I have an 85 F250 that originally had a 302 EFI. Because of a myriad of electrical problems and a long story made short (as it were), two years ago I converted the truck over to a carbed 300-6. When replacing the in-tank and high pressure fuel pumps and fuel lines, I had to use an older carbed style (solenoid driven) tank switching valve to switch from one tank to the other. I begrudgingly used rubber fuel lines the entire length of the truck with the idea that I'd eventually change to either steel or back to high pressure plastic lines when the rubber deteriorated. That time has become now.

I haven't seen any fittings that go from the nipple to steel or to plastic. Was the high pressure plastic lines used on carbed vehicles? Anyone else have experience with this? Ideas?
Thanks,
John

 

No carb vehicles that I know of used the plastic tubing. As far as attaching steel line to the valve, you can use a short piece of hose, about 2" long, that goes over both the nipple and the steel line. Flare the end of the steel line slightly with a brake tubing flare tool to help retain the hose.

 

At the risk of asking a dumb question: If the rubber lines were replaced at regular intervals so as to keep them in good shape, is there a significant safety concern with keeping rubber lines??

Or could I expand and hose-clamp the plastic lines to the nipples??

Thanks for the reply Ford six!

 

If you are running a mechanical fuel pump, rubber hose can collapse and restrict the flow of fuel. I wouldn't try to modify the plastic line- it's great for it's purpose, but once you start expanding it, bending it, etc, it has a tendancy to crack.