I'm not going to have a chance to get back by my shop until next weekend... which is when I'd like to be plumbing all my fuel lines. So I'd like to get everything ordered ASAP.

So does anyone happen to know the fitting type/size/thread of the feed line on the Discovery fuel rail? My dumbass forgot to check while I working on it this weekend. I'm hoping to to make the move to an AN setup.

Thanks

It depends!:flipoff2:

The early trucks had a 12 m/m compression fitting. The threads were 12 * 1.0. The diameter of the tubing is 8 m/m-5/16".

The GEMS engines used a compression fitting on both sides. I'm not sure of the dimensions-I'll have to run out and measure one.

You may be as well off removing the factory fittings from the supply line and using that as a basis to start with. This will reveal a hose barb that can be of use to you.

Hope some of this helps.

PT

PT once again, you are the man.

Of course mine is an early truck, I have no desire to mess with all that GEMs mess. The hose barb on the return line makes things easy, its just getting something adapted to that feed line that could be tricky. I'm going to give my hydraulics guy a call later today or tommorrow and see if I can't put something together.

Sometimes my ADD/OCD is to my and others' benefit, other times... Gotta make up for the oil pumps in manual tranny mistake:p

As you have an earlier rig, the easiest way would probably be to file off the ferrule from the compression fitting and replace it with a more common compression fitting for the 5/16" diameter tubing (read-imperial to JIC or AN rather than that uber hard-to-find metric fitting). If you really wanted to get fancy, brazing a fitting to the fuel rail would work and is probably the "Right" way to do it.

(send me the old metric hose barb/compression fitting-they're handy li'l guys to have around)

Good luck and remember, AFIRover did a similar thing to his GEMS truck-if he can do it, you can. He's an electrical engineer!

(OT-how was the P-Funk show? Everybody loves a P-funk party cuz a P-funk party don't stop!)

I'm going to talk to my hydraulics guy tommorrow and see what kind of fittings he can dig up. I think I can probably just use a -5 AN compression fitting at the rail, adapt it up to a -6 AN and then it's money. My fuel pump, filter and cell will all be -6 AN at that point.

The P-funk show was in-effing-sane. :smokin: They played a 4 hour set... How'd you know I was at a P-funk show...?

... stalker :flipoff2: