kd460

Well, I got 2 1/2 years out of my current fuel lines running as much bio as I can when I can.

This past week, I started to get the difficult to start when pointing up hill, and when the fuel tank is less than 1/2 full, so I figure it's the fuel lines. The engine turns over good and strong, and the fuel solenoid will pull up just fine, so it's either the solenoid relay or the fuel lines. My guess is the fuel lines, but I'm gona replace the relay anyways.

Any how, I remember someone talking about barbed banjo fittings for the rubber fuel lines. Of course, can't find it with a search.

So, any one know where to get them and what sizes do I need? I assume I will be able to use the current banjo bolts (after I drill the holes a little larger).

Still looking for some nice bio resistant fuel hose as well, but thats the least of my concerns right now. Thanks,KD

infidel

My local John Deere dealer has them in stock as should any hydraulic shop. Hole diameter is 12mm, barbed end is whatever you specify.

Don't think you need them though. Upper rubber hose rot causes hard starting no matter the tank level.
My guess since you say the problem occurs at half tank or less is that one of the metal lines on top of the bell housing is cracked or the fuel pickup tube in the tank has a hole in it.
Doesn't take much of leak to cause trouble, fuel might not drip to the ground if the metal tubing is leaking, reach up on top of the bell housing and feel for wetness.
Cheapest/easiest way to fix this is to run hose all the way from the tank to engine, abandon the metal lines. Just need hose and a few clamps to do it this way.

There are sharp self tapping screws holding the tank module together that have been known to rub a hole in the pickup tube causing the half tank problem.

kd460

Abandoning the current lines is what I plan to do. I know exactly which lines your talking about on the bell housing. On mine truck it goes metal lines on the frame, then braided hose that has hard metal line again (at the bell housing) then the rubber hoses that go from there to the the two metal lines (painted black) that go the the fuel pump (feed) and the inj. pump (return).

I want to run rubber hose from the metal lines on the frame directly to the lift pump and the inj pump.

Thanks for the info, I hope its not the fuel pick up (5th wheel hitch plates mounted in bed of truck), it does not happen all the time, and it has happened with higher fuel levels than that. It sometimes does not do it at all. The only real common denominator is when the truck is not level, thats partly why I want to replace the relay as well as the fuel lines. Just to eliminate as much as possible.

Thanks for the tip about the John Deere dealers. Any online sources?

Bill, thanks again for your help. KD

infidel

I had a real good source in Florida for banjo bolts when I was tapping and selling them for fuel pressure gauges but their website disappeared. Couple months back I tried to find an online source, all I came up with is this, http://www.recreationalmobility.com do a search for banjo
Their prices were three times higher so I never did business with them.
Also I was wrong, the bolt size is 14mm

kd460

Thanks again! Glad I did not buy anything yet. So 14mm it is. I did a search most of last eve for "12mm banjo", and the only stuff I found that was barbed was in the smaller 1/4" and 6mm range for the barbed hose fitting, but that was in 12mm. The link you provided did not have any pics. and the description was minimal on their website.

Turns out I am thinking more on the relay than anything else. It was really acting up today. Had to make a few stops on the way home from work. Every stop I made, it would not start. I would pop the hood, lift up on the plunger for the fuel solenoid, and it would start right up.

New starter contacts (heavy duty) last year, so probably not that. Gonna order a new relay from Larry B.

I suppose I can just eliminate the section of hose that is braided and contains thos little sections of metal tubing you mentioned. I just use the current metal lines on the frame, and the metal lines at the pumps, and run rubber between them.

I'll do another search for 14mm banjo and see what I come up with. KD

kd460

No luck finding the barbed banjos, so far.

As far as the roblem with my truck, it seems like it was/is the fuel solenoid relay on the firewall. I took it off, sprayed some electrical cleaner and lube inside the relay, and reinstalled until the replacement from Foster arrives. For now it seems the problem is gone.

Still going to replace the fuel lines on thursday (weather is supposed to cool down then). I did see those nice fittings from Vulcan. Instead of barbed banos, they are hose niples. Only problem is they are 12mm for the 24 valve people. So far, nothing found in the 14mm size, but it does give me another search option. KD

Jim Fulmer

Bill is this the place you were talking about http://www.batinc.net/

I ordered M14 x 1.5 to 6 AN banjo's, bolts and washers from them to replace all of the fuel lines from my pump. They also have M16 x 1.5 for the fuel inlet with the helicoil removed to an 8 or 10 AN.

Jim

infidel

Jim, no it was a different place.

I found the place again, they have every banjo fitting you can think of
http://www.hydraulic-supply.com/html...o-fittings.htm