Replacing Common Rail Fitting

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May 23, 2004 | 06:54 PM

barebackjake

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From: STEPHENVILLE,TX!!!!!

Replacing Common Rail Fitting

Ive got a fitting at on the common rail at the back of the driver side head leaking, how do i bleed the pressure off this thing before cracking it open to replace??? then how do you reprime a pstroke?? or do i not worry bout it and just fire it up and let it do it itself? probably just need to replace the oring inisde it

May 24, 2004 | 06:12 AM

fourstroke

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From: Northern CA

If it's leaking, there is no pressure when the engine is shut off. There is a seal inside the fitting, and depending on what year truck you have, somtimes the turbo pedestal has to be removed to take the fuel line off. After reassembly you will not need to prime the system, just fire it up.

May 24, 2004 | 09:05 AM

barebackjake

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From: STEPHENVILLE,TX!!!!!

thanks fourstroke,

its a 97, im hoping i dont have to pull the turbo it dosnt look like i will have too, its only an intermitten leak only leaks when im not looking and leaks when i dont have time to find it

May 24, 2004 | 07:56 PM

fourstroke

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From: Northern CA

I believe the '97 has an updated line that is removable without pulling the pedestal. The seals are only a couple of buck's at Ford.

Dec 12, 2007 | 11:22 AM

joshsmith7

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The oring on the head side of my fuel line is shot. Do I need to purchase a new line or can i just get an oring?

Dec 12, 2007 | 11:44 AM

miller_feed

Hook it, I'll pull it.

Joined: May 2007

Posts: 15,037

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From: Grand Lake, La.

Josh, this thread was started in 5-2004. Start another thread and ask that question.

Good luck.

Dec 12, 2007 | 02:15 PM

ron's power stroke

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Joined: Jun 2006

Posts: 9,714

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From: White Mnt's,New Hampshire

fuel rail fuel line oring 1/4" part# IH 685158c1 1.88 each

this is for the 1/4 inch steel line going into the head..its under the nut on the line ... i hope thats what you need..thats where mine was leaking..

Last edited by ron's power stoke; Dec 12, 2007 at 02:25 PM.

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Dec 12, 2007 | 05:24 PM

PowerstrokeJunkie

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From: 21791

I dont think you're talking about the fuel rail, are you? Do you mean the large diameter (1.5" or so) plug on the back of the head that takes a 1/2" ratchet head? First check to see if it's loose. I had a oil leak on the front right plug on the 95 which was easily fixed by just tightening it up. I had just reinstalled the engine and the plug somehow was loose, and just vibrated loose enough to leak.