Notices
6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

Oil Cooler Bypass???

Thread Tools
 
Search this Thread
 
Old Apr 27, 2012 | 08:16 PM
  #1  
flamebuster's Avatar
flamebuster
Thread Starter
|
Posting Guru
Joined: Jan 2009
Posts: 1,321
Likes: 0
From: Mattawa Washington.
Oil Cooler Bypass???

After reading thru some of the tech. folder. I noticed that the oil cooler has a bypass that is in the oil filter housing and is set at 25 psi... Is it possible that some of the 6.0's over time have weakened say to 20 psi or lower and is allowing hot oil to around the cooler instead of forcing it thru, allowing our deltas to get a larger spread?
It would make sense for all those that have changed oil coolers,done flushes etc, all in trying to reach the under 5* spread.. Is there a way to test the pressure and adjust or replace the bypass?
Any techs that have run into this, and any thoughts on the probability?
 
Reply
Old Apr 27, 2012 | 08:41 PM
  #2  
kidoo's Avatar
kidoo
Elder User
Joined: Aug 2003
Posts: 933
Likes: 0
From: Québec
Interesting,
 
Reply
Old May 9, 2013 | 12:39 AM
  #3  
jswartz84's Avatar
jswartz84
Cargo Master
15 Year Member
Joined: Jun 2007
Posts: 2,723
Likes: 5
From: Roseburg, OR
I have been looking for a part number on this(oil cooler bypass valve). Anybody happen to run across it? Could this potentially be a problem for some?
 
Reply
Old May 9, 2013 | 01:33 AM
  #4  
Yahiko's Avatar
Yahiko
Fleet Owner
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
Originally Posted by flamebuster
After reading thru some of the tech. folder. I noticed that the oil cooler has a bypass that is in the oil filter housing and is set at 25 psi... Is it possible that some of the 6.0's over time have weakened say to 20 psi or lower and is allowing hot oil to around the cooler instead of forcing it thru, allowing our deltas to get a larger spread?
It would make sense for all those that have changed oil coolers,done flushes etc, all in trying to reach the under 5* spread.. Is there a way to test the pressure and adjust or replace the bypass?
Any techs that have run into this, and any thoughts on the probability?
Well after all it is a spring and they age and get weak. Maybe when someone does an oil cooler
if the price is not way out there they should just replace the by-pass assembly.
It really depends on cost.

Sean
 
Reply
Old May 9, 2013 | 03:27 AM
  #5  
RPM371's Avatar
RPM371
Senior User
Joined: Apr 2012
Posts: 341
Likes: 1
From: Texas
Great. Something new to worry about.
 
Reply
Old May 9, 2013 | 12:38 PM
  #6  
r2millers's Avatar
r2millers
Postmaster
Joined: Sep 2010
Posts: 3,472
Likes: 2
From: Southern Cal
Club FTE Silver Member

Originally Posted by flamebuster
After reading thru some of the tech. folder. I noticed that the oil cooler has a bypass that is in the oil filter housing and is set at 25 psi... Is it possible that some of the 6.0's over time have weakened say to 20 psi or lower and is allowing hot oil to around the cooler instead of forcing it thru, allowing our deltas to get a larger spread?
It would make sense for all those that have changed oil coolers,done flushes etc, all in trying to reach the under 5* spread.. Is there a way to test the pressure and adjust or replace the bypass?
Any techs that have run into this, and any thoughts on the probability?
If the real problem with the oil coolers is the size of the coolant passages and them plugging due to casting sand/coolant precipitate, then having an oil bypass bypass really wouldn't hurt eot #'s, maybe improve them.

Ideally, having a coolant bypass thru the oil cooler would be the right answer, allowing enough cooler to reach the egr and not allowing heat failures as typical today.
Not sure there's room, nor that would solve the problem?
 
Reply
Old May 9, 2013 | 03:48 PM
  #7  
Yahiko's Avatar
Yahiko
Fleet Owner
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
I think that they would have to really rework a few things.
That being said it could be done. If it were done then a PID for
by-pass should be added because you won't get any oil cooling
and it will get hot fast and cause other problems.
Out of the frying pan and into the fire! Type problems.

