Which PCV Valve?

[626gn]

What’s the current go-to PCV valve to use? I just replaced mine with my last AC Delco CV893C valve and looking for a spare for next time. I came across a post suggesting one made for a turbo Mazda (PCV1138DL) which appears to be readily available at some local part stores, but is this our best option? What has everyone else been using with success?

Highway Stars was selling the PCV242 for a while but currently out of stock and do not offer any other options. I can find them on ebay but unsure how well they work.

 

[XracerX]

I use this one but if you wanna stay stock....not that you can see it installed..then that's up to you.

RJC PCV

rjcracing.com

 

[1KWIKSIX]

What’s the current go-to PCV valve to use? I just replaced mine with my last AC Delco CV893C valve and looking for a spare for next time. I came across a post suggesting one made for a turbo Mazda (PCV1138DL) which appears to be readily available at some local part stores, but is this our best option? What has everyone else been using with success?

Highway Stars was selling the PCV242 for a while but currently out of stock and do not offer any other options. I can find them on ebay but unsure how well they work.

Here’s what I’ve been using for years without issue.
It’s been endorsed by Eric Marshall (Turbo Tweak)
I stocked up & bought a bunch years ago , just to have on hand for spares

 

[626gn]

Here’s what I’ve been using for years without issue.
It’s been endorsed by Eric Marshall (Turbo Tweak)
I stocked up & bought a bunch years ago , just to have on hand for spares

I believe the PCV1162 is superseded by the PCV1138DL which I can get from Autozone. I'll try it unless someone has a better option.

 

[626gn]

I use this one but if you wanna stay stock....not that you can see it installed..then that's up to you.

RJC PCV

rjcracing.com

I remember looking into the RJC one years ago, but remember some having issues with them? I'll revisit it again and have another look.

 

[XracerX]

All the stockish ones I tried, except the RJC, allowed boost to pass causing oil leaks especially at the pan gasket.
I don't remember if I tried the 1162 or not though.

 

[1KWIKSIX]

Here’s a link from an old post that might help.

Where to buy PCV check valve?

So I just bought a PCV1162. If I blow on it from the small end some pressure leaks through. I was thinking it should not do that at all. Is mine defective?

turbobuick.com

 

[1KWIKSIX]

This one is listed as a replacement

Luber Finer PC175

LUBER-FINER PCV VALVE PC175

 

[626gn]

This one is listed as a replacement

Luber Finer PC175

LUBER-FINER PCV VALVE PC175

Thanks. Tried ordering this and their cheapest shipping option to Hawaii is $55.83 for two or $50.84 for one! Lol.

I may just try the PCV1138DL and see how it goes.

 

[SCOOBY DOO]

Running JUST the RJC I saw the BLM's rise.

 

[JayC]

Look at what Clippard Minimatics sells, assuming they are still in business. Thats where I used to get all my check valves. You can get a brass check valve like the RJC piece, open it up, cut the spring to lower the crack pressure and install it. Done.

 

[WE2Regal]

Look at what Clippard Minimatics sells, assuming they are still in business. Thats where I used to get all my check valves. You can get a brass check valve like the RJC piece, open it up, cut the spring to lower the crack pressure and install it. Done.

I followed Jay's tip on this years ago and it worked perfect. I can't remember the exact one I bought but I used them on a couple different cars.

 

[1KWIKSIX]

Running JUST the RJC I saw the BLM's rise.

Had the same experience using this too

 

[JayC]

I followed Jay's tip on this years ago and it worked perfect. I can't remember the exact one I bought but I used them on a couple different cars.

Yea, you can specify what kind of seals you want and everything. Clippard used to have a very extensive offering of small check valves.

 

[WE2Regal]

I remember learning the hard way to clip the spring a little at a time.

 

[JayC]

I remember learning the hard way to clip the spring a little at a time.

Its been a while but I remember just taking the spring out for the longest time. The valve would slide back and forth based on vacuum vs boost.

 

[SS/GN]

Stock PCV and a plastic check valve. You can find them anywhere,ebay etc. I found some that even look like the stock plastic check valves used on our charcoal canister etc

 

[1986 Buick GX1]

Whoosmotorsports.com

UPR Racing PRO check valve (PCV) Buick V6

Fits in the stock PCV location , our custom PRO check valve is the last PCV you'll every need to purchase Features: 0 PSI Cracking PressureExclusive Face Seal O-ringOperating pressure 0-100 PSIUltra-Bite Locking Hose BarbsCorrosive Resistant Polymer BallOperating Temperature -30° to 400°...

whoosh-motorsports.myshopify.com

 

[626gn]

Whoosmotorsports.com

UPR Racing PRO check valve (PCV) Buick V6

Fits in the stock PCV location , our custom PRO check valve is the last PCV you'll every need to purchase Features: 0 PSI Cracking PressureExclusive Face Seal O-ringOperating pressure 0-100 PSIUltra-Bite Locking Hose BarbsCorrosive Resistant Polymer BallOperating Temperature -30° to 400°...

whoosh-motorsports.myshopify.com

Thanks. Looks interesting and shipping to Hawaii is not over $50 bucks like some of the others mentioned in this thread. Have you tried it?

 

[Pronto]

The Supra pcv also fits.