What is the fitting for S13 PCV valve?

[Kenji001]

Is it 3/8" NPT? I can't find the answer online.

While we find your parts, please enter your ZIP Code at CSK Auto (http://shop.oreillyauto.com/ProductList.aspx?PartType=5&PTSet=A)

[Bigsyke]

I thought it was something like M20x1.5 Its not an NPT pitch.

[supra33202]

Is M20x1.5 to 12 mm adapter existing? Where can I buy it? I want to connect a 12mm hose from PCV valve opening to a catch can.

[Bigsyke]

Not sure, but I just drilled out the rear end of the PCV valve and the check valve slid right out.

[supra33202]

Does anyone know the fitting for S13 PCV valve?

Car Part Wholesale - Auto Parts and Accessories Catalog - Pcv (http://cpwstore.carpartswholesale.com/catalog/?N=0&uts=true&Ntt=PCV)

[Kenji001]

Please help!

[japslapsilvia]

its 3/8 BSPT

[Kenji001]

its 3/8 BSPT

http://www.ka-t.org/forums/viewtopic.php?t=27437&start=105

flip240 from Ka-t said,

"they are both 3/8", the fitting is 3/8" NPT."

Is the fitting 3/8 BSPT or 3/8" NPT?

Thanks for the help!

[s14unimog]

I highly highly doubt its NPT. If I recall correctly it is tapered tho. I would figure out what Japan uses as typical pipe threads; might be able to google that one. It might be BSPT but again I'm not familiar with their standards. The one from the 200sx SE-R is the same one. Its just a check valve that lets air out and not in.

Are you looking to re-thread?

[Kenji001]

For my KA-T, I want to remove the PCV valve and connect an adapter to the air box and run a hose to a catch can. Basically, I want to vent the engine blowby to a catch can and atmosphere.


Right now, I need to know the fitting for the PCV valve and buy an adapter.

[s14unimog]

you want to remove the PCV altogether? If you want to vent the blow by, just use the VC breather connection on the front of the VC. Connect that to a catch can and the catch can to the intake tube going to the turbo. This will cause a vacuum at WOT and pull vapor from the crank case. I wouldn't disable your KA's PCV...

[Kenji001]

you want to remove the PCV altogether? If you want to vent the blow by, just use the VC breather connection on the front of the VC. Connect that to a catch can and the catch can to the intake tube going to the turbo. This will cause a vacuum at WOT and pull vapor from the crank case. I wouldn't disable your KA's PCV...

So how would you deal with the PCV system?

[s14unimog]

leave it intact and add a catch can for that as well. The PCV valve allows air to be pulled from the crankcase, while the intake manifold is under vacuum. If you are noticing a lot of oil in your intake manifold, I would recommend a catch can for that along side a crank ventilation catch can.

I left my PCV system intact on my KA-T...

what's the reason for messing with it anyways? Do you have a known problem that you're trying to correct?

[Kenji001]

leave it intact and add a catch can for that as well. The PCV valve allows air to be pulled from the crankcase, while the intake manifold is under vacuum. If you are noticing a lot of oil in your intake manifold, I would recommend a catch can for that along side a crank ventilation catch can.

I left my PCV system intact on my KA-T...

what's the reason for messing with it anyways? Do you have a known problem that you're trying to correct?

Basically I just want to follow this guide.

www.ka-t.org :: View topic - HOW TO: *Properly* disconnect your PCV ... (http://www.ka-t.org/forums/viewtopic.php?t=27437&postdays=0&postorder=asc&start=0)

He said PCV system should be removed for KAT because the potential of vacuum leak, and he vented PCV to atmosphere.

[Bigsyke]

I just did it the other week, use a 3/8ths npt with some pipe dope/permatex ultra grey. perfect.

[Kenji001]

I just did it the other week, use a 3/8ths npt with some pipe dope/permatex ultra grey. perfect.

So it is 3/8" NPT.

Thanks for the help!