GAS TANK question

[StraightSixer]

My gas tank sloshes a lot. When I park in my driveway (it's inclined) and the car naturally rolls back a bit, I can hear the gas crashing against the walls of the tank, it's usually louder, for obvious reasons, when the tank is full. Also the filler neck, the exposed part in the trunk, leaks small amounts of gas. What parts do I need or where's a good place to get a new tank? Much Obliged,
jc

 

[CoupeBoy]

ya, the tank will slosh because the old gas tanks, pre-EFI had horrible (or no) baffling in them. As for the filler neck leaking is it the rubber mounting to the neck or the neck where it fits into the tank. You should be able to get a local radiator shop to reweld it if that is possible. Call around and see if you can find anybody that will do it.

In my old hometown there was a place that would run an exhaust hose into a gas tank for a half an hour until they felt confident that there was no free oxygen in the tank they would weld up cracks or splits, even with gas in the tank..

-ron

 

[ludwig]

They sell quiet packages for the body at Mustangs Plus. They also have a mat for the trunk floor alone. I got one and it helps cut down the road resonance and the noise from the tank. I was shocked to see what I had sent away for. It was just tar impregnated paper like you put on a chicken coop.
I think you could save yourself a sawbuck or more by making your own sound deadener sheets out of 40 lb (=#40) roofing felt. That is all the mat is and it's just pre-cut stamped from the parts vendor. Get the conventional stuff from a good lumber yard or roofing supply place. If you get a roll, you can trim it to taste with a utility knife. Unroll slightly more than you need in a sunny location. Let it get warm, not too hot to handle, spread it out in the trunk and trim it. Then throw the decorative mat back down. It quiets the whole thing quite a bit. Put in two layers if you want. It's cheap.

 

[Anonymous]

Quote me: "never ever weld on a used gas tank" Anyone who agrees to weld on an old tank is setting themselves up for an explosion and will be selling you junk. John's mustang will get you a new tank and buy the new ford fuel sender. couple clamps and a filler neck hose from any parts store will give you what you're looking for. No Slosh (all the sediment is what you're hearing) and a safe seal,also clean fuel to the carb, Not to mention another thirty years trouble free maintenence.[/b]

 

[StraightSixer]

well thats a relief, I think i'll fix the worn rubber part and just wait until I can get a new tank.
jc

 

[CoupeBoy]

I do have to disagree with ivygreen, to some extent. Do not weld a rusty or corroded tank. But if your experiences an 'accident' where it cracks or something rips through it a tank is like any other metal surface and you can weld them back together.

However if you decide to buy a new tank and sender you might want to consider getting a newer ('72 I think) that is 22gal instead of the original 16gal. almost a 50% increase in holding capacity. The downside is that you will lose some trunk space and you will have to modify the filler tube.

-ron

 

[MustangSix]

Mustang tanks are relatively cheap (~$100) and very easy to replace. Repairing one is a fool's errand and not worth the effort.

The 69 and 70 tanks are bigger and will fit with minor mods to the filler tube.