fuel leak question
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Senior User
Joined: Oct 2009
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fuel leak question
hey guys once again another question. i have fuel coming from underneath
the fuel pump. i cant find any other leaks. i replaced all the fuel lines and
clamps. i cleaned the screen and strainer. what size bolt is it on the fuel
pump back side under turbo. also how do you get in there to tighten it.
thanx for any and all help
steve n.carolina f250 powerstrokeSign In
the fuel pump. i cant find any other leaks. i replaced all the fuel lines and
clamps. i cleaned the screen and strainer. what size bolt is it on the fuel
pump back side under turbo. also how do you get in there to tighten it.
thanx for any and all help
steve n.carolina f250 powerstrokeSign In
Laughing Gas
Joined: Oct 2009
Posts: 882
Likes: 11
From: Eastern CT
Sounds like the weep hole on your fuel pump. The banjo bolt on the back of the pump is 1 1/4". Is your truck a cali model or a 49 stater? If it is a cali model you have to go under the turbo, but if it's a 49 stater you can get it with a wrench. I think a craftsman wrench has about the right angle but you can always heat and bend a wrench if you have to. Hope this helps.
Red
Red
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Senior User
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my truck is 49 stater im in north carolina. where is the weep hole on the pump.
i cant see any fuel leaking. it seems to be coming from area of the 11/4 nut.
the fuel builds up slowly. so to tighten the bolt wont help. so i need to replace
the pump? thanks alot steve n.carolina f250 ps
i cant see any fuel leaking. it seems to be coming from area of the 11/4 nut.
the fuel builds up slowly. so to tighten the bolt wont help. so i need to replace
the pump? thanks alot steve n.carolina f250 ps
Laughing Gas
Joined: Oct 2009
Posts: 882
Likes: 11
From: Eastern CT
You can try to tighten the banjo bolt, it may help. The weep hole is right on the bottom of the pump, I don't think that you can see it unless you take it off the truck, but you may be able to use a mirror to see it. I don't remember if it is on the front or rear side of the pump though, someone else might be able to help with that. I can try to look tomorrow to see where the weep hole is. How many miles do you have on your truck? Do you know what your fuel pressure is?
Red
Red
Laughing Gas
Joined: Oct 2009
Posts: 882
Likes: 11
From: Eastern CT
You may be getting to the point to need a new pump. My 350 has 156k and I changed it, not because it leaked, but because I was replacing the rubber lines and figured I should do the fuel pump while I was at it. Just beware of the lifter when you take the pump out, you don't want it falling into the engine.
Red
Red
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what can i do to prevent it from falling into motor . all tips will help.
thanx alot f250 ps 146000 f350 ps 276000
thanx alot f250 ps 146000 f350 ps 276000
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Postmaster
Joined: Jan 2004
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From: Kearney, Nebr
You need to turn the engine over by hand so the tappet hits the eccentric on the cam. Thus, it raises the tappet so you can pull it out.
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Senior User
Joined: May 2005
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From: Southwest Ohio
You may have already tackled this, but here are some pictures. Happened to have one on the shelf at work. Might help someone in the future.
I just went through this yesterday, mine was leaking around the nut. I snugged it up a 1/4 turn and its not leaking now. A small inspection mirror works great in there.
I just went through this yesterday, mine was leaking around the nut. I snugged it up a 1/4 turn and its not leaking now. A small inspection mirror works great in there.
Laughing Gas
Joined: Oct 2009
Posts: 882
Likes: 11
From: Eastern CT
If you take off the 2 bolts that hold the pump down, the pump should lift up when the lobe comes up. Just take your time and be careful, you don't want to lose the lifter in the engine. Good luck.
Red
Red
Elder User
Joined: Aug 2009
Posts: 869
Likes: 1
From: Michigan
and check fit the banjo bolt in the new pump before you install it. sometimes those "new" pumps have dinged threads which gall against the steel threads of the banjo bolt so that while youre already cussing about the tight working conditions under the turbo, this will surely will make you throw a 1-1/4" wrench across the garage. 
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