got a leak

JDK · 11-05-2009, 10:29 AM

went out to start my truck this morning and found a small puddle of diesel after it warmed up. it looks like it is coming from the back of the pump? there is a rubber piece that has a very small hose lookin thing coming out of the side. it pops off what i think is the fuel screw but not sure. got any answers?

__________________
1990 d250, 5 speed, 4.10 rear, pump turned up a little. 3200 spring, new paint, stacks to come

Philip · 11-05-2009, 08:05 PM

O-ring on the fuel pin is leaking. The top will most likely have to come off and replace it.

__________________
93 W350 w/duals, fuel pin turned, 6X.018" injectors, 4" exhaust, 3" air intake horn, Super HX40/16, auto, 3:07's axles, 2" skyjacker lift, B&W flatbed

JDK · 11-05-2009, 08:24 PM

what do you mean take the top off? not to sound ignorant about this but i kinda am when it comes to the pump side of things. and would any o-ring from the parts store work?

__________________
1990 d250, 5 speed, 4.10 rear, pump turned up a little. 3200 spring, new paint, stacks to come

Philip · 11-05-2009, 09:33 PM

I dought if a dime store o-ring will work. They don't hold up against diesel fuel to good. Plus that o-ring is small in dia, but it is thicker than a normal o-ring. Even a metric o-ring.

You would need a Ve reseal kit to acquire the correct o-ring.

__________________
93 W350 w/duals, fuel pin turned, 6X.018" injectors, 4" exhaust, 3" air intake horn, Super HX40/16, auto, 3:07's axles, 2" skyjacker lift, B&W flatbed

90powerram · 11-06-2009, 03:31 AM

This is exactly what happened to mine yesterday - started it up after work, and there was a steady dripping from the shut-off solenoid area, about 3 drips every 2 seconds.
Sorry to hijack the thread, but is resealing the VE a job someone can do easily? I'm in BC, are there any places that sell kits? Thanks.

__________________
1990 W250 4WD 5-speed, factory 1-ton suspension
Mostly stock for now, pyro, 3.54's & Toyo M/T's

1stgen3rdgendodge · 11-06-2009, 05:40 AM

I am getting ready to tackel my leaky fuel pin seal. shouldnt be too bad and since u are going to have the top off you mine as well spend $20 and drop a govenor spring in too.

__________________
93 W250 4x4 125k auto hx40 recon smoked cab lights lots of body work injectors coming soon

01 2500 4x4 auto 2" leveling kit tail lights silencer ring MIA Edge Juice with Attitude custom 4" into dual 6" stacks AEM gauges

JDK · 11-06-2009, 10:13 AM

do i have to take the whole pump off to get the top off? and where can i get the kit? i saw some on ebay but i figured theres a better place to buy them.

__________________
1990 d250, 5 speed, 4.10 rear, pump turned up a little. 3200 spring, new paint, stacks to come

1stgen3rdgendodge · 11-06-2009, 07:42 PM

well i was just gonna order my kit off ebay. no u dont have to pull the whole pump off to get to it. there are 4 allen head screws i believe you have to take out along with the TPS if urs is a newer auto and the banjo bolt and then u should be able to pull the top half of the pump off to get to the seal. the seal will be on the bottom half of the top part u pull off and then if you look inside the pump u will see the govenor spring. i havent had the top off mine yet but i will here in the near future.

__________________
93 W250 4x4 125k auto hx40 recon smoked cab lights lots of body work injectors coming soon

01 2500 4x4 auto 2" leveling kit tail lights silencer ring MIA Edge Juice with Attitude custom 4" into dual 6" stacks AEM gauges

Last edited by 1stgen3rdgendodge : 11-06-2009 at 07:48 PM.

JDK · 11-07-2009, 10:26 AM

well i went ahead and ordered my kit of ebay. do you know what that black rubber piece on the back of the pump is for?

__________________
1990 d250, 5 speed, 4.10 rear, pump turned up a little. 3200 spring, new paint, stacks to come

Evel486 · 11-07-2009, 01:52 PM

The black rubber piece is a cover for the AFC vent. When the AFC diaphragm moves it displaces air so the cover must be vented. Get yourself some very detailed instructions cause this is not a simple little job if you have never done it before.
90powerram- what part of BC? I'm in PG- maybe I can help.

JDK · 11-07-2009, 08:27 PM

well the diesel is comind out of that rubber piece so im guessing that it covers the fuel pin?

and thank you guys for all the help!

__________________
1990 d250, 5 speed, 4.10 rear, pump turned up a little. 3200 spring, new paint, stacks to come

1stgen3rdgendodge · 11-07-2009, 08:43 PM

if its coming from underneath the diaphragm then you will need to replace the fuel pin seal cause there shouldnt be diesel laying underneath there

__________________
93 W250 4x4 125k auto hx40 recon smoked cab lights lots of body work injectors coming soon

01 2500 4x4 auto 2" leveling kit tail lights silencer ring MIA Edge Juice with Attitude custom 4" into dual 6" stacks AEM gauges

11-05-2009, 10:29 AM	#1 (permalink)
JDK Newbie Join Date: Sep 2009 Posts: 28 Thanks: 2 Thanked 0 Times in 0 Posts JDK's Truck Pics	got a leak went out to start my truck this morning and found a small puddle of diesel after it warmed up. it looks like it is coming from the back of the pump? there is a rubber piece that has a very small hose lookin thing coming out of the side. it pops off what i think is the fuel screw but not sure. got any answers? __________________ 1990 d250, 5 speed, 4.10 rear, pump turned up a little. 3200 spring, new paint, stacks to come

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11-05-2009, 08:05 PM	#2 (permalink)
Philip 1ST GEN MODERATOR Join Date: Nov 2007 Location: Indiana Posts: 5,115 Thanks: 2 Thanked 131 Times in 121 Posts Philip's Truck Pics	O-ring on the fuel pin is leaking. The top will most likely have to come off and replace it. __________________ 93 W350 w/duals, fuel pin turned, 6X.018" injectors, 4" exhaust, 3" air intake horn, Super HX40/16, auto, 3:07's axles, 2" skyjacker lift, B&W flatbed

11-05-2009, 08:24 PM	#3 (permalink)
JDK Newbie Join Date: Sep 2009 Posts: 28 Thanks: 2 Thanked 0 Times in 0 Posts JDK's Truck Pics	what do you mean take the top off? not to sound ignorant about this but i kinda am when it comes to the pump side of things. and would any o-ring from the parts store work? __________________ 1990 d250, 5 speed, 4.10 rear, pump turned up a little. 3200 spring, new paint, stacks to come

11-05-2009, 09:33 PM	#4 (permalink)
Philip 1ST GEN MODERATOR Join Date: Nov 2007 Location: Indiana Posts: 5,115 Thanks: 2 Thanked 131 Times in 121 Posts Philip's Truck Pics	I dought if a dime store o-ring will work. They don't hold up against diesel fuel to good. Plus that o-ring is small in dia, but it is thicker than a normal o-ring. Even a metric o-ring. You would need a Ve reseal kit to acquire the correct o-ring. __________________ 93 W350 w/duals, fuel pin turned, 6X.018" injectors, 4" exhaust, 3" air intake horn, Super HX40/16, auto, 3:07's axles, 2" skyjacker lift, B&W flatbed

11-06-2009, 03:31 AM	#5 (permalink)
90powerram Cummins Fan Join Date: Apr 2009 Location: BC Posts: 31 Thanks: 0 Thanked 0 Times in 0 Posts 90powerram's Truck Pics	This is exactly what happened to mine yesterday - started it up after work, and there was a steady dripping from the shut-off solenoid area, about 3 drips every 2 seconds. Sorry to hijack the thread, but is resealing the VE a job someone can do easily? I'm in BC, are there any places that sell kits? Thanks. __________________ 1990 W250 4WD 5-speed, factory 1-ton suspension Mostly stock for now, pyro, 3.54's & Toyo M/T's

11-06-2009, 05:40 AM	#6 (permalink)
1stgen3rdgendodge Cummins Nut Join Date: Jun 2009 Location: Mount Union, PA Posts: 324 Thanks: 5 Thanked 5 Times in 5 Posts 1stgen3rdgendodge's Truck Pics	I am getting ready to tackel my leaky fuel pin seal. shouldnt be too bad and since u are going to have the top off you mine as well spend $20 and drop a govenor spring in too. __________________ 93 W250 4x4 125k auto hx40 recon smoked cab lights lots of body work injectors coming soon 01 2500 4x4 auto 2" leveling kit tail lights silencer ring MIA Edge Juice with Attitude custom 4" into dual 6" stacks AEM gauges

11-06-2009, 10:13 AM	#7 (permalink)
JDK Newbie Join Date: Sep 2009 Posts: 28 Thanks: 2 Thanked 0 Times in 0 Posts JDK's Truck Pics	do i have to take the whole pump off to get the top off? and where can i get the kit? i saw some on ebay but i figured theres a better place to buy them. __________________ 1990 d250, 5 speed, 4.10 rear, pump turned up a little. 3200 spring, new paint, stacks to come

11-06-2009, 07:42 PM	#8 (permalink)
1stgen3rdgendodge Cummins Nut Join Date: Jun 2009 Location: Mount Union, PA Posts: 324 Thanks: 5 Thanked 5 Times in 5 Posts 1stgen3rdgendodge's Truck Pics	well i was just gonna order my kit off ebay. no u dont have to pull the whole pump off to get to it. there are 4 allen head screws i believe you have to take out along with the TPS if urs is a newer auto and the banjo bolt and then u should be able to pull the top half of the pump off to get to the seal. the seal will be on the bottom half of the top part u pull off and then if you look inside the pump u will see the govenor spring. i havent had the top off mine yet but i will here in the near future. __________________ 93 W250 4x4 125k auto hx40 recon smoked cab lights lots of body work injectors coming soon 01 2500 4x4 auto 2" leveling kit tail lights silencer ring MIA Edge Juice with Attitude custom 4" into dual 6" stacks AEM gauges Last edited by 1stgen3rdgendodge : 11-06-2009 at 07:48 PM.

11-07-2009, 10:26 AM	#9 (permalink)
JDK Newbie Join Date: Sep 2009 Posts: 28 Thanks: 2 Thanked 0 Times in 0 Posts JDK's Truck Pics	well i went ahead and ordered my kit of ebay. do you know what that black rubber piece on the back of the pump is for? __________________ 1990 d250, 5 speed, 4.10 rear, pump turned up a little. 3200 spring, new paint, stacks to come

11-07-2009, 01:52 PM	#10 (permalink)
Evel486 Cummins Fan Join Date: Jul 2009 Posts: 70 Thanks: 0 Thanked 3 Times in 3 Posts Evel486's Truck Pics	The black rubber piece is a cover for the AFC vent. When the AFC diaphragm moves it displaces air so the cover must be vented. Get yourself some very detailed instructions cause this is not a simple little job if you have never done it before. 90powerram- what part of BC? I'm in PG- maybe I can help.

11-07-2009, 08:27 PM	#11 (permalink)
JDK Newbie Join Date: Sep 2009 Posts: 28 Thanks: 2 Thanked 0 Times in 0 Posts JDK's Truck Pics	well the diesel is comind out of that rubber piece so im guessing that it covers the fuel pin? and thank you guys for all the help! __________________ 1990 d250, 5 speed, 4.10 rear, pump turned up a little. 3200 spring, new paint, stacks to come

11-07-2009, 08:43 PM	#12 (permalink)
1stgen3rdgendodge Cummins Nut Join Date: Jun 2009 Location: Mount Union, PA Posts: 324 Thanks: 5 Thanked 5 Times in 5 Posts 1stgen3rdgendodge's Truck Pics	if its coming from underneath the diaphragm then you will need to replace the fuel pin seal cause there shouldnt be diesel laying underneath there __________________ 93 W250 4x4 125k auto hx40 recon smoked cab lights lots of body work injectors coming soon 01 2500 4x4 auto 2" leveling kit tail lights silencer ring MIA Edge Juice with Attitude custom 4" into dual 6" stacks AEM gauges