Rotten fuel neck

ptothej · Post by **ptothej** » Sat Feb 09, 2008 11:29 am

Has anyone had a rotten fuel neck on their car that they have had to deal with? Is there some sort of repair for that, short of me buying all new parts ie new fuel tank etc.

Typrus · Post by **Typrus** » Sat Feb 09, 2008 3:03 pm

Its metal, so I'd assume you'd need a new neck. It seperates from the tank.
OR... Take it off, remove all traces of gas and flammables, and find out if a very good shop will weld it up for you. I'd imagine you could probably wrap a sheet-metal "sleeve" around it. I have no idea if thats an actual practice though.

splatterdog · Post by **splatterdog** » Sat Feb 09, 2008 3:24 pm

Sorry to discourage you here. I just took a look at the tank I just removed from the parts car. Removal of the pipe could be difficult. The filler isn't quite critical yet but, the small bolts that hold it on look like round head rivets.

If rust isn't falling down into the tank I would consider epoxy. If you want it to last try some "rust bullet". It's a paint over rust type coating, it's like por15 without as much prepwork. I sealed up a bunch of pinholes on the top of my turd suburban's gas tank with it that I found during it's pump job. Not even battery acid will remove it when cured.

It sounds like if you even try to disturb things too much it might fall apart, making a chemical solution more cost effective.

Good luck!

ptothej · Post by **ptothej** » Sat Feb 09, 2008 3:25 pm

Ya, theres a few ways of going about it I figure.. but I was wondering if anyone has attempted or had/heard of this problem before

Mac · Post by **Mac** » Sun Feb 10, 2008 3:45 am

what about replacing it with a rubber hose for a radiator?

perhaps a hydraulic hose would work better.

splatterdog · Post by **splatterdog** » Sun Feb 10, 2008 10:32 am

Most napa's have straight fuel filler hose by the foot. The big problem is, if the filler is at fault it's probably the lower bellowed section at the tank flange, that allows some flexibilty. No way to clamp a hose to that stuff.

Here's a preview of what you could be up against.

Post by **ARCHINSTL** » Sun Feb 10, 2008 1:48 pm

Ouch!
If that's what it looks like - guess I'd better add spraying Goldie's in the Spring. Fortunately, it was rust-free when I replaced all of the hoses in '05.
Maybe take it to a yard or old-fashinoned parts store or even the dealer to see if anyone can figure out a substitute?
Tom M.

Mac · Post by **Mac** » Sun Feb 10, 2008 2:30 pm

i'd clean it up, take off the neck and if the neck is OK, gasket-goop it and put it back on with some pop rivets.

ptothej · Post by **ptothej** » Sun Feb 10, 2008 4:57 pm

I work at lordco, so I do have some bigger heavy duty fuel hose like 1.5" or so up to like 3", and I was thinking of cutting the center section out of that metal neck, just keeping the part that attaches to the tank, and the top of the neck, and putting this heavy fuel line inside of whats left of the bottom and the top of the original neck, but the idea would be to find something that is a very snug fit, also I have this product (again from work) called seal all, and it is fuel resitant, I think its like a silicone but impermable to fuel, so I will use that to seal the bottom and top of my new neck, I think that is gonna be the best bet besides spending 200 bucks my cost on a new tank :S

zenwalk · Post by **zenwalk** » Sun Feb 10, 2008 6:53 pm

I had this problem on my first tercel wagon...kept wondering where all my fuel was going in the Summer...evaporation out of the filler neck! The filler neck is ribbed and had a bunch of rust holes and cracks in the inner rib spaces. I did my best to prep/clean the areas around the holes with a small wire brush and filled the ribs with a brown putty that was designed to seal gas tank holes...can't remember the brand...it was from an auto parts store. It worked like a charm and a year later it still seemed to be bonded quite well. I junked the car soon after that but I keep my eye on the filler neck of my new wagon...it will happen again sooner or later. I don't think the filler neck detaches from the tank pre-1988. I didn't have to drop the tank to do the work. Luckily, there weren't any holes on the wheel well side of the filler tube.

ptothej · Post by **ptothej** » Mon Feb 11, 2008 1:09 pm

Hmm, I do have the stuff to seal the neck like you speak of, perhaps I should just clean er up, I would be hesitant to cut my neck up not knowing the outcome of doing that hahha, Im always afraid of the unknown!

ptothej · Post by **ptothej** » Fri Feb 15, 2008 5:16 pm

So a couple of days ago, I fixed it.. took the tank out, grabbed onto the neck, thought there wasnt much to it, broke it off with my hand flush with the tank. I then cut just after the bend from the top of the neck, got a piece of 1.5" fuel hose jammed it into the tank, took a 2" piece clamped it onto the 1.5" and onto the original neck. One problem which I have yet to figure out, is because the original neck has been changed it doesnt have the vent, so I think I air locked filling my car up, so there was fuel at the top but gauge only read just over half, and when I filled up you could hear it gurgling as the air was coming up the same way the fuel was going down.

neonsport · Post by **neonsport** » Fri Feb 15, 2008 5:31 pm

If you decide to go ahead with a tank and filler neck swap, I have good ones I'd sell.