fuel leak need help

cummins-dodge · #1 06-12-2011, 10:55 AM

on my 01 i have a fuel leak on the back of the motor i have tighten up the banjo bolt on the back of the head and the t-fitting where else can it be leaking from it only leaks when the truck is running

01 dodge quad cab 5spd 280000 miles cold air intake afe, cooler tubz, duel electric fans, airdog 150, edge juice att. hot unlock, industrial injection dragon fire pump, .093 connector tubes, .093 lines, ats head studs, 300 hp injectors 7x16 , s400 turbo and s300 twins, custom billet intake plate, cooling mist water meth injection, valair twin disc clutch 3850lb, 1 3/8 input shaft, south bend upgrade hydulics, duel 6 inch aussy stacks, 4 inch lift, eagle alloys, 35x12.50x16.5 bfg's, ranch hand front and rear bumpers, valair on board air with Siberian express train horns,
Pulling stats.
Hanks 4x4 3rd 282.56ft

01 dodge reg cab 5spd 279000 miles cold air intake afe, cooler tubz, single electric fan or I can put the stock clutch fan on, air dog 150 new 1 month old, stainless steal nerf bars, edge juice att. hot unlock, .093 connector tubes, valair single disc clutch, 4inch from turbo to duel 5 inch miter stacks, leveling kit, American racing wheels, 33x12.50x16.5 bfg's, ranch hand front and rear bumpers for sale

84 Chevy k30 reg cab with 94 12v p pump Cummins and nv4500 trans 205 transfer case 3 inch body lift, 6 inch suspension lift, 36x14.5x16.5 parnelli jones dirt grips, 16.5x12 weld scorpio wheels, dana 60 front, duramax rear axle, duramax intercooler, schied custom injection pump, RQV gov., 370 injectors that are extrude honed bigger, o- ringed and head stud, milled off intake, sbc valve springs titanium keepers and retainers, portand polish head, marine lift pump, custom ground cam, cooling mist water meth. injection, valair twin disc clutch 3850lb, 1 3/8 input shaft, valair hydulic upgrade, industrial injection silver bullet 66 turbo, no fuel plate, .093 polish stainless steel fuel lines, aluminum radiator, single 5 inch miter cut stack
Pulling stats
Hanks 4x4 7th 256ft

03 Honda Rincon 650 1500 miles with 2 inch lift, 27 mudzillas, 1 1/2” rear wheel spacers, 1 inch front wheels spacers, hmf pipe, dynatek cdi, dynatek coil, k&n air filter, rejeted 170 main, spring clipped 8 coils, 5000 lb winch, heated grips, 14% gear reduction, 2 inch snorkel

95 Yamaha warrior 350 bored out to 366, stage 2 hot cam, JE 85mm piston 12.5:1 compression, new rod, k&n air filter, white bros. pipe, bigger coil, performance cdi box, nerf bars, oil cooler mod, full skid plates, heavy duty racing clutch, jetted

07 Kawasaki klx250 on off road bike moose air filter, fmf pipe mostly stock

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crazycooter · #2 06-12-2011, 12:56 PM

did you check your injector tubes? or injector lines? just a thought, its not a powerstroke so it can only leak in so many places

easy way might be to take it to the car wash and get it clean under there first so you can see it better.

RAW · #3 06-12-2011, 03:45 PM

The sealing washers on the banjo bolt on the back of the head could be failed, and no ammount of tightening of the bolt will seal it. The seals in the T could be failed as well, if they were loose, there might a reason they were loose. If #6 injector line is loose it may be leaking, but it would get worse and worse.
I have been able to look at the back of the head by laying on the ground looking up from the left side of the bellhousing. Might be able to have a look at the leak.

cummins-dodge · #4 06-12-2011, 03:56 PM

the injection lines are all tight and not leaking it is all dry a round there i can see that it is all well above the tappet cover buy the return tee but i tighten them up and the tee is dry and i had it running and i felt all around the lines and i dont feel fuel coming out but i can get in there to good

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were do you get seals for the tee

cummins-dodge · #5 06-18-2011, 09:19 AM

i changed the o-ring washers on the banjo bolts and it is still leaking fuel when running what else could it be

dukeboy_318 · #6 06-18-2011, 10:43 PM

i have also seen the return line split, when the one on my old 98.5 split, you couldnt see it very well, just a hair line but under load, itd spray everywher

imgebo · #7 06-02-2012, 11:43 PM

my transfer pump is leaking from the bottom (where the electric connector is) when the truck is running

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