Fuel Seperator Leaking

HammerDown

Full Access Member
Joined
Jan 12, 2005
Posts
2,081
Reaction score
59
Location
Glenolden Pa
After 34 years it appears the screw-on water separator is weeping fuel from the electrical
You must be registered for see images attach
plug sensor.
Anyone know of quality replacement part still available and from where?
Thanks for any feedback.
 

gandalf

Senior Member
Joined
Jan 21, 2005
Posts
3,721
Reaction score
922
Location
CA
I'd suggest replacing that filter with a one peace filter. You will do away with the potential for leaking. I can't remember the number for the single peace filter, but I'm sure some one will offer it.
 

JPM4

Registered User
Joined
Jul 18, 2021
Posts
2
Reaction score
0
Location
North Alabama
I can't really see what you're talking about in the picture, but years ago, I had same/similar problem. Replaced o-rings, no issues since then. I'm sure there's videos somewhere on the internet. I seem to remember finding the correct size/type o-rings was the hard part.

Does this help:
xc_hide_links_from_guests_guests_error_hide_media

or

xc_hide_links_from_guests_guests_error_hide_media
 
Last edited:

IDIBRONCO

IDIBRONCO
Joined
Feb 5, 2010
Posts
9,010
Reaction score
7,213
Location
edmond, ks
Oh yes. Now I know that you're talking about the sender in the aluminum sediment bowl for the water in fuel light. Yes you can unscrew that and replace the o-ring on there. It takes a 14mm deep socket or wrench. When you tighten that sender back up, don't overtighten it. It's just made of plastic and will break. Yes that's experience talking.
 

HammerDown

Full Access Member
Joined
Jan 12, 2005
Posts
2,081
Reaction score
59
Location
Glenolden Pa
I can't really see what you're talking about in the picture, but years ago, I had same/similar problem. Replaced o-rings, no issues since then. I'm sure there's videos somewhere on the

Oh yes. Now I know that you're talking about the sender in the aluminum sediment bowl for the water in fuel light. Yes you can unscrew that and replace the o-ring on there. It takes a 14mm deep socket or wrench. When you tighten that sender back up, don't overtighten it. It's just made of plastic and will break. Yes that's experience talking.
Yes, I believe that is where the "weeping" is coming from. I wasn't sure 'if' there was an o-ring in there or not.
Question; do you only if there is also an o-ring at the brass water drain valve?
 

HammerDown

Full Access Member
Joined
Jan 12, 2005
Posts
2,081
Reaction score
59
Location
Glenolden Pa
I can't really see what you're talking about in the picture, but years ago, I had same/similar problem. Replaced o-rings, no issues since then. I'm sure there's videos somewhere on the internet. I seem to remember finding the correct size/type o-rings was the hard part.

Does this help:
xc_hide_links_from_guests_guests_error_hide_media

or

xc_hide_links_from_guests_guests_error_hide_media
I'm referring to the lower screw-on water separator under the fuel filter. Not the top fuel heater.
 

IDIBRONCO

IDIBRONCO
Joined
Feb 5, 2010
Posts
9,010
Reaction score
7,213
Location
edmond, ks
I don't know about at the drain. I kept that 7.3 filter head when I swapped the 7.3 into my 1985 Blue Truck. I never did use that style of filter. I switched to the one piece filter because the o-ring that seals the sediment bowl to the filter can, sometimes, be a PITA and leak. I would have to look for that sediment bowl or a different one this weekend to be able to answer that question.
 

HammerDown

Full Access Member
Joined
Jan 12, 2005
Posts
2,081
Reaction score
59
Location
Glenolden Pa
I don't know about at the drain. I kept that 7.3 filter head when I swapped the 7.3 into my 1985 Blue Truck. I never did use that style of filter. I switched to the one piece filter because the o-ring that seals the sediment bowl to the filter can, sometimes, be a PITA and leak. I would have to look for that sediment bowl or a different one this weekend to be able to answer that question.
Since new I've never had an issue with the large sediment O ring.
If u have a manufacturer and part number for the one piece filter I'll take it.
 

IDIBRONCO

IDIBRONCO
Joined
Feb 5, 2010
Posts
9,010
Reaction score
7,213
Location
edmond, ks
I've used a Hastings FF1039-SP. I forget what brand I'm running right now. That one does have the place for the sensor.
 
Top