Oil cooler header compatibility

[idiwelder]

After installing a mechanical oil gauge on the 83 6.9 I have be working on getting roadworthy again I discovered that on cold startup the oil pressure is 100 psi+ that will slowly start to drop according to the Bosh mechanical gauge I'm using. Im the past few months I have had several oil filters blow out seals( which I now believe to be because of the oil pressure).

Does this sound like the pressure regulating valve in the oil cooler

Will the headers from a 83 cooler fit a new two ring style cooler or will I need the whole thing.


Sent from my iPhone using Tapatalk

 

[shawn deere]

I think the O ring kit is interchangeable if you want to rebuild the one you got. It just takes two kits for the extra 2 O rings.

 

[idiwelder]

Ok so o I should be able to get the 2 o-ring kits to rebuild mine or use a two o-ring design cooler with these old headers I've searched info on the 6 ring coolers quite a bite on the topic but it doesn't talk about much besides the fact that you can't get the 3 o-rings anymore so all information on it would be appreciated


Sent from my iPhone using Tapatalk

 

[typ4]

I think the O ring kit is interchangeable if you want to rebuild the one you got. It just takes two kits for the extra 2 O rings.

Not!!!

 

[shawn deere]

Not!!!

Damn. Im gonna quit telling people stuff unless i got my hands on it.
Typ4 knows his stuff

 

[idiwelder]

Ok would I still be able to use my original headers with a 2 o-ring oil cooler or are they different as well?


Sent from my iPhone using Tapatalk

 

[IDIBRONCO]

I believe they are different as well.

 

[idiwelder]

Since I'm in no hurry to have the truck running Im going to attempt to pull of the headers and measure the small o-ring thickness and ID so that I can go about searching for replacements.


Sent from my iPhone using Tapatalk

 

[shawn deere]

To pull the cooler on a '90 7.3 idi you need to
Remove ps pump
Pull steering column or at least the telescoping steering shaft

Or split the cooler before pulling it out

That much i do know

 

[idiwelder]

Thnx shawn deere I like that method since I can keep the cooler in one piece. It wasn't leaking at the orings internally or externally ( although I might open it up and get measurements so I can try to find some new orings that will fit )but I want to check the pressure valve to see if it's causing my high oil pressure. The truck did sit for about 5-6 years


Sent from my iPhone using Tapatalk

 

[shawn deere]

Thnx shawn deere I like that method since I can keep the cooler in one piece. It wasn't leaking at the orings internally or externally ( although I might open it up and get measurements so I can try to find some new orings that will fit )but I want to check the pressure valve to see if it's causing my high oil pressure. The truck did sit for about 5-6 years


Sent from my iPhone using Tapatalk

I almost bet that pressure valve is accessible with the cooler installed if thats all your after

 

[shawn deere]

K so ive been huffin paint fumes and im no expert buut there are 3 plugs on my cooler on the filter side
One is a drain i believe
One i dunno
One might actually be the pressure valve your looking for

You must be registered for see images attach

 

[shawn deere]

And i think typ4 has orings he can sell you when he gets back from vacation

 

[typ4]

I likely have the orings you need. The regulator can be fixed.

 

[typ4]

The regulator is not accessible externally.