Upgraded HPOP Delivery O-rings? - Ford Powerstroke Diesel Forum
Please Visit our Site Sponsors
6.0L Performance Parts Discussion What has or has not worked for you?

Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
LinkBack Thread Tools Display Modes
Old 08-07-2009, 04:43 AM
Compression Ignition Addict

Join Date: May 2009
Location: Morristown, TN
Posts: 189
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Upgraded HPOP Delivery O-rings?

Does anyone know of any "upgraded" or "better" O-rings than could replace the ones on the HPOP delivery tubes? I am seing alot factory o-rings that flatten out or tear. 75% of the time when a Powerstroke(especially a 6.0) comes in for cold start problems or cranks but will not start, we are seeing these o-rings defective.We also check the PCM and FICM for the latest cold start strategy. Of course, if the o-rings have failed then the HPOP cannot build enough pressure to fire the injectors. I am very close friends with a "mod friendly" dealer and we are trying to come up with a solution to this problem. Anyone have any input? Thanks
Reply With Quote Quick reply to this message
Sponsored Links
Old 08-07-2009, 05:02 AM
Compression Ignition Addict

Join Date: Feb 2009
Posts: 258
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
The O-Ring materials that hold up best to high temperatures and chemical exposure are harder and require better machining on the sealing surfaces to obtain a good initial seal. If the surfaces are nice and you can get a good initial seal then a PTFE o-ring should work. Otherwise, a Kalrez 4097 O-ring might be a good choice. In the quantities that your talking about McMaster-Carr is a great source for o-rings. McMaster-Carr
Reply With Quote Quick reply to this message
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -8. The time now is 05:52 PM.

Powered by vBulletin® Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.