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View Full Version : Fuel Leaking from behind vp44

Junior
03-18-2007, 02:11 PM
:wtf2:
Guys i know you have vp44 on and off. It seems i have fuel leaking behind my vp44. Looks like it is dripping down the block and ideas on what i should look for? Loose bolts? hose?

Hard to see where it is coming from. Should go in and clean it up a little might help out. Block and undercarriage is covered in fuel so must have started on the past 2 NY trips within the last month.
TORQUE THIS
03-18-2007, 02:25 PM
Is it still the stock pump?

Does it leak when you bump the starter?

If not, can you see it leak when running?
Junior
03-18-2007, 07:05 PM
alright i looked into it a little more cleaned up the area and started the truck. Above the High pressure lines off the pump is were th drip is coming from, can't see exactly were to much crap in the way.

Is there anything above the HP line outputs that could be causing it

i checked the fuel lines, all seemed tight but could not get back to one of them closest to the block,the other lines get in the way. It may be sqirting sidways on the block but it seemed the dripping was coming from above:(

This is the second pump and went on 20,000 ago, back in 05
TORQUE THIS
03-18-2007, 07:44 PM
Do you have a pump cover for a fueling box? Might want to check that the cover is tight.
Junior
03-18-2007, 09:18 PM
Pumpcover? Mark all i got right know is Smarty. What is pumpcover?
matt95
03-18-2007, 09:31 PM
There is a cover on the top of the VP that is held on by 4 (I think torx) screws. To tap the pump wire some people use a different cover that punctures the wire.
Junior
03-19-2007, 04:31 PM
So it is possibe that the pump cover can be loose and dripping fuel?

am i able to get it with the throttle cable still on.
Is there any other place the VP44 or line could be leaking?

I am running out of ideas.:dunno:
TORQUE THIS
03-19-2007, 05:23 PM
If not the cover, then you have a loose line. Probably the one way in the back, which requires taking everything apart to get to the back line.
Jim
03-19-2007, 05:59 PM
Whats that seal that was leaking on mooses VP on the way to englishtown?
TORQUE THIS
03-19-2007, 06:10 PM
A seal??? The only seal I know of is the o-ring where it slips into the timing cover...
Jim
03-19-2007, 06:26 PM
maybe it wasnt a seal, but a plug of some sort. where the %$#@ is that moose when you need him:dunno:
Warpig
03-19-2007, 07:32 PM
I would disconnect the line fittings on the pump and reinstall them.
Junior
03-19-2007, 08:40 PM
I will try to get to the back line. Just seems like the drip was coming from above.

Maybe it was spraying up then dripping back down. I will look farther into one night this week.

Truck is up at the parents since that is where all the tools are still. Have not got everything down to may house yet.:idea:
Moose
03-19-2007, 08:46 PM
maybe it wasnt a seal, but a plug of some sort. where the %$#@ is that moose when you need him:dunno: :notworking:

I already replied to this on TDR:nutkick: What Junior is asking is that someone with a "Spare" VP44 take a look at it and see what's on the inboard side. My leak was at the plate at the bottom outboard side of the pump, it's the thing at the bottom of Marco's copy. My VP was leaking at this plate , held on by two Torx screws, with a O-ring inside. Here is Marco's copy http://www.cec-tuning.com/images/bomba-vp44.jpg :smilielol:

Moose
Jim
03-19-2007, 08:50 PM
Oh man I hate it when the Dispositivo variador de avance a la inyeccion leaks:duh:

Anyway whats on the back to leak, anything?
Junior
03-19-2007, 09:07 PM
don't know that is what i am trying to figure out. Looked through service manual and shows and tells nothing:duh:
TORQUE THIS
03-19-2007, 09:30 PM
You could always make a surprise apperance on a Friday night... :beerchug:

We'll fix ya up...
Junior
03-20-2007, 06:05 PM
I am going to look at it tonight, if i still can't figure it out i will think about coming up. As long as you guys are going to be there friday:beerchug:
matt95
03-20-2007, 06:11 PM
I'll be there on friday. Supposed to be a nice day. 60 degrees.
Warpig
03-20-2007, 06:18 PM
I'll be there on friday. Supposed to be a nice day. 60 degrees. Good :beerchug: weather!!
Jim
03-20-2007, 08:59 PM
Im always there:loser: :smilielol:
Junior
03-21-2007, 06:15 PM
Looked at it last night, Took the Throttle cable backet off and was able to see things more clearly. Number 3 injector line is loose at the injector. It is spraying up onto the block then dripping down:woohoo:

So am i able to take the top one off #6 and not bleed it when i go to start the truck, looks like the only way to tighten number 3 is to take the 6 off the pump.

If i habe to bleed 6 how much of pain in ass to get to it under cowl.
Moose
03-21-2007, 07:15 PM
Looked at it last night, Took the Throttle cable backet off and was able to see things more clearly. Number 3 injector line is loose at the injector. It is spraying up onto the block then dripping down:woohoo:

So am i able to take the top one off #6 and not bleed it when i go to start the truck, looks like the only way to tighten number 3 is to take the 6 off the pump.

If i habe to bleed 6 how much of pain in ass to get to it under cowl.


Junior; I had a similar leak after "the new Guy" botched up my VP install. What you need to do is pull off the 1, 2, & 4 Injector line cluster. 1st remove the your APS to get to the clamp under it. remove that clamp and the other ones holding that cluster in. Remove the 1, 2, and 4 lines at the head ( I think it's 7/8 or 19 mm :idea: ) Remove the outboard 3 lines from the VP. Tighten up the 3 inboard lines (3,5, & 6) on the VP. Then reinstall the 1,2 & 4 line cluster, re-bolt the clamps back on, and then reinstall the APS. Then she should fire up, running rough on 3,5, & 6 till 1, 2, and 4 bleed off. ,Or, just bring it to Derby and I'll help you out. Hope this helps, Moose
TORQUE THIS
03-21-2007, 07:20 PM
If it is loose, #3 at the injector, you don't need to remove anything. Just loosen up the line and re tighten.
Junior
03-21-2007, 07:37 PM
It is a loose #3 at the pump. I think #3, one closest to the block, whick you can;t get any tools on. Seems like if i remove line on top off pump then i would have access. Is there much play in the lines?

Can i just remove the one istead of the three?
Moose
03-21-2007, 07:47 PM
It is a loose #3 at the pump. I think #3, one closest to the block, whick you can;t get any tools on. Seems like if i remove line on top off pump then i would have access. Is there much play in the lines?

Can i just remove the one istead of the three?

If you remove the three, you don't have to mess around with the clamps holding the clusters togather. The clamping ss so the lines don't chafe or buzz. Moose
PToombs
03-21-2007, 07:52 PM
Can you get in there with a crows foot wrench?
TORQUE THIS
03-21-2007, 07:52 PM
If you are unsure, let someone who knows get in there... IMO...

If you want to try yourself...

Remove the APPS, 3 13mm bolts up front. Unplug the APPS and move aside.
Remove the intake horn.
Unplug the harness from the VP-44
Remove the 10mm bolts on the intake cover that are attached to the injector lines. There are 5 if I remember right.
No need to remove the small retainers between the lines, 8mm with blue rubber insulation.
Loosen 1,2 and 4 on the head.
Loosen the lines on the injector pump.
Remove 1,2 and 4 in a cluster, don't seperate them.
You should be able to loosen up the other lines on the pump. You'll need to slide the nuts back on the lines a bit to get the 3/4 or 19mm open end wrench in there.
Once they are tight, reverse the above.

When all back together, bump the starter and let the lift pump run for the 30 seconds. Might have to do this 3 or 4 times.

Try cranking, if it starts it will run rough for a a minute. Get it the cab bring RPM's up to 1500 for a few seconds.

If it won't start, you will need another set of hands.

While someone bumps the starter, loosen up the #3 line a bit. Have the person in the cab crank the motor over for no more that 10 seconds. You might have to repeat one or two times. As soon as you see fuel, keep it cranking and tighten it up, it should run. If not, do the same proceedure on the #1 line.
TORQUE THIS
03-21-2007, 07:53 PM
Can you get in there with a crows foot wrench?

NOPE!:notworking:
Junior
03-21-2007, 08:17 PM
Thanks guyswill see how it looks for friday,, Unfortunatly I have to work SAT and SUN:duh:

Might not get there til 7ish
Warpig
03-21-2007, 09:42 PM
Most of us don't get there till 7ish. The 12v guys usually get there way before us normal guys. They are always fixing something that broke :stirthepot:
Jim
03-21-2007, 10:50 PM
Like u-joints from excessive power:exactly:
Junior
03-23-2007, 09:33 PM
OK guys seems i tighted the injector line up w/o taking anythin off.

Few modifications to a wrench which i think voids the warranty, it worked and able to tighten it..

Will keep an eye on it next couple of days and see what happens.

Don't worry guys will be up there in a couple of weeks when i get the injectors:duh: