In tank fuel pump fuse cover leak

[3rdmdqm]

I pulled the in tank fuel pump because it was running but not pumping. The bottom had fallen off. Repaired the bottom, pumps fine now. New problem arose. I took off the cover to the in-tank fuse to check it and found diesel fuel inside the cover. Why would diesel fuel be inside the cover? What would cause enough pressure to force diesel fuel into this cover and make it accumulate so when the cover came off it trickled out? The tank was less than half full. I see there is some type of gasket inside. Gasket had air bubbles and fuel under it when you press on the top of it. Would the fuel sloshing around in the tank migrate up through this gasket and accumulate inside the cover? Is this a simple gasket repair fix?

 

[doghead]

Several times, I have reused the gasket and applied a thin coating of Indian Head Shellac, to reseal the gasket. No leaks yet. It is fuel compatible.

 

[3rdmdqm]

I should add that when we put everything back together from the pump repair everything was dry. Had also replaced the fuse prior to the pump repair and it was dry then also. This occurred after drving it for a bit after the pump repair. Was gonna replace the 2 amp fuse with a 3 amp and when I took the cover off after drining it found the fuel trickling out. Didn't do this before the pump repair.

 

[wsucougarx]

I've got this issue going on with 2 of my deuces. As they sit, the tank will be wet with diesel (not dripping). I isolated the culprit down to the fuse cover as well on both.

 

[maxxplanck]

Same here I just replace about a month ago my in tank pump with all new gaskets and it looks wet with diesel not dripping. what to do ? should i replace my new gaskets again ?

 

[gimpyrobb]

I have a bunch of these parts new if anyone needs some. Pics post 24.

http://www.steelsoldiers.com/deuce/58315-fuel-pump-blowing-fuses-3.html

 

[Heavysteven]

Me too whole cover filled with diesel. Even the fuse had diseil in it.

 

[wsucougarx]

I have a bunch of these parts new if anyone needs some. Pics post 24.

http://www.steelsoldiers.com/deuce/58315-fuel-pump-blowing-fuses-3.html

You have the fuse holder assy gimpy? Ive got a couple housings missing the fuse holders. How much you want for a couple? id pm you but this smart phone is giving me trouble

 

[gimpyrobb]

PM sent, no hurry as I cannot get them out till after next weekend.

 

[Wildchild467]

I just pulled my fuse cover today to see if the fuse connection had any corrosion. The problem i am having is my pump will sometimes not run until i give it one pound with my fist to the top of the fuse cover, then it will start working, but at a low speed. it sure does not sound like it used to when i bought the truck.... spun a lot faster. i dont know if its a bad connection or a tired pump. my fuse cover also had fuel comming out of it when i took the cover off. i had good clothes on and didnt want to dig into it too much before work. i noticed that the pump gets its ground from this cover also. has anybody else had an issue of the fuse conection or related parts causing a pump to act like this? could a slow burn fuse about to go bad do this?

i might try some troubleshooting when i get home. maybe hotwire it directly to the battery with alligator clips to see if that makes it spin any faster, take a pressure test and inspect the wire connections under the fuse cover.

 

[steelandcanvas]

Has anybody else had an issue of the fuse conection or related parts causing a pump to act like this? Could a slow burn fuse about to go bad do this?

Crusty connections will cause intermittent/slow operation of the pump. Slo-Blo fuses will either pass current or they don't, no indication of impending failure.

 

[Wildchild467]

after looking at the pictures of the pump fuse, i can get in there with my meter and measure the voltage. i can also measure the voltage drop between the pump and the battery if the voltage is low. i havent not have much experience with slow blow fuses, so i didnt know what is possible. i wouldnt think it would be the pump motor going bad because it dosnt need much of a hit to get it to work. when i get home, im going to check it out. i might also put a pressure gauge in where that 1/8" pipe plug is... be a good place to check fuel pressure while troubleshooting.