oil leak, from hpop

[journeyman17]

i'm new to the forum but i have read a few others having the same problem, i thought i had a bad rear main seal but just like alot of other guys after looking a little harder it is coming from the hpop area. i will tear into it tomorrow but i just wanted to get some opinions of what usual leaks around that area and if i have to replace the hpop what would be a good upgrade. i certainly don't want to just replace parts without upgrading.. thanks

 

[nswsparky]

had the same problem make sure to check the gadgets and the seals to the plumbing coming out of the HPOP there have been quite a few posts about it laity, like mine. I got screwed by a back yard mechanic I could have gotten away for alot cheaper if he knew what he was doing and I had time to do it for myself. http://www.superdutydiesel.com/forums/99-7-3l-powerstroke-engine-drivetrain/28762-pump-problems.html there are better than stock parts for stock part prices out there.

 

[Friis]

I have the same problem and the stupid ass mechanic that I once used changed the main seal... twice... Didn't help! So he just put a blanket in the V-valley to soak up the oil and make me happy...until some time had passed and the blanket was saturated. What about that!

Anyway, does anyone have some blueprints or something of the hpop and hpop area?

Thanks.

BTW i came across a vid explaining some of the common 7.3 leaks and how hpop leaks can look a lot like a bad main seal.

7.3L LONGEVITY LEAKS 1 OF 2 - YouTube

 

[lifted_up]

HPOP leak

i replaced all the seals in HPOP and Fuel system with kits and instructions from : Replacement O-rings for Ford Diesel Engines and solved half the problem - found the ICP sensor had a crack in it and was leaking also.

 

[journeyman17]

right on thanks to all that replied.. i fixed it last week, tracked the leak to the back of the hpop, i can't even beleive it but it all that oil was coming from a block off plug on the back of pump that the o-ring had failed and the plug was finger tight.. took it out opened my harbor freight o-ring kit, new ring put plug back in and i'm golden

 

[lifted_up]

your harbor freight o-ring will need to be replaced with and o-ring rated for oil/pressure of our trucks.

got to Replacement O-rings for Ford Diesel Engines for the right one!