Leaky water separator valve
Thread Starter
|
Mountain Pass
Joined: Feb 2002
Posts: 111
Likes: 0
From: Fairbanks, Alaska
Leaky water separator valve
Sometime ago, I extended the water separator metal tubing down to just above the front drive axle on the engine mount. I noticed the other day when I retunrned from a trip that the axle was wet from diesel fuel that was being blown onto the axle by the force of the wind when driving. It appears that the valve is permitting fuel to go down the tube in extremely small quantites. There is no drips on the garage floor, but at the end of the tube, there it is moist.
The whole point of my story is to inquire if others had a leaky water separator valve and what was done to repair it. I climbed up into the engine compartment this evening and looked at the back of the fuel filter housing. There is a plastic piece that is held on by four phillip head screws.
I would be very appreciative of any advice before I dive into this project.
Steve
The whole point of my story is to inquire if others had a leaky water separator valve and what was done to repair it. I climbed up into the engine compartment this evening and looked at the back of the fuel filter housing. There is a plastic piece that is held on by four phillip head screws.
I would be very appreciative of any advice before I dive into this project.
Steve
Senior User
Joined: Sep 2004
Posts: 130
Likes: 0
the drain valve is replaceable from ford, about 25.00. you might want to try open and closing the valve a few times just to see if a piece of trash might be preventing a good seal on the vavle before replacing it. you can do this with the engine running, the added pressure will help remove any trash. hope this helps.
Senior User
Joined: Jul 2002
Posts: 299
Likes: 0
From: Ripley NY
I had the same thing happen on my 99 f-350 last week and like fedextech said I just opened it up and let it rip for a second and closed it back up and haven't noticed it dripping any since. If it does it again, I will replace the valve.
Thread Starter
|
Mountain Pass
Joined: Feb 2002
Posts: 111
Likes: 0
From: Fairbanks, Alaska
Update on the leaky water separator valve
I went to my local Ford dealership and obtained a replacement water separator valve to replace my leaky one. (The local International parts dealer couldn't figure out wat I was telling him over the telephone. But when he found out I was talking about a PSD (T444E), he sorta lost interest.)
Anyway...... for about $56, I got the new part. It is rather simple, just two "O" rings that press up against the fuel filter housing when installed. I installed the part and took the truck for a spin. Oh, prior to my departure, I plugged the clear plastic tubing that I used to extend the metal piping coming from the separator. When I got back home from my little test drive, I saw there was about 1/8 to 1/4 inch of diesel fuel in the tube.
Could it be the "O" rings have to plump up on diesel fuel in order to form a good seal against the nylon stem that is inside the separator housing? Is it possible to have too much fuel pressure and the fuel is being forced out the tubing because it has no where else to go? (I thought fuel went back into the fuel tank)
I am going on a trip next week for Thanksgiving and I would sure like to get this fixed so I am not coating my undercarriage in diesel fuel.
Steve
Anyway...... for about $56, I got the new part. It is rather simple, just two "O" rings that press up against the fuel filter housing when installed. I installed the part and took the truck for a spin. Oh, prior to my departure, I plugged the clear plastic tubing that I used to extend the metal piping coming from the separator. When I got back home from my little test drive, I saw there was about 1/8 to 1/4 inch of diesel fuel in the tube.
Could it be the "O" rings have to plump up on diesel fuel in order to form a good seal against the nylon stem that is inside the separator housing? Is it possible to have too much fuel pressure and the fuel is being forced out the tubing because it has no where else to go? (I thought fuel went back into the fuel tank)
I am going on a trip next week for Thanksgiving and I would sure like to get this fixed so I am not coating my undercarriage in diesel fuel.
Steve
Thread
Thread Starter
Forum
Replies
Last Post
ddb
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
2
Sep 27, 2005 03:27 PM
