Put your CR Pressure Relief Valves back in! - Page 3 - Dodge Diesel - Diesel Truck Resource Forums

3rd Gen High Performance and Accessories (5.9L Only) Talk about Dodge/Cummins aftermarket products for third generation trucks here. Can include high-performance mods, or general accessories. THIS IS FOR THE 5.9L ONLY!

Put your CR Pressure Relief Valves back in!

Reply

 
 
 
Old 01-07-2010, 05:00 PM
  #31  
tcr
Registered User
 
tcr's Avatar
 
Join Date: Sep 2003
Location: Austin, TX
Posts: 3,188
Thanks: 0
Thanked 0 Times in 0 Posts
Through the CP3, via 2 lines instead of one, more of the "cushioning effect". I guess bleed effect back might be a better description. I'm just asking, I have no idea yet I've had a dual line since they came out and have had zero issues. I still believe the majority of injector issues stem from lack of filtration teamed up with additional pressure.
tcr is offline  
Reply With Quote
Old 01-11-2010, 12:00 PM
  #32  
Registered User
 
cquestad's Avatar
 
Join Date: Dec 2003
Location: Boise, Idaho
Posts: 5,540
Thanks: 0
Thanked 0 Times in 0 Posts
XLR8R...is that a "nah-nah-anah-nah" I am reading?

Talk about self promoting...jeessssseeeeeeee.

There needs to be a new PRV that takes say 30ksi...that would be perfect.

Is the PRV in an 09 a differrent part number?
cquestad is offline  
Reply With Quote
Old 01-11-2010, 04:44 PM
  #33  
Registered User
 
XLR8R's Avatar
 
Join Date: Nov 2005
Location: Pattonville, Texas
Posts: 7,783
Thanks: 0
Thanked 0 Times in 0 Posts
If my intent was to belittle those who have experienced parts failure from this issue, it would be readily apparent.

I don't follow your "self-promotion" tangent either - I post on here to disseminate information and offer advice... everyone gets to choose what to do with do each.
XLR8R is offline  
Reply With Quote
Old 03-01-2010, 11:19 AM
  #34  
Registered User
 
hoot's Avatar
 
Join Date: Feb 2002
Location: SE PA
Posts: 742
Thanks: 0
Thanked 0 Times in 0 Posts
Originally Posted by Don M View Post
Its Friday afternoon and this weeks count of cracked injector bodies stands at 8. Thats 8 sets with one cracked injector each this time. Counting downtime, lost revenue, repair costs, etc you have quite a bit of cash there.
So do you
hoot is offline  
Reply With Quote
Old 03-01-2010, 11:22 AM
  #35  
Registered User
 
hoot's Avatar
 
Join Date: Feb 2002
Location: SE PA
Posts: 742
Thanks: 0
Thanked 0 Times in 0 Posts
Hey how about instead of a new PRV adding a hydraulic dampener. Basically a steel cylinder with a piston and a heavy spring... maybe belleville washers.

Patent Pending
hoot is offline  
Reply With Quote
Old 04-03-2010, 09:09 AM
  #36  
Registered User
 
Join Date: Jan 2007
Location: Castaic CA Winnemucca NV
Posts: 478
Thanks: 0
Thanked 0 Times in 0 Posts
Originally Posted by doug60 View Post
Who is going to be first in offering the Super Releif Valve ?
(Oh good another 600.00 dollar part to buy)

I didn't have to spend 600 bucks for a super relief valve. Just reading this I moved and raised my right leg and WOOOOOOOOOF over presure relieved.
n2moto is offline  
Reply With Quote
Old 04-13-2010, 12:25 PM
  #37  
Registered User
 
Join Date: Feb 2006
Location: West Virginia
Posts: 874
Thanks: 0
Thanked 0 Times in 0 Posts
so where do you get it....who sells it?
Originally Posted by TCDiesel View Post
Yes.. this valve is now available....It is known as CPRV (Constant pressure relieve Valve).Its a simple mod and performs very well.
Dan Marino is offline  
Reply With Quote
Old 09-24-2010, 02:45 PM
  #38  
Registered User
 
DIESELTORK's Avatar
 
Join Date: Jun 2010
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Hi

Could some of you CR experts give me a hand or better yet, your knowledge? The CR pressure relief valve has a history of failure. I have been looking on the web for a few days to find out why.
This is what I've heard. (1) The spring weakens and looses its force (2) The seat and poppet become etched (3) The poppet tip breaks off
What have you guys experienced? Have you done any testing on the CR relief valve?

Thanks for helping me out.
Rob
DIESELTORK is offline  
Reply With Quote
Old 09-26-2010, 11:22 PM
  #39  
Registered User
 
XLR8R's Avatar
 
Join Date: Nov 2005
Location: Pattonville, Texas
Posts: 7,783
Thanks: 0
Thanked 0 Times in 0 Posts
Most folks don't disassemble roached PRVs for inspection - you might get the info you want from the aftermarket supplier...
XLR8R is offline  
Reply With Quote
Old 11-27-2010, 07:17 PM
  #40  
Registered User
 
2006BLKMegacab's Avatar
 
Join Date: Dec 2008
Location: Bashaw Alberta
Posts: 477
Thanks: 0
Thanked 1 Time in 1 Post
not looking to get called an idiot just looking for info?

I'm going to assume that this self inflicted issue would apply to the 6.7's as well? i have just purchased an H&S mini maxx for my 08 and they reccomend that i buy a fuel rail plug or shim kit if i run their programmer. I wasnt planning on installing a plug and would have a hard time gettin gtalked into it now after reading this thread.
Thanks in advance guys
2006BLKMegacab is offline  
Reply With Quote
Old 11-27-2010, 09:18 PM
  #41  
Registered User
 
XLR8R's Avatar
 
Join Date: Nov 2005
Location: Pattonville, Texas
Posts: 7,783
Thanks: 0
Thanked 0 Times in 0 Posts
Yes.
XLR8R is offline  
Reply With Quote
Old 11-27-2010, 10:03 PM
  #42  
Registered User
 
2006BLKMegacab's Avatar
 
Join Date: Dec 2008
Location: Bashaw Alberta
Posts: 477
Thanks: 0
Thanked 1 Time in 1 Post
all righty then, thanks for the intel haha, believe me when i say its greatly appreciated haha
2006BLKMegacab is offline  
Reply With Quote
Old 11-28-2010, 03:13 AM
  #43  
Registered User
 
Brian08Q35004x4's Avatar
 
Join Date: Jan 2009
Location: This Nazi state of California 2nd home Gilbert AZ under God
Posts: 338
Thanks: 0
Thanked 0 Times in 0 Posts
Originally Posted by Don M View Post
Its Friday afternoon and this weeks count of cracked injector bodies stands at 8. Thats 8 sets with one cracked injector each this time. Counting downtime, lost revenue, repair costs, etc you have quite a bit of cash there.
Don what do you recommend? I see the plug and shim kits or after market relief valves. What is the best option to go with that lasts is dependable and does not shorten injector life.
Brian08Q35004x4 is offline  
Reply With Quote
Old 08-23-2013, 11:47 PM
  #44  
Registered User
 
Join Date: Nov 2002
Posts: 162
Thanks: 0
Thanked 0 Times in 0 Posts
Sounds like a pilot operated relief valve (miniaturized) rated for 1.5X highest expected pressure would be the ticket. I cannot imagine why anyone would ever even think about disabling or removing a pressure relief device in a high pressure system with flammable liquid involved. The ability to modulate pressure relief would be infinitely easier on the tubes and injectors/nozzles.
commtrd is offline  
Reply With Quote
Old 10-27-2013, 06:37 AM
  #45  
Banned
 
Onat Dts's Avatar
 
Join Date: Oct 2013
Location: Turkey
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Great info,
thanks for share.
Onat Dts is offline  
Reply With Quote

Thread Tools
Search this Thread
Quick Reply: Put your CR Pressure Relief Valves back in!


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.