It sounds like you're testing it right, I second the port is probably plugged internally.
Try this other port here, see if you get different results. I bet you have oil pressure. With only 3psi your engine would have been toast after a few days of driving.
So lets clear the air here... How many miles did you drive with the gauge showing zero oil pressure? Because if it was more than one, you would have had a glitter bomb in your oil pan, spun bearings, and potentially a locked up engine.
How did you verify oil pressure with your mechanical gauge?
Second photo is the AC condenser. If it didn't work prior, I wouldn't sweat it.
As for the oil cooler, I respect the ingenuity lol but otherwise nah sometimes they are just a bear to put together.
The one at home depot doesnt have the sharp edge on it that a machinists straight edge has. With rounded corners a feeler blade can push it up easier rather than more like a go/no go gauge.
Heres what mine looks like. Notice, not a ruler, plain metal, its only supposed to be used as a machined...
That straight edge will not be sufficient, it is not machined.
You'll need something like this.
Easiest way to check for flatness is use a machinists straight edge and try to slide a 0.003" feeler blade in. No blade going in = good.
As for the previous leakage, did it have the stamped metal...
And something else I forgot existed... Old and new style lift pumps....
Luckily, loads of good info here;
https://www.dieselhub.com/repair/7.3-idi-fuel-pump.html
Had to go look it up, stock is 24 fins, turbo is 30, which is what this one is based off of, except its stainless. Eager to see if it helps with my tempersture saturation issue on my truck, and as a 'future proof' for my dads truck.
Whoever said doing an oil pan was a pain...
Also did the rear main seal. Now prepped for paint... Whenever my old man gets around to it. The painting is his gig.
They are definitely high volume pumps.
I once ran a semi with the oil feed line off of the turbo for 6 seconds. Easily a gallon all over the engine... The ground... the wall... Sheesh.
That is sort of accurate. The oil pressure gauge is post oil filter. If the filter was restricted you would have higher pressure pre filter.
Seems like these idis dont have high oil pressure to begin with. At idle all of mine sit at about 17psi, and revved up it jumps to 40ish
I have done a few. You can take the injection pump out, Then you take off the gear cover. If you leave the gear on the engine, it'll keep it in time. It is easy tp bump off though, so you have to be careful!
Oil cooler is on the drivers side :cheers:
If oil is collecting in the valley pan, my money is on pump shaft O ring, or pump gear housing cover. It is only siliconed on, and after 20+ years im sure its a little... Tired
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