RJC PCV Valve ?

D

dsa87gn

Member
Joined
Sep 9, 2002
Anybody using it..hard to search for this..

I recently installed a ta49 and am creeping up the boost on it. i decided to check out my PCV which was no good. I had 3 delco spares and was pretty
surprised to find I could blow through 2 of them. I was kinda Po'd and remebered the one from RJC site that is supposed to be like a "lasts forever" deal.

any feedback on it ?
 
this might not have nothing to do with it but what kind of intake gasket are you running? one with or without a valley pan?
 
dsa87gn said:
Anybody using it..hard to search for this..

I recently installed a ta49 and am creeping up the boost on it. i decided to check out my PCV which was no good. I had 3 delco spares and was pretty
surprised to find I could blow through 2 of them. I was kinda Po'd and remebered the one from RJC site that is supposed to be like a "lasts forever" deal.

any feedback on it ?
Click to expand...


Not sure on the RJC check valve.... ( I have one, but not installed it yet). However, AutoZone's 1162 PCV valve has been used by many turbobuick members with good results and has been recommended by Eric at TurboTweak to lower BLM's.
They're inexpensive so why not give it a try?

dave
 
I've read on this board before that it's actually not meant to replace your original pcv vavle but it actually should be used in line with it. IIRC if you use it to directly replace your pcv valve it won't vent the pressure correctly and will vause over boosting intake pressures that are too high.
 
Pittsburghkid said:
I've read on this board before that it's actually not meant to replace your original pcv vavle but it actually should be used in line with it. .
Click to expand...

Correct... the RJC valve is a spring loaded CHECK valve, not a pcv valve, which contains an orifice to restrict the amt. of vacuum that will flow thru it.... the RJC, used alone, will allow an unregulated vacuum leak which will cause the car to run like crap and max out the blm as the ecm tries to compensate for the lean condition caused by the massive vac leak... Use the pcv mentioned above, and recommended by Eric (turbotweak), or the correct AC Delco (forget the number, but it's easily found with a search)... and install the rjc in series with the pcv.... if you must... I consider it (the rjc valve) highly unnecessary and a waste of time, money, complication, ect, with zero benefit.... MHO...:)
 
There may be some confusion here.

I've seen the check valves that most everyone sells but RJC does sell a PCV valve that goes in in place of the normal PCV. I have one in the intake now. WHen the intake is sitting on the motor again I can report back on results.
 
I have to disagree with the last part of this post.

bmackinnon said:
Correct... the RJC valve is a spring loaded CHECK valve, not a pcv valve, which contains an orifice to restrict the amt. of vacuum that will flow thru it.... the RJC, used alone, will allow an unregulated vacuum leak which will cause the car to run like crap and max out the blm as the ecm tries to compensate for the lean condition caused by the massive vac leak... Use the pcv mentioned above, and recommended by Eric (turbotweak), or the correct AC Delco (forget the number, but it's easily found with a search)... and install the rjc in series with the pcv.... if you must... I consider it (the rjc valve) highly unnecessary and a waste of time, money, complication, ect, with zero benefit.... MHO...:)
Click to expand...


If this RJC valve is supposed to function as does Kirban's, then I firmly believe ever TR should have one. IMO it would be an aide in preventing oil leaks. These are a POSITIVE stop meaning you CAN NOT blow backwards through them--thus preventing pressurizing the crank case. Everyone agrees that the AC-Delco PCV is not a positive stop. A friend of mine just saw the post about the one Eric recommends--bought one and brought it by--I could blow back through it.
 
Lee, you should be able to blow up through the bottom, but you should not be able to blow down through the top on the 1162 (unless there's something wrong with it).
Eric
 
AutoZone 1162 PCV Valve

Eric Stage I said:
Lee, you should be able to blow up through the bottom, but you should not be able to blow down through the top on the 1162 (unless there's something wrong with it).
Eric
Click to expand...


X2

Picked one up earlier this year and did not check till I got home....guess what.....(I could blow down thru the top too.)....obviously something wrong....
So, next one, I checked it in the store to make sure it was working properly before I left the store. Works good!

Best advise is to check these before you buy them, as there's lots of defective units of all manufacturers out there....so you need to check them first before you install it.


dave
 
I posted a part number for a Clippard check valve you can use as an inline PCV with a stocker that will not leak or throw off the airflow in the PCV circuit. If you hunt around you can probably find the post.
 
I have been running the RJC PCV Valve in my car, in place of the original, and have had no problems at all. Maybe I just got lucky.
 
I will have to pull out one of my logs from my other computer and let you know. Hopefully I can get it for you sometime later today.
 
I dont know if this is right or not but my logs show BLM at 128 all the time. I am also running Erics SD chip. Hope that helps.
 
Wow am I getting confused. I guess it does have it and mine holds steady at 128. Sorry about that, still learning how all this works.
 
Not sure if this is same thing SE Turbo sells however it works the same. I run it w/o the PCV. It did make the BLM's change to where you think there might be a slight chip calibration issue however not where it pegged anything to one extreme or the other. It did stop oil leaking under WOT blasts from leaking rear mail seals and VC breathers which is why I installed it. I believe the fix is to run this with a PCV so it acts like a stocker and eliminates leaks under pressure. The Kirban unit didn't work for me and because not enough crankcase vapor was being sucked in the engine at idle and was coming out my VC breathers and coming in my car when the windows were down.
 
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