The Diesel Stop banner

Fix your fuel leak from filter drain valve

113K views 66 replies 52 participants last post by  Catch-All 
#1 · (Edited)
I imagine that you guys down here in the basement are having troubles with fuel leaks like the superduty crowd is. I just posted some photos that may help out with this.

Here's some pix of a 94-97 van filter drain valve.

Auto part


Auto part Hardware accessory


Gun


Personal protective equipment


Personal protective equipment


Or you can go to my album that has more pix (hit the max of 5 inserted in a post) and some notes about disassembling the valve.

94-97 Fuel Drain Valve - TheDieselStop.Com Photo Hosting
 
See less See more
5
#3 ·
No, in fact, you can't even buy the o-rings separate from Ford AFAIK. They just sell the whole valve.

Any place that sells o-rings can fix you up. Viton is the preferred material, but Buna-N has been working for me for quite a while (over 1-1/2 yrs). For Viton o-rings, try www.mcmaster.com or www.oringsusa.com
 
#65 ·
No, in fact, you can't even buy the o-rings separate from Ford AFAIK. They just sell the whole valve.

Any place that sells o-rings can fix you up. Viton is the preferred material, but Buna-N has been working for me for quite a while (over 1-1/2 yrs). For Viton o-rings, try www.mcmaster.com or www.oringsusa.com
Yes,viton material is excellent,for some application Buna-N is enough.
www.emrubber.com
 
#4 ·
[ QUOTE ]
No, in fact, you can't even buy the o-rings separate from Ford AFAIK. They just sell the whole valve.

Any place that sells o-rings can fix you up. Viton is the preferred material, but Buna-N has been working for me for quite a while (over 1-1/2 yrs). For Viton o-rings, try www.mcmaster.com or www.oringsusa.com

[/ QUOTE ]Once I looked at the pics I saw instantly why the o rings are not sold separately. The rings serve as ball valve seats....so they are considered a part of the valve itself...Yeah, they also seal the valve body to the filter, but....

Now you see why it's is best to use viton...as they are seats, then they experience wear whenever you operate the valve, unlike a static seal.
 
#5 ·
what size are the O-rings? id like to have them on hand before i tear into it. thanks, -marty
 
#6 ·
O-ring size is -202
1/2" OD x 1/4" ID x 1/8" thickness (nominal dimensions)
 
#7 ·
thanks
 
#8 ·
If you decide to replace the o-ring on the top of the valve stem at the same time, it is a -013 o-ring...
Just my .01
Tom
 
#9 ·
ok i know where the 2 torx tip screws are and i have my o-rings in hand. my question is do i have to remove my filter bowl or can i somehow get to the 2 screws for removing and installing. it looks tight because it is at the bottom of the bowl. thanks
 
#10 ·
[ QUOTE ]
ok i know where the 2 torx tip screws are and i have my o-rings in hand. my question is do i have to remove my filter bowl or can i somehow get to the 2 screws for removing and installing. it looks tight because it is at the bottom of the bowl. thanks

[/ QUOTE ]

Sorry I can't tell you, as I've never done the job on an OBS truck, just borrowed the filter bowl from a buddy to take the pix.

There's one sure way to find out, and that's dig in and try it.

Post what you find out here, so other folks will know.
 
#11 ·
If you got super small extra long fingers and they can bend in several areas at once then you might be able to but if not,take the rubber line lose on back of filter can to pump,take lose the line on the right side of the filter can,look in back of filter at very bottom youll see two metric bolts holding it down,take out,now youll be able to move filter can around some,not much but enough to get a t15 torx socket on,break lose then use fingers to turn socket till out a bit,then use just fingers to completly remove little torx screws,the handle comes off with it once its lowered alittle,,the newer valves have 4 torx screws and want work on older 94s,take your time,if you drop anything youll need a small magnet to fish it out.
 
#12 ·
My 95 Ps 7.3 is leaking bad!! It began stalling now and then. Then I noticed stains on the driveway, thought tranny was leaking, it was diesel fuel. Its deep enuff in the block valley to splash with you fingers.... A mech has removed all but the filer housing and can't find the leak yet... what do you think, could this post be about what is wrong ???
 
#51 ·
My 95 Ps 7.3 is leaking bad!! It began stalling now and then. Then I noticed stains on the driveway, thought tranny was leaking, it was diesel fuel. Its deep enuff in the block valley to splash with you fingers.... A mech has removed all but the filer housing and can't find the leak yet... what do you think, could this post be about what is wrong ???

yess i have the same problem if you figure it out please let me know i just replaced all the hose lines. and it seems it only leaks when it wants to
 
#14 ·
I once had a leak so bad in my 97' that it took the whole rear tank and half of the front to run 10 miles! When I took it apart, the fuel housing must have been a bad casting..... there was a dime sized hole in the bottom of it! Took it to a welder and had him tig the hole shut since a new housing was over $300. So far so good.
 
#16 ·
I just replaced mine on my 96 but I think my filter housing might be leaking too (cracked?). BTW you can get the screws out with the filter in place. I got this little racheting deal from Harbor Frieght. You squeez the handle and it turns the bit comes in a box with all the bits. Mine was philips but the kit has torx bits also. Was real easy with that tool ($14).
 
#17 ·
McMaster-Carr tends to sell o-rings in packs of 25 or 100. There has been a vendor on ebay selling them in individual service packs for the PSD drain valves. Or just buy them and share them with 24 of your friends as they are fairly cheap (viton ones) from McMaster-Carr.
 
#19 ·
Mines leaking again go figure... Damn pile of junk Ford... Anybody have a place that sells these o-rings? These guys around here are complete idiots and don't know what a part is unless their little computer tells them what it is.. I will pay postage if somebody can get me the correct o-rings to do the whole housing...Thanks!
 
#21 ·
Here's some part # info from This website

Fuel Filter Housing Reseal Kit
(International) 1823645C91 (94-95) (Part # inside Ford packaging, bad per IH)
(Ford) F6TZ-9157-BA (96-97)
(Ford) F5TZ-9157-A (94-95)
Includes:
(Ford) F4TZ-9C064-A O-Ring Water in Fuel Probe
(Ford) F4TZ-9C065-A O-Ring Heater Connector
Not Available (International) 1823565-C1 O-Ring Water Drain Valve
Not Available (International) 1823635-C1 O-Ring Orifice Vent
Not Available (International) 1823644-C1 O-Ring Pressure Regulator Filter
Not Available (International) 1823655-C1 Ball, FPR Check Valve
Not Available (International) 1823662-C1 Gasket, Element
Not Available (International) 1824476-C1 O-Ring, Prescreen Bowl
 
#22 ·
#23 ·
I answered my own ? w/ a little more research. And found a kit that had the little oring in it. The obs needs the little one, and the sd's don't.
 
#26 ·
I have a 95 f350 leaking from the water in fuel probe, or the heater connector. What ever the one with the single red wire going in is. Does anyone know what the O-ring size is for that fitting? Ford wants $46.00 for a reseal kit for the fuel bowl. I bought 20 ea. viton #202 and #013 at a local seal wearhouse for $5.00, & would like to purchase the rest of the seals from the same place. I just need sizes.

Thanks
 
You have insufficient privileges to reply here.
Top