'65 gas tank hose clips

[Twan B.]

Can anyone tell me if it's safe to use the original clamps for the fuel hose that fits just outside the tank. I do have good experiance using these on my cooling system but I'am a littlebit fearful to use these on my fuelline.
Does anyone know if I can use them safe?????

Twan

[Wayne M.]

Re: '65 gas tank hose clips

Can anyone tell me if it's safe to use the original clamps for the fuel hose that fits just outside the tank. I do have good experiance using these on my cooling system but I'am a littlebit fearful to use these on my fuelline.
Does anyone know if I can use them safe?????

Twan

Twan -- depends on whether your fuel hose is the original and is reduced slightly in diameter where the original clamps have resided over 40+ years. I think you could use the original clamps with NEW hose, without problems. JMO, though. Here's a previous post on the clamps themselves, with several pictures.

https://www.forums.ncrs.org/showthread.php?t=64365&uid=5116

[John H.]

Re: '65 gas tank hose clips

Twan -

Since you're replacing the tank, replace the piece of 3/8" fuel hose too from the tank to the line on the frame, and the green spring clamps will work fine; those connections are sealing vacuum, not pressure.

[Wayne M.]

Re: '65 gas tank hose clips

Twan -

Since you're replacing the tank, replace the piece of 3/8" fuel hose too from the tank to the line on the frame, and the green spring clamps will work fine; those connections are sealing vacuum, not pressure.

John -- if I remember my hydraulics, yes, those lines near the rear frame may be under vacuum (depending) where -- like on the kick-up and further to the rear, the fuel level in the tank, and the rate of flow/consumption. Of course, on the discharge side of the fuel pump, weak clamps or non-flexible /aged hose could be the problem spots.

After hot engine shutdown, heat soak in the engine compartment will tend to push a bit of fuel backwards towards the tank (if the pump diaphragm will allow bleedback).

But with a cold car (ie. parked overnight), Twan is more likely to see weeping/dripping from the rear fuel line clamps than during operation; again, worse with a full tank.