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Old 08-13-2012, 09:13 PM
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HPOP Oil Leak Help

Well guys, I have an oil leak that I first thought to be coming from the front of my motor in the valley. I had a shop plug in the truck and they said at idle the pump was running at about 40%. I had already changed IPR O rings and tried a new IRP sensor to see if that changed anything. After all that, still no change and still leaking oil.
I have removed my HPOP now and still have no idea where my oil was coming from. No obvioius blown seals.

Couple questions though,
There is a round bearing on the side of the pump where the IPR screws in. Is there a chance that is leaking????

Also, the big snap ring on the back of the pump thats about the size of a can of soup. Is there any chance oil would be leaking from there??? When in inspect it, it appears there is an ever so slight gap there, though I could be wrong.

I would appreciate ANY ideas or help here guys as I am totally stumped as to whats next.
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Old 08-13-2012, 10:09 PM
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Most likely the leak is from one or both feed heads (brass plugs at the 2 o'clock position if it where in the motor and you where at the front of the truck looking at it. Sometimes it leaks from the brass plug on the bottom CAREFUL, if you open that port (remove IPR first!) be ready to catch a ball bearing. Could this be the bearing you mention in your post? This bearing closes a machined hole in the HPOP to keep if from pressurizing down. Ford lists this bearing and the plug as unserviceable BUT International Harvestor sells a HPOP seal kit that replaces this ball bearing and plug at the same time.
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Old 08-14-2012, 06:44 AM
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HPOP Oil Leak Help-img_1819.jpg
this is the bearing i was thinking of.
I could be wrong, but I don't think the brass fittings is where the leak was from. Only reason I say is I did a lot of inspecting previous to pulling **** apart and I could not find a thing.

this was the snap ring I was thinking of that I was wondering if could leak?
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Old 08-14-2012, 09:33 AM
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Not the ball check valve that I was referring to (that looks like a machining plug). The check ball is under the brass plug to the left of your finger in the pic (see all the weeping oil around that plug in your picture?). Pull IPR carefully, pull/magnet out the ball, and inspect the bottom of the well for ware where the check ball would go. IH o-ring kit P# 1842906c92 replaces a lot of those o-rings but not all of them.
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