Return Fuel Line Leak ?
 

Anyone had the Return line leak at the fitting above the Bell Housing , ive been chasing a leak and think i found it it was a little loose , at the fitting where it converts from the steel to plastic line

:humm:

There's a Banjo bolt up on the back of the block that feeds the return line. I'd bet on that bolt bein lose. It's hard to see but if you lay across the engine with your feet on the passenger side you can get to it the easiest.

I drew you a picture , this is what im looking at , Why does the return go back into the engine ? whats the deal right here ?

it dont go back to the motor.......that is excess fuel left over from the nozzles that is comming from the back of the head into a "T" where the VP return ties in then they both head to the tank from there

Well i think mines jacked up if tightening didnt fix it

its low pressure so no biggie on re-doing it man

I wonder if i could just replace it with some regular fuel line

I replaced all of mine with regular high pressure hose just like the supply lines. I still have that Banjo bolt in there cause I couldn't get a fitting screwed in and get a hose over it. My hands just wouldn't fit to do it. But if yours is like mine I had to pull the bolt and put new seal washers on it cause they were shot from all the years.

I have some of the washers ill see if it stops with the tightening if not ill take it apart some how

The only way I have found to get to it is to litterally lay across the engine from the passenger side with an open end wrench and reach back there.

Something is leaking like crazy !!!!!!!!!!!!!!!!!!!!!!!!!!

its dripping off the bell housing its diesel fuel where is it coming from ?

Is the banjo on the back of the engine ? Do i take the valve cover off to get to it?

I think its coming from the line i have a star beside does it enter the head or what?

Nope you don't have to take anything off to get to it. If you follow the return line up from the bell housing as it runs up into the the engine bay you will come to a T fitting. Just keep following the line up and a few inches above that fitting you will feel the banjo bolt in there. It's a hard line that runs up to it.

ill see if i can get to it , its not going to be eazy

Ok i layed across the engine feet to the passenger side and was able to line the wrench up with my right hand on the driver side and work the wrench with my left hand at the rear of the manifold , i took it out the washer didnt look to good that was on the bolt , I think theres another washer between the fuel line and engine but i couldnt tell i felt something for sure ... i took a little screw driver and i couldnt get it off so maybe its just part of the engine , i replaced the gasket on the bolt and put it back in and tightened it , ill wait to see if its leaking untill i go somewhere and come back

It's a buggar alrighty, that's why it's the last Banjo left on my truck. I can get the fitting screwed into it but then I can't get to it well enoughto get the hose fitted over it. If you put the hose on first then you can't turn the fitting in.

Well it was leaking , so i pulled it back apart and changed the inside washer , took it for a drive and something is still leaking WTF !

Next fitting down is to check the T for any lose fittings. Should be able to dry the line off though and then feel it to see how high up the wet area is. Past these two fittings the rest of it is tubing. It may have rotted a hole in it but no pressure to blow it open.

I tightened that the other day , nothing up here is wet at all , where if the fuel coming from thats pouring off the bell housing?

Unless it's comin off of the number 6 injector those 2 fittings are it. Other then that it's all hard line up there.

Other then supply lines that is. I don't know where you have them run since your usin aftermarket lines.

Maybe the Stock line is cracked ? its not from #6

Im Heading to Kennys on Monday he has a new return line set up for it ,

This is me washing my hands of it , Kenny will hook me up he has the stuff to build a cummins piece by piece he just dont do anything online , I was out there today he has 6 CTD in his yard , 53 block on 2 of them hes fixing ones a pulling truck from GA and the rest are his

I cant tell where its leaking from

Just get rid of the hard line and put a hose on it. Takes 20 minutes and hose clamps more reliable fittings then the stock connectors anyway.

it goes in to the tee thing and turns to plastic hose then runs to the top of the tank , to replace it all with regular fuel line i would have to drop the tank ,

I poured some radiator Stop leak in the fuel tank , Maybe it will fix it









lol JK

No you don't. Just cut the fittings at the T and the fuel tank unless you know how to get them off the right way, I didn't. Then run the hose from the T to the top of the tank. If you crawl under the truck feet first you can sit up once your under there and get to the top of the tank with it in place. Just put you head up in between the body panels and the frame rails. Plenty of room.

Ok may resort to that , Has anyone ever had Diesel Dripping off there bell housing?

yep.:dd: And it's been that Banjo every time. I used the 2 Cycle for several months and every since then i have had to tighten it up avery 5000 miles or so cause it works lose again. That stuff makes some great penetrating fluid. I've used it on several frozen bolts since i figured this out.

http://i143.photobucket.com/albums/r...inmanifold.jpg

Is this the area your fight in??? :w2:

Thats it I think the steel line is cracked , the trucks over Ken McCabe Diesel hes working on it , im stuck driving the suby i took the truck to work friday even with the leak bad idea it got worst

I hadda slight leaker...forgot to tighten the banjo on mine after replacing the head gasket...it was just finger tight so another half turn with the wrench and it's ok.

Got the truck back it was #6 Injector...... Im So Ashamed :argh:

:U: :w2: :mum::rocking:

Yes I had ALOT leaking off my bell,turned out that it was leaking down the back side of my filter housing,changed the o-ring and all better.....:argh:

Dude!?!?!
The Big cheese himself screwed up??? :ph:
lol

Chad you know you loved when you being picked on (LMAO!) :w2:

lol It must of been leaking inside the cover or something , i should of checked it Major DA Attack :)

I just bought a 19mm crows foot to avoid just such an event...will be able to properly torque'em too.

so on that tee fitting for the return lines... i'm trying to find a hose barb to attach to the line back to the tank... i know the size is 3/8ths something or other compression fitting.... but the hardware store and napa has no hose barb that will just screw on that fitting? anyone know what size or where i could find one. i have a whole f'd up story of how i just rode my bike to the store while truck was out of commission and had the bike stolen but i'll leave that crap out as its not pertinent... i just need to get this sucker up and running again.

You may have better luck starting a thread rather than asking in a thread thats over 4 years old. :c: