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Old Mar 4, 2026 | 08:16 AM
  #31  
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Thank you all. Yall always notice something out of the normal if it's there. I have no idea what is normal.
 
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Old Mar 4, 2026 | 08:47 AM
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Originally Posted by Ford.Dude
Very much so. Could have been extreme heat. BUT how does the high pressure oil system's health affect high oil temps?
It doesn’t. High oil temps affect the high pressure oil system’s health. O-rings, and gaskets getting burned, not to mention that burned goop traveling around the engine.
 
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Old Mar 4, 2026 | 12:44 PM
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Originally Posted by Baylinerchuck
It doesn’t. High oil temps affect the high pressure oil system’s health. O-rings, and gaskets getting burned, not to mention that burned goop traveling around the engine.
Indeed. As yall can tell there is some goop trapped by the screen. Another thing is the the screen has a a hole. I'm not sure if I did that while I was getting oil out of the reservoir. I'll replace the ipr screen.

I need the o ring for the j tube where it bolts to the underside of the intake. Anyone have a suitable source to order from?
 
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Old Mar 4, 2026 | 01:15 PM
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At McMaster, you can almost get any material or size you want.
 
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Old Mar 4, 2026 | 02:45 PM
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IMO, if you didn't see EOT values WELL OVER 300 degrees, then you have an EOT sensor issue (or it wasn't being monitored all the time while driving).

That can damage a lot of o-rings!
 

Last edited by bismic; Mar 4, 2026 at 02:56 PM.
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Old Mar 4, 2026 | 02:57 PM
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You might consider this also:

https://www.iprresearch.com/Ford-6.0...er-Screen.html
 
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Old Mar 4, 2026 | 03:07 PM
  #37  
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Originally Posted by bismic
IMO, if you didn't see EOT values WELL OVER 300 degrees, then you have an EOT sensor issue (or it wasn't being monitored all the time while driving).
Those values are monitored 100% of the time bismic and I haven't seen temps over 220 eot/ect. Now I noticed my temp jumped up to 180 from a cold start within 3 minutes of driving light which normally it would take at least 10 miles at 70mph to hit that during the cold months. That's went I parked it. Found i was over 2 gallon short on coolant. The hose for the j tube and water pump have leaked waaay more than I thought.

Thanks TMT. I knew you had a place you liked but I couldn't remember the name of it.
 
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Old Mar 4, 2026 | 03:59 PM
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As I posted, then I have some doubts on your sensor's accuracy. Maybe the sensor got coated and insulated the value, or maybe it is off in its calibration, etc. But unless you had an aftermarket part with cheap plastic, it does not deform under 320 (or so) degrees F. I acknowledge that the screen is not something that can be inspected over the internet, but it certainly looks deformed by heat. Probably doesn't need a ton of exposure time once temps get that high.

Also, you have to remember that the EOT sensor is after the oil cooler. It should be about the lowest temperature that the oil is achieving. Oil within the engine can easily exceed that value by 50 *F or more. IMO the o-ring (soft goods) damage also looks temperature related.

Edit: and also, maybe the oil cooler became plugged enough to activate the cooler bypass flow - making matters worse from a temperature perspective.
 

Last edited by bismic; Mar 4, 2026 at 04:10 PM.
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Old Mar 4, 2026 | 04:13 PM
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When buying o-rings and gaskets for the oil system, I look for AT LEAST a 375*F temperature rating. Hardness and compression set properties are also important.
 

Last edited by bismic; Mar 4, 2026 at 04:27 PM.
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Old Mar 4, 2026 | 04:25 PM
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When Ford added an additional layer to the oil cooler, was the cooler physically deeper?
 
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Old Mar 4, 2026 | 04:54 PM
  #41  
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I know what you're saying bismic and definitely appreciate the feedback. My previous post I was meaning to add my koeo temps have always been within a few degrees of each other eot and ect. Still you could be right.




 
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Old Mar 4, 2026 | 05:11 PM
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Appreciate the additional pics. Good additions to the thread.
 
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Old Mar 4, 2026 | 05:50 PM
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Below is a link to a youtube video that shows an EBay oil cooler screen (and compares it to a Ford one). If I am getting it correct from his video, the EBay screen handle appears to have the "bend" in the handle to begin with, but the Ford one is straight. SO .............. I say I was probably wrong on the bend. If not heat related (and the sludge on top the screen STILL looks like a result of over-heating to me), then an aftermarket screen. Note that it is common to see the screen sucked in directly above the port leading to the HPOP - especially when the screen gets "blinded off".


RiffRaff shows an OEM oil cooler sump (HPOP sump) screen and it has a straight handle.

https://www.riffraffdiesel.com/oil-c...er-03-07-6-0l/
 

Last edited by bismic; Mar 5, 2026 at 07:01 AM.
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Old Mar 4, 2026 | 06:39 PM
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Dimensions don't appear to have changed (at least not by much for the depth dimension - maybe by .055" x 2 for an extra cooling plate and fin space). Information below is from BulletProofDiesel.

The original oil cooler is built with the following features:
1. It is a stacked-plate heat exchanger design.
2. It has basic outer dimensions of 6 ¾ x 5 ⅛ x 3 inches.
3. It has an oil port in and an oil port out.
4. It has a coolant port in and coolant port out.
5. Is comprised of aluminum.
6. It has 11 oil layers with an average height of approximately .10 inches per layer, filled with cooling fins.
7. It has 10 coolant layers with an average height of .055 inches per layer, filled with cooling fins.
.
The “improved” oil cooler has the following features:
1. It is a stacked-plate heat exchanger design.
2. It has basic outer dimensions of 6 ¾ x 5 ⅛ x 3 inches.
3. It has an oil port in and an oil port out.
4. It has a coolant port in and coolant port out.
5. Is comprised of aluminum.
6. It has 11 oil layers with an average height of approximately .10 inches per layer, filled with cooling fins.
7. It has 11 coolant layers with an average height of approximately .055 inches per layer, filled with cooling fins.
.
Analysis: Between the old and new version there is an added layer of coolant pathways. With the increase from 10 coolant pathways to 11, the manufacturer has added ~10% more coolant path through the cooler.
 

Last edited by bismic; Mar 4, 2026 at 08:40 PM.
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Old Mar 9, 2026 | 03:00 PM
  #45  
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Has anyone bought an OEM oil cooler lately?
 
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