Fuel Leak
SPONSOR
Joined: May 2010
Posts: 453
Likes: 18
From: Weldona, CO
The water-in-fuel drain valve is normally the first leak that will appear on the 7.3. The drain valve has 3 o-rings that will degrade from the additives in ULSD as the Nitrile o-rings that come stock will not hold up to todays fuel.
We recommend simply pulling the entire fuel canister out and replacing all of the Nitrile o-rings in the unit as there are 8 other Nitrile o-rings in the canister besides the 3 in the drain valve.
You can download a full instruction sheet from our website that will walk you through the entire job and for even a first-timer, it is only a 2 to 3 hour job.
We recommend simply pulling the entire fuel canister out and replacing all of the Nitrile o-rings in the unit as there are 8 other Nitrile o-rings in the canister besides the 3 in the drain valve.
You can download a full instruction sheet from our website that will walk you through the entire job and for even a first-timer, it is only a 2 to 3 hour job.
__________________
Specializing in Viton® o-rings and leak repair kits for the 7.3L and 6.0L diesels
(970) 368-4455 aka guzzleguzzle's Mods & Maintenance website
Specializing in Viton® o-rings and leak repair kits for the 7.3L and 6.0L diesels
(970) 368-4455 aka guzzle
Postmaster
Joined: Jan 2009
Posts: 2,667
Likes: 1
From: Glen Rose,Texas
The water-in-fuel drain valve is normally the first leak that will appear on the 7.3. The drain valve has 3 o-rings that will degrade from the additives in ULSD as the Nitrile o-rings that come stock will not hold up to todays fuel.
We recommend simply pulling the entire fuel canister out and replacing all of the Nitrile o-rings in the unit as there are 8 other Nitrile o-rings in the canister besides the 3 in the drain valve.
You can download a full instruction sheet from our website that will walk you through the entire job and for even a first-timer, it is only a 2 to 3 hour job.
We recommend simply pulling the entire fuel canister out and replacing all of the Nitrile o-rings in the unit as there are 8 other Nitrile o-rings in the canister besides the 3 in the drain valve.
You can download a full instruction sheet from our website that will walk you through the entire job and for even a first-timer, it is only a 2 to 3 hour job.
9 ECHO 1
Joined: Aug 2009
Posts: 12,467
Likes: 58
From: Missouri
Like mentioned above, DieselOrings.com is the place to go to get your repair kit.
Here is a video on doing the repair. It is based off of the Guzzle write up.
How To: Remove and Repair Fuel Bowl - 7.3L Powerstroke - YouTube
Here is a video on doing the repair. It is based off of the Guzzle write up.
How To: Remove and Repair Fuel Bowl - 7.3L Powerstroke - YouTube
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