Sean
 
Reply
Old May 9, 2013 | 03:54 PM
  #8  
npccpartsman's Avatar
npccpartsman
Hotshot
20 Year Member
Liked
Loved
Community Favorite
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
Club FTE Silver Member

Originally Posted by flamebuster
After reading thru some of the tech. folder. I noticed that the oil cooler has a bypass that is in the oil filter housing and is set at 25 psi... Is it possible that some of the 6.0's over time have weakened say to 20 psi or lower and is allowing hot oil to around the cooler instead of forcing it thru, allowing our deltas to get a larger spread?
It would make sense for all those that have changed oil coolers,done flushes etc, all in trying to reach the under 5* spread.. Is there a way to test the pressure and adjust or replace the bypass?
Any techs that have run into this, and any thoughts on the probability?
I'm wondering if you're refering to the oil filter bypass that's part of the standpipe that will allow for filter bypass if the filter clogs??
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-1

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-2

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
story-3

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-4

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-5

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-6

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-7

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-8

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-9

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
Old May 9, 2013 | 07:42 PM
  #9  
Bullitt390's Avatar
Bullitt390
Certified Thread Hijacker
20 Year Member
Photogenic
Liked
Joined: Aug 2001
Posts: 14,441
Likes: 60
Club FTE Silver Member

Originally Posted by npccpartsman
I'm wondering if you're refering to the oil filter bypass that's part of the standpipe that will allow for filter bypass if the filter clogs??
Page 22: Lubrication System

Page 25: Lubrication System

Josh
 
Reply
Old May 10, 2013 | 12:12 AM
  #10  
jswartz84's Avatar
jswartz84
Cargo Master
15 Year Member
Joined: Jun 2007
Posts: 2,723
Likes: 5
From: Roseburg, OR
It looks like it is held in by the two torx screws that locks the standpipe in place. Its brass with a spring. I guess I am wondering if when it is open it bypasses the oil cooler? Is it possible for it to be open all the time and not sending all the oil through the cooler?
 
Reply
Old May 10, 2013 | 12:17 AM
  #11  
jswartz84's Avatar
jswartz84
Cargo Master
15 Year Member
Joined: Jun 2007
Posts: 2,723
Likes: 5
From: Roseburg, OR
Josh,
Thanks, I must have missed page 22. I assumed the filter was pre cooler.
 
Reply
Old May 10, 2013 | 05:51 AM
  #12  
npccpartsman's Avatar
npccpartsman
Hotshot
20 Year Member
Liked
Loved
Community Favorite
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
Club FTE Silver Member

Originally Posted by Bullitt390
Ahhh yes. I had forgotten that little feature (can't get those pic's at work sometimes). I've seen more than one of those that have grooves worn into them and IIRC it is a replaceable part but don't know that clogging of the oil side of the cooler has ever been a problem and I THINK that is a differential pressure bypass.
 
Reply
Old May 10, 2013 | 09:09 AM
  #13  
jswartz84's Avatar
jswartz84
Cargo Master
15 Year Member
Joined: Jun 2007
Posts: 2,723
Likes: 5
From: Roseburg, OR
I figured it was serviceable but can't seem to find a part number. I'm not really worried about a plugged oil cooler, i just wonder if this spring gets weak or no longer functions and let's oil bypass the cooler all the time. Because of the size, I wonder if it would even matter if it was bypassing
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bismic
6.0L Power Stroke Diesel
16
Apr 2, 2022 01:02 PM
High Binder
6.0L Power Stroke Diesel
6
Oct 21, 2010 08:19 PM
kupaa
1999 - 2003 7.3L Power Stroke Diesel
6
Dec 16, 2007 12:09 PM




All times are GMT -5. The time now is 09:41 PM.

story-0
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-05-30 18:33:59


VIEW MORE
story-1
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-2
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-3
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-4
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-5
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-6
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-7
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-8
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-9
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE