5.9L 24V Performance Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps Related To Performance And Longevity

Fass install.........fuel leak at tank

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  #61  
Old 06-11-2007, 10:08 PM
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yup...but i only drained the old filter canister yesterday so im giving it a few more days until i start double checking EVERYTHING
 
  #62  
Old 06-11-2007, 11:40 PM
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Originally Posted by CumminsCrazed
they gave me threadlocker........not sure if this is worth a crap or not
Dont use that - you wont be able to get it apart if you need to.


I gave you a whole list of different products and you come home with thread locker...we're TRYING to help you here
 
  #63  
Old 06-12-2007, 07:39 AM
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i know you are, but i got the threadlocker before i came home to see whatcha guys said, i asked for number 2 permetex the blue stuff and he gave me threadlocker, i didntknow whati was looking for. I went back and got the high temp thread sealant. no leaks anymore! except for back at the tank.

Advanced autokids dont know what theyre talking about
 
  #64  
Old 06-12-2007, 08:41 AM
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Ok...If you asked for the :q: blue stuff :q: I can see why they gave you thread locker.

So Exactly where is it leaking at the tank? Or do you even know? Do you have an inspection mirror so you can see the top of the tank?
 
  #65  
Old 06-12-2007, 12:27 PM
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im thinking the old line is just draining the fuel out of it......everything else seems to be dry
 
  #66  
Old 06-14-2007, 09:47 PM
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well, i taped shut the old fuel line that was disconnected and i havent got NEARLY as much of a leak as before, so i think i pinpointed the leak to that......now where does that line go from the tank and why is fuel STILL leaking out of it
 
  #67  
Old 06-14-2007, 09:58 PM
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The whole stock fuel line system runs in the following order.

The Fuel Tank to
The stock LP to
The fuel filter cannister to
The VP44, From here fuel splits in two directions

The primary supply goes to the injectors
The secondary goes to the overflow fuel line from VP44

These meet back up at a T fitting around the back of the block behind the stock filter cannister.


From there it runs back into the tank.

This assumes you still had the rail maounted LP. If you have the in take model just skip the LP stop and go right to the cannister.



Clear as mud.
 

Last edited by Uncle Bubba; 06-14-2007 at 10:00 PM.
  #68  
Old 06-15-2007, 07:35 AM
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i still have block mounted LP, what i want to know is where the fuel line that i took off goes to, the pick up line.
 
  #69  
Old 06-15-2007, 09:02 AM
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fuel, like any liquid (in general) will find its own level and the path of least resistance.

If you removed the line completely - something I don't do - the fuel is coming from the LIFT Pump end of the line - this is where it was plumbed to. That's all it ever did. If you tapped off the end by the tank the fuel is likely still in the line and is somehow coming back up and out of the other end - you'll remember I stated put some compressed air on it and blow it out.

Anyway, assuming all fittings are tight and the plumbing is correct, the truck should run, the pressure should be 15psi and the idle should be smoother, easier to deal with and easier to start from cold.

Because you are in IOWA, I would assume that it gets cold there in the winter, correct? I would also assume that you plumbed the FASS into the rear of the stock cannister, correct? You will need the stock fuel heater and WIF sensor if it gets cold. Just a thought.

Cheers
 
  #70  
Old 06-15-2007, 05:27 PM
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i plumbed the FASS the way it told me to, straight to the lift pump.....do i need to make any corrections?
 


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