Packard Forum Index » V-8 (1955-56)

Does anyone know the fuel line diameter on the 1955-56 models/ I am going to buy new line to replace mine. Thanks.

5/16" diameter tubing

Coincidentally had the same question recently but forgot to post. Thanks guys.

Is that the same as on the earlier cars? I’ll likely have to replace the very long one in my 1951 Henney-Packard as I don’t think it’s safe due to rust.

Thank you

If you are going to bend it yourself, I would suggest getting the copper/nickel alloy tubing, which is easier to bend that steel. Also, since it will come coiled up, I would suggest buying a tubing straightening device.

Unless you're doing a concours restoration, it's no problem to straighten Cu Ni tubing by hand.

How is the fuel line terminated on each end?

Mine is so rusty on the engine side that I can't even see how it was originally terminated. I should note that I'm talking about the Carter carb 320 engine.

Inverted flare and nut each end. Tank end has a nut that threads into the tank fitting. Engine end of tube is clamped in the sort of channel in front crossmember on engine side of radiator. After the last clamp end angles upward a couple of inches -- just enough to get the nut at a wrench turning height that is level with or slightly above the crossmember. End winds up just a bit to the passenger side of the pump. That end has another inverted flare nut which threads into the style flex hose that fits 51 and later models. The correct flex hose has a female inverted flare fitting on one end and a 1/8 NPT fitting on the other end which threads into the pump. You can have the hose made locally or most vendors and a I think a PAC region has them. You need this style. The other style flex hose has an SAE flare fitting on one end and will not work.

Thanks Howard. Not exactly a huge discount to DIY it but this is what I came up with. Only 1 of the RockAuto carts is necessary.