HPOP Fitting Leaking
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Tuned
Joined: Dec 2004
Posts: 287
Likes: 3
From: Gunnison, Co.
HPOP Fitting Leaking
While going over the truck after a hard winter and replacing the seals in the Oil Cooler I discovered another oil leak. The valley in the engine has oil in it. It appears that there has been a small leak coming from the HPOP. There are two fittings on the top rear drivers side of the HPOP the one toward the front of the vehicle appears to be the location of the leak. I tightened the fitting as it seemed a little loose and looks like a compression fitting but that may have made the leak worse. I am guessing those are high pressure lines to the injectors? Are there o-rings in those fittings or the compression fitting that screws into the HPOP that can be replaced? If so what are the parts I need to locate to get the leak stopped? I didn't want to pull it apart to find out and not have a replacement part as I have to drive the truck to Grand Junction tomorrow to look at a piece of machinery and can't have the truck down. Any help would be appreciated. Thanks.
Hotshot
Joined: Mar 2012
Posts: 10,590
Likes: 382
From: Texas
I just did this repair literally yesterday. You'll need and HPOP ORing kit from Diesel Orings or RiffRaff Diesel. Those two fittings take Orings and green Loctite to seal them. It all comes in the kit for about $12.
Also, look underneath where the pump is bolted to the block and see if you can see oil coming from underneath. That may be the gasket, but highly doubtful.
Also, look underneath where the pump is bolted to the block and see if you can see oil coming from underneath. That may be the gasket, but highly doubtful.
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