Threaded gas tank filler neck removal

Chris

Chris

Well-known member
Hey guys,
I am putting a new gas tank in my 1933 Ford pickup. I have the tank loose but I can't drop the tank all the way out without taking the filler pipe off. I also need it to go on my new tank. It looks like the filler pipe goes into a sleeve with notches on top and that sleeve threads into the tank. How do you remove the pipe from the tank? Is the notches on the sleeve for tapping/turning the pipe? I tried tapping on it a little but it is not budging and I figured I should make sure I am doing it right :D

Thanks!! Chris
 
weird. I am in no way an expert, but I wonder if It has a weird socket. Kinda like a 4wd hub socket, but with more notches. Is there even room for something like that? Good luck. It sucks waiting to find out something like this, It's not like you can go out an destroy the part to get it out.
 
It sound like the filler on my 37' Tudor, I had the same problem a year ago, it most likely takes a spanner wrench or you may try a "belt" or "strap" type wrench like the ones used to take off a oil filter.
You can find a spanner @ www.mcmastercarr.com
Hope this helps...... Ron
 
They actually made a tool for removing them. It had a pin-like piece that went into one of the notches and locked into place allowing the turning/removal of the neck piece. I no longer have a spare one of the wrenches. A strap wrench will also work if you can get the strap wrench around the neck. I could not do so with the fender on the vehicle. I bought a chain wrench that works like a strap wrench. I put a piece of cardboard between the chain and the neck so it would not scratch the neck piece. Worked like a charm and I did not have to take the fender off to use it.
 
The first thing you want to do is soak the threads with a good penetrating oil (I use Kroil or PB Blaster) where that collar threads into the tank. Then go find that spanner wrench that someone else here mentioned. You can find it on the McMasterCarr website or in their printed catalog. I had posted the actual part number for this wrench on the old Barn and maybe if I look back in my files I can find that number again. I believe I read a post saying that Lawson Cