E90Post
 


Motormavericks
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > RB Turbo N54 PCV valves now available



Reply
 
Thread Tools Search this Thread
      06-20-2013, 06:19 PM   #45
kfrazie1
Lieutenant
11

 
kfrazie1's Avatar
 
Drives: 335i
Join Date: Aug 2010
Location: NY


Posts: 476
iTrader: (4)

Quote:
Originally Posted by tinnsoldaten View Post
Got mine , the valve cap was a little too tight or your upgraded valve was little too thick.

They wouldn`t mate properly , had to file down slightly on the valve cap , cleaned and problem solved. They look and feel solid.
Also had to file mine down when I got it about a year ago.
__________________
Montego Blue E90 335i
7" VRSF IC | OFT Tune | DCI | RB PCV | Secondary CAT Delete & CYBA 3.75" Tips | M3 Front | CSL Trunk | 19" LC Dyna Wheels
Appreciate 0
      06-20-2013, 07:54 PM   #46
Rob@RBTurbo
BimmerPost Supporting Vendor
20


 
Rob@RBTurbo's Avatar
 
Drives: 335I
Join Date: Jan 2008
Location: St. Louis, MO


Posts: 1,095
iTrader: (4)

Payment info is on the first page first post.

Quote:
Originally Posted by marcvtec View Post
Where do I pay..
I need one
I've heard this a couple times, it seems it is not a perfectly direct fit on all. However it was on the components I designed it for. At the end of the day it seems from what I've been told the fix is really minor and simple. Glad it worked out for you and you see the difference.

Quote:
Originally Posted by tinnsoldaten View Post
Got mine , the valve cap was a little too tight or your upgraded valve was little too thick.

They wouldn`t mate properly , had to file down slightly on the valve cap , cleaned and problem solved. They look and feel solid.
Thanks for the purchase, I have been getting these out within a day or two tops.

Quote:
Originally Posted by carlsontheflyer View Post
Payment sent!

Thanks for your hard work, Rob!
Appreciate 0
      06-21-2013, 09:56 AM   #47
raceyBMW
king of the hills
United_States
29

 
raceyBMW's Avatar
 
Drives: 335i coupe
Join Date: Dec 2006
Location: Denver, CO


Posts: 2,822
iTrader: (1)

Garage List
1994 530i  [4.25]
2007 335i Coupe  [4.07]
Quote:
Originally Posted by tinnsoldaten View Post
Got mine , the valve cap was a little too tight or your upgraded valve was little too thick.

They wouldn`t mate properly , had to file down slightly on the valve cap , cleaned and problem solved. They look and feel solid.
I had this as well.
Appreciate 0
      06-21-2013, 04:09 PM   #48
kiteboy
First Lieutenant
France
4

 
kiteboy's Avatar
 
Drives: E92 Stage 2 BR Performance
Join Date: Apr 2010
Location: France


Posts: 376
iTrader: (0)

Send a message via MSN to kiteboy
Thx rob received it today

I had ordered also in my dealer OEM check valve and next week i will replace both pvc valve....
Appreciate 0
      06-22-2013, 03:05 PM   #49
Rob@RBTurbo
BimmerPost Supporting Vendor
20


 
Rob@RBTurbo's Avatar
 
Drives: 335I
Join Date: Jan 2008
Location: St. Louis, MO


Posts: 1,095
iTrader: (4)

Great news! Thanks and good luck on the swap!

Quote:
Originally Posted by kiteboy View Post
Thx rob received it today

I had ordered also in my dealer OEM check valve and next week i will replace both pvc valve....
Appreciate 0
      06-24-2013, 11:29 AM   #50
tcw
Captain
13

 
Drives: 2008 335i
Join Date: Jan 2012
Location: Atlanta, GA


Posts: 722
iTrader: (2)

Quote:
Originally Posted by Rob@RBTurbo View Post
I've heard this a couple times, it seems it is not a perfectly direct fit on all. However it was on the components I designed it for. At the end of the day it seems from what I've been told the fix is really minor and simple. Glad it worked out for you and you see the difference.
I think it is just because the tolerances are so tight. I installed my last night and I though I ran into this issue. But looking at it, it looked like it should BARELY fit. So I kept playing with it and I was eventually able to get it to slide in. Again it was a really tight fit, but no sanding was needed. Another problem might be, the four pieces of plastic that guide the valve in are pretty thin. If you were to deform them slightly trying to get the valve in, then I'm guessing it wouldn't fit.

Also a question, how much resistance is the stock valve suppose to put up? I was able to easily push in the orange plastic piece on mine. I could blow though it easily in one direction, but not the other like a check valve.

Thanks Rob!
__________________
2008 335I E92, AW, VFF700, 18" Forgestar F14, M3 front/side, M-tech rear, AMS IC, H&R Touring Cup Kit suspension, HID AE, ER Charge Pipe & Synapse BOV, CIC Retrofit, Quafie, DSS, Defiv Lockdown, SPEC 2+/Steel SMFW, Walbro 450
Appreciate 0
      06-24-2013, 11:40 AM   #51
Rob@RBTurbo
BimmerPost Supporting Vendor
20


 
Rob@RBTurbo's Avatar
 
Drives: 335I
Join Date: Jan 2008
Location: St. Louis, MO


Posts: 1,095
iTrader: (4)

You are correct. It was by design to fit tightly in those "fingers", which is to hold that valve snug in place.

The valve flow is directional, it seals tight one way and is variable flow the other. From a simple test of blowing through, it would have results of 0 flow one way and be fairly simple to blow through the other way.

The check valve (other side of the PCV system), allows airflow both ways- one way is wide open but has an airflow limiter in the other direction.

Rob

Quote:
Originally Posted by tcw View Post
I think it is just because the tolerances are so tight. I installed my last night and I though I ran into this issue. But looking at it, it looked like it should BARELY fit. So I kept playing with it and I was eventually able to get it to slide in. Again it was a really tight fit, but no sanding was needed. Another problem might be, the four pieces of plastic that guide the valve in are pretty thin. If you were to deform them slightly trying to get the valve in, then I'm guessing it wouldn't fit.

Also a question, how much resistance is the stock valve suppose to put up? I was able to easily push in the orange plastic piece on mine. I could blow though it easily in one direction, but not the other like a check valve.

Thanks Rob!
Appreciate 0
      06-24-2013, 03:26 PM   #52
roadkillrob
Brigadier General
United_States
55

 
Drives: 2008 335Cic, 2011 X5 35i
Join Date: Jul 2007
Location: Boston


Posts: 3,887
iTrader: (14)

I put a little bit of light grease on mine and it took a little playing but it slide right into the cap once you get the angle correct!

Rob - just to make sure, you reuse the o-ring off the old check valve on the new one or does it not need it? (talking about the valve itself, not the cover)
__________________

2008 E93 335i, GIAC Stage 2, HPF IC, Injen Intake, Defective AR Design DP's with useless cats
2014 X3 35i JB Stage 1
Appreciate 0
      06-24-2013, 04:06 PM   #53
Rob@RBTurbo
BimmerPost Supporting Vendor
20


 
Rob@RBTurbo's Avatar
 
Drives: 335I
Join Date: Jan 2008
Location: St. Louis, MO


Posts: 1,095
iTrader: (4)

The intent was to not need to reuse the original valves o-ring. But it certainly wouldn't hurt either, provided the valve still slips into final position after its in place. In short, shouldn't be necessary as no one else has likely done it- but don't see how it could hurt anything either.

Btw, I hope to have the aluminum replacement caps available in the next 2 weeks.

Thanks,
Rob

Quote:
Originally Posted by roadkillrob View Post
I put a little bit of light grease on mine and it took a little playing but it slide right into the cap once you get the angle correct!

Rob - just to make sure, you reuse the o-ring off the old check valve on the new one or does it not need it? (talking about the valve itself, not the cover)
Appreciate 0
      06-26-2013, 11:11 PM   #54
raceyBMW
king of the hills
United_States
29

 
raceyBMW's Avatar
 
Drives: 335i coupe
Join Date: Dec 2006
Location: Denver, CO


Posts: 2,822
iTrader: (1)

Garage List
1994 530i  [4.25]
2007 335i Coupe  [4.07]
I transferred the o-ring from the old to the new, no issues, so its probably a take it or leave it deal.
Appreciate 0
      06-27-2013, 12:09 PM   #55
Rob@RBTurbo
BimmerPost Supporting Vendor
20


 
Rob@RBTurbo's Avatar
 
Drives: 335I
Join Date: Jan 2008
Location: St. Louis, MO


Posts: 1,095
iTrader: (4)

+1

Quote:
Originally Posted by raceyBMW View Post
I transferred the o-ring from the old to the new, no issues, so its probably a take it or leave it deal.
Appreciate 0
      06-27-2013, 12:56 PM   #56
kiteboy
First Lieutenant
France
4

 
kiteboy's Avatar
 
Drives: E92 Stage 2 BR Performance
Join Date: Apr 2010
Location: France


Posts: 376
iTrader: (0)

Send a message via MSN to kiteboy
I ve just replaced all my valve.

Pcv2 valve R&B and new check valve

__________________
335i Pack M Stage 2 BR Performance 403,5 hp 582n.m/Bilstein B14 pss/R&B PVC2 valve/K&N air filter/Spearco FMIC/pre cata empty/EBC Redstuff,aviation hose, BMW Performance exhaust

Last edited by kiteboy; 06-27-2013 at 03:21 PM.
Appreciate 0
      08-07-2013, 08:15 PM   #57
Rob@RBTurbo
BimmerPost Supporting Vendor
20


 
Rob@RBTurbo's Avatar
 
Drives: 335I
Join Date: Jan 2008
Location: St. Louis, MO


Posts: 1,095
iTrader: (4)

FYI. There have been a few in the past year or so who have reported accidentally overtightening their PCV valve cap and cracking or breaking it while doing as such. It is plastic and can be a little brittle at times, so it can happen. We finally have the cure for that, the RB PCV Screw-On Cap for the N54. This compliments the RB PCV Valve nicely as well as adding some security in knowing the cap breaking is no longer much of a concern.

Note: Be careful even with this new robust cap as the valve cover is still plastic and can break if the cap is tightened excessively, which again spells problems.

Due to likely low interest, and the need to (hopefully) recover investment in this cap, we have to price it at $80 plus shipping.
Attached Images
    
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 03:28 AM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST