lowes. Those check valves are close but not quite big enough. The hose on out PCV is pretty big.
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1996 Polo Green Subaru SVX LSi, 168,XXX miles, Redline D4 ATF, Redline 75W90 gear oil, K&N HP-4001 Oil Filter, Mobil 1 5W50 FS (3qt) and 5W30 High Mileage (4qt) Oil Blend, Motul RBF600 Brake Fluid, AC Delco A975C Air Filter, NGK BKR6EIX-11 plugs, Centric Rotors, Power Stop Evolution Carbon Fiber Ceramic Brake Pads
2005 Gray Acura RL, 165,XXX miles, Redline D4 ATF with Lubegard Platinum Protectant, Mobil 1 5W20 High Mileage Extended Performance Oil
2009 Red Toyota Venza, 123,XXX, Mobil 1 5W30 High Mileage Oil
1992 Red Ferrari 348 ts, 82,XXX, Redline everything
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  #9  
Old 06-05-2013, 05:21 PM
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Re: PCV Idea

Just before you go on. The PCV valve is not just a one-way check valve, it is a three stage valve that is spring balanced against the manifold vacuum. A one-way valve will give problems especially with idle.

Harvey.
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