What about internal HPOP o-rings? - Diesel Forum - TheDieselStop.com
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Go Back   Diesel Forum - TheDieselStop.com > 1999-2007 Ford Super Duties > 99 & up 7.3L Power Stroke Engine and Drivetrain

99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

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Old 12-28-2007, 08:06 AM   #1 (permalink)
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What about internal HPOP o-rings?

I've been chasing an oil seep at the HPOP fittings for a while. Ford replaced the fitting-to-housing o-rings twice. After that didn't work I decided to try it myself. Still a small seep. I then discovered the fitting-to-hose o-ring on the inside of the fitting along with a small plastic "cup". I believe this is where the seep is.

Anyone have a part's diagram on this so I can be sure how the "cup" is oriented? Anyone ever replace these o-rings?
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