GalantVR4.org The Mitsubishi Galant VR-4 Forum
Galant VR-4 Forums » Galant VR-4 » Newbies » A simple (I hope) PCV/catch can question
Previous thread Next thread

A simple (I hope) PCV/catch can question


mk2davis
Junior Member
398/2000


Galant VR-4 org Post #: 1248104 posted 01/07/20 01:41 PM     Remind Me!  Send Private Message   Edit Post      
I know this subject has been covered and covered and covered...

I did read PCV info , yet I still have a question.

I want to install a catch can in between VC and IM, and if I read the article right the order goes VC -> PCV -> Catch can -> check valve -> IM

I understand the reason for installing the check valve in between the CC and the IM.

What I don't understand is why keep the PCV in between the VC and the CC. Isn't the PCV and check valve doing the same thing, as the PCV is a fancy check valve? If so, why have both? It seems like this is impeding the flow unnecessarily.

I already have a CC in between the VC vent and the preturbo.

Thanks for helping me understand.

Posts: 90 | From: Ventura, CA | Member Since: 03/01/15 | IP: (47.148.51.252) | Report this post to a Moderator

CutlassJim
poop load of room
1799/2000
1788/2000
935/1000
912/1000


Galant VR-4 org Post #: 1248108 posted 01/08/20 08:14 AM     Remind Me!  Send Private Message   Edit Post      
You are correct. Except I would say the PCV is a very unfancy check valve.

I have just a barb going to my valve cover.

I also had a weird situation where I have very low vacuum and the PCV would rattle and sound like a ball bearing in a paint can. Bye bye



ALL DSM's are advanced and ALL Evo's retarded
I love my crazy mother!!!

Posts: 1592 | From: Manchester, NH | Member Since: 07/17/06 | IP: (173.14.186.153) | Report this post to a Moderator

mk2davis
Junior Member
398/2000


Galant VR-4 org Post #: 1248116 posted 01/08/20 05:23 PM     Remind Me!  Send Private Message   Edit Post      
CutlassJim, do you have to pass smog in NH? I'm wondering if I'll have trouble with the smog check in CA if the check valve isn't technically a PCV. I'll probably save the stock piece for the biannual event.

I saw on JNZ tuning that the pcv fitting is supposed to be British threads? Did you weld onto the VC, use the fitting from JNZ, or do something else?

Posts: 90 | From: Ventura, CA | Member Since: 03/01/15 | IP: (47.148.51.252) | Report this post to a Moderator

tektic
Senior Member


Galant VR-4 org Post #: 1248119 posted 01/08/20 10:02 PM     Remind Me!  Send Private Message   Edit Post      
I drill and tap to 1/4" npt. I used over size barbs and a matching in line check valve.

Posts: 1473 | From: ronkonkoma, ny | Member Since: 12/19/12 | IP: (69.201.190.246) | Report this post to a Moderator

CutlassJim
poop load of room
1799/2000
1788/2000
935/1000
912/1000


Galant VR-4 org Post #: 1248124 posted 01/09/20 11:32 AM     Remind Me!  Send Private Message   Edit Post   
We do not have a "smog" like some states have. And the car is considered an antique in NH so they are even more lenient. And the owner of the garage is a friend and also owns a GVR4.

I used another one of the fittings that's on the IM side of the PCV. Same thread and same hose size.



ALL DSM's are advanced and ALL Evo's retarded
I love my crazy mother!!!

Posts: 1592 | From: Manchester, NH | Member Since: 07/17/06 | IP: (173.14.186.153) | Report this post to a Moderator


Pages: 1
Previous thread Next thread

Extra information
0 registered and 24 anonymous users are browsing this forum.

Galant VR4.org Moderator:  Hertz, curtis, steve, atc250r, jcgalntvr4-244, cheekychimp, jepherz, Rausch, toybreaker, iceman69510, pot, FlyingEagle 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Thread views: 220

Rate this thread


News & Events: News | Events
Galant VR-4: Newbies | General VR4 Discussions | Technical Discussions | How To and Info Archive
Marketplace: Parts For Sale | Cars For Sale | Good Guys | Bad Guys
Community: Members' Showcase

Contact Us | Privacy statement GalantVR-4.org

Generated in 0.092 seconds in which 0.075 seconds were spent on a total of 14 queries. Turbo powered.


Hertz's Galant VR-4 Page