fuel leak at front of injection pump

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fuel leak at front of injection pump

Postby kpshc707 » Sun May 15, 2011 12:52 pm

so my 1990 d250 has started a pretty good fuel leak. it looks like its coming out of that weird fitting facing to the front of the engine under the hard line that come from the ksb. looks like i might have to take the pump off :shock: any ideas?
1990 D250 gauges, 3800 spring, #60 valve springs, pump tweaks, 4" turbo back, BHAF
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Re: fuel leak at front of injection pump

Postby wilkyflex » Wed Jun 15, 2011 12:55 am

mine leaked and I had to buy a new pump. I removed the old one and installed the new one myself. wow...what a learning experience for a guy who has never done it before. Quite a job.
Dean
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Re: fuel leak at front of injection pump

Postby collegekid » Wed Jun 15, 2011 7:56 am

If its leaking out of that little bitty line that goes into the KSB, its the bolt with the two flat sides. There are four o-rings on it, I just fixed mine. Take a socket that fits on the washer around the odd shaped bolt head, and hit it a couple times to loosen it up, then take a 10mm open end wrench and loosen it up and pull it out (its kinda reluctant about coming out) then use a pick to take the o-rings off, there are three larger o-rings, and one smaller. That should fix that problem, if thats where its leaking
1992 D350 CC LB 5-spd CTD, 366 GSK, Rotated Fuel Pin, Fuel Screw 1 turn off runaway, Factory Match Pyro and Boost, 4" Diamond eye exhaust, and a broken front sway bar :-)
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Re: fuel leak at front of injection pump

Postby kpshc707 » Tue Jul 26, 2011 12:06 am

its leaking from the little bolt plug thing that the ksb hard line runs on top off ill get some pictures up
1990 D250 gauges, 3800 spring, #60 valve springs, pump tweaks, 4" turbo back, BHAF
kpshc707
fuel pin?
 
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Re: fuel leak at front of injection pump

Postby collegekid » Tue Jul 26, 2011 7:21 am

Be careful taking that bolt off, the heads will sometimes snap off, take your socket and hit a a couple times to loosen stuff up
1992 D350 CC LB 5-spd CTD, 366 GSK, Rotated Fuel Pin, Fuel Screw 1 turn off runaway, Factory Match Pyro and Boost, 4" Diamond eye exhaust, and a broken front sway bar :-)
http://photobucket.com/truckytruck
collegekid
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Re: fuel leak at front of injection pump

Postby kpshc707 » Tue Jul 26, 2011 11:46 am

that's where its leaking for sure but it looks impossible to get out without taking the whole pump off :|
1990 D250 gauges, 3800 spring, #60 valve springs, pump tweaks, 4" turbo back, BHAF
kpshc707
fuel pin?
 
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Joined: Tue Oct 26, 2010 9:44 pm
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Re: fuel leak at front of injection pump

Postby collegekid » Tue Jul 26, 2011 12:00 pm

nah, take the supply line off, it runs from the filter to the front of the pump, once its off, the bolt is right there on top.....be sure to use a backing wrench so you dont twist the fuel line...I learned the hard way
1992 D350 CC LB 5-spd CTD, 366 GSK, Rotated Fuel Pin, Fuel Screw 1 turn off runaway, Factory Match Pyro and Boost, 4" Diamond eye exhaust, and a broken front sway bar :-)
http://photobucket.com/truckytruck
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Re: fuel leak at front of injection pump

Postby kpshc707 » Tue Jul 26, 2011 1:53 pm

its leaking from the little brass plug thing a pic might help

Image
1990 D250 gauges, 3800 spring, #60 valve springs, pump tweaks, 4" turbo back, BHAF
kpshc707
fuel pin?
 
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Re: fuel leak at front of injection pump

Postby PToombs » Tue Jul 26, 2011 5:52 pm

Yup, you're pulling the pump!
pete

Just enough power to break everything behind the crankshaft.
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Re: fuel leak at front of injection pump

Postby kpshc707 » Tue Jul 26, 2011 6:16 pm

lame lol anyone got a link for a how to? thanks you guys rock
1990 D250 gauges, 3800 spring, #60 valve springs, pump tweaks, 4" turbo back, BHAF
kpshc707
fuel pin?
 
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Re: fuel leak at front of injection pump

Postby slingshot » Tue Jul 26, 2011 6:19 pm

search governor shaft o ring
1993 W250 5speed.
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Re: fuel leak at front of injection pump

Postby JustinRhodes » Tue Jul 26, 2011 7:37 pm

kpshc707 wrote:lame lol anyone got a link for a how to? thanks you guys rock


i dont know of any but heres 2 tips, dont drop the washer and keyway in the timing case cover and dont forget to put the gasket that goes between timing case and pump. both of which i have did :lol:
91 Dodge W250 Pee Pumped Cummings
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Re: fuel leak at front of injection pump

Postby collegekid » Wed Jul 27, 2011 9:46 am

youtube it, there is a video with step by step instructions, I think its actually an old dodge technician training video. It says to use a barring tool to turn the motor over to get it to TDC, but you can use the alternator pulley, if you put it on TDC.

I was thinking you were leaking from the bolt that is right there on top, my bad :oops:
1992 D350 CC LB 5-spd CTD, 366 GSK, Rotated Fuel Pin, Fuel Screw 1 turn off runaway, Factory Match Pyro and Boost, 4" Diamond eye exhaust, and a broken front sway bar :-)
http://photobucket.com/truckytruck
collegekid
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Re: fuel leak at front of injection pump

Postby PToombs » Wed Jul 27, 2011 5:24 pm

kpshc707 wrote:lame lol


Whatta ya mean lame? :shock: You just asked if you had to pull the pump, if you asked for a how to the 1st time you'd have gotten it! ;)
pete

Just enough power to break everything behind the crankshaft.
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Re: fuel leak at front of injection pump

Postby JustinRhodes » Wed Jul 27, 2011 9:14 pm

PToombs wrote:
kpshc707 wrote:lame lol


Whatta ya mean lame? :shock: You just asked if you had to pull the pump, if you asked for a how to the 1st time you'd have gotten it! ;)


i wouldnt want the hear that i had to pull the pump either :lol:
91 Dodge W250 Pee Pumped Cummings
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