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Old 02-02-2016, 09:40 AM   #1
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HPOP leak on my 7.3... what else should I do while I'm in there?

I recently sprung a fairly substantial leak and I've tracked it down to the HPOP... I didn't get a good enough look to determine exactly what part on it is leaking, but I purchased the complete O-ring set from dieselorings.com and the HPOP gasket and a handful of other goodies. I plan to replace as many O-rings and seals as possible while I'm in there, but is there anything else I should look at doing at the same time?

I also purchased the threaded adapter so that I can add a fuel pressure gauge off the fuel bowl and I will do all the o-rings on the fuel bowl then too.

But are there any worthwhile mods to do at the same time? I already have the international up-pipe kit.

Thanks!

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Old 02-02-2016, 10:44 AM   #2
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apparently there is a fitting on the bottom of the turbo that is prone to leak as well. i had all the others replaced a few months ago hoping it would cease my constant puddle. negative. now im getting a bellows kit installed and that o-ring under the turbo replaced soon. my icp sensor was also leaking, but not sure it was much of the cause for my leaks.
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Old 02-05-2016, 04:55 AM   #3
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I to dread the day I will have to do this...

I would look in a fuel pressure regulator which not only gives you adjustment but also distributes equal fuel pressure to the heads w/o dead heading the pressure to the #8 cylinder. I have an oil drip that is probably coming from the turbo (i hope) so i plan on fixing those o-rings and intake boots as well. here is the link --> 7.3L Diesel Fuel Rail Crossoverâ„¢ (FRx) 99-03 Powerstroke

Good luck!
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Old 02-05-2016, 01:16 PM   #4
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I made another order today... my todo list looks like this:

-Replace as many O-rings as possible (HPOP and Fuel Bowl) using dieselorings.com combo pack
-Clean out fuel bowl
-Clean EBPV sensor and tube
-Install adapter and Schrader test valve onto fuel bowl
-Install HPX line
-Install Riffraff FRx line
-AIH delete
-Riffraff High Flow CVD fitting set
-Install RPD Plenum Reinforcements and T-Clamps
-Put it all back together and hope I fixed the oil leak that started this whole rabbit trail of upgrades... Hahaha
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