HPO Leak Found? Pics

DHFF · Aug 30, 2013

So I've had the truck back after a complete rebuild (some of you know this...sigh) and it ran for 3 weeks before it developed an HPO leak and wouldn't start when the oil temp was over 180 degrees. It started fine when it was cold and ran great, until I shut it down. Usually could wait 2 hours and it would fire right back up.

Anyway after reading I figured I had some bad oil rail seals or top injector seals. What do you guys think?????

DHFF · Aug 30, 2013

Top injector seal

DHFF · Aug 30, 2013

Clip and seal removed. Kind of a pain in the ass!!!!

20007.3L · Aug 30, 2013

looks like the seals chit the bed!

DHFF · Aug 30, 2013

I REALLY hope thats where my leak was. The only thing not replaced were the oil rails and some of the injectors because were all working good.

Also, are you supposed to be able to wiggle the nipple cups on the oil rail? They seem to move pretty freely. I bought new o rings and the socket to remove them but wondered if that could be an issue as well????

Irontx · Aug 30, 2013

DHFF said:
I REALLY hope thats where my leak was. The only thing not replaced were the oil rails and some of the injectors because were all working good.

Also, are you supposed to be able to wiggle the nipple cups on the oil rail? They seem to move pretty freely. I bought new o rings and the socket to remove them but wondered if that could be an issue as well????

Yeah.... They swivel around a little....

DHFF · Aug 30, 2013

Irontx said:
Yeah.... They swivel around a little....

Damnit I was hoping they didnt. I might still replace them.

Mdub707 · Aug 30, 2013

That injector o-ring looks like it was pinched or something... I bet that's it man.

DHFF · Aug 30, 2013

Mdub707 said:
That injector o-ring looks like it was pinched or something... I bet that's it man.

Actually Mike it looks like its been burned? Like its friction eroded almost. 4 of the injectors are near new so after I replace the seals in the other 4 we'll see. Also gonna make sure the oldest injectors are in the front so they are easier to get out if one takes a chit.

I REALLY hope this solves my issue. Goddamn this truck is lucifer.

Bustedknuckles · Aug 30, 2013

I've diagnosed a few trucks with no starts caused by those seals being blown. Our local diesel injection pump shop can replace just the seals which saves a bunch of money.

DHFF · Aug 30, 2013

Bustedknuckles said:
I've diagnosed a few trucks with no starts caused by those seals being blown. Our local diesel injection pump shop can replace just the seals which saves a bunch of money.

Do they pull the clip and spacer or were they able to pick the old seal and roll the new one in with lube? I got one of the clips out but the rest have proven to be smarter than me.

Bustedknuckles · Aug 30, 2013

DHFF said:
Do they pull the clip and spacer or were they able to pick the old seal and roll the new one in with lube? I got one of the clips out but the rest have proven to be smarter than me.

They roll the new one in without messing with the clip. The old guy there said the procedure calls for pulling the clips but its impossible.

DEEZUZ · Aug 30, 2013

You don't pull the clips, you use a sharp punch and hit them 180 from the opening.. It breaks the circuit, but it comes new in the kit for a reason.. But of course you can just change the d ring with removing clip..

Very common to see these fail. Especially if their a certain brand I won't mention.

Mdub707 · Sep 3, 2013

CTC DEEZUL said:
You don't pull the clips, you use a sharp punch and hit them 180 from the opening.. It breaks the circuit, but it comes new in the kit for a reason.. But of course you can just change the d ring with removing clip..

Very common to see these fail. Especially if their a certain brand I won't mention.

I'd prefer if you did mention it.... LOL

As I'm sure other guys would too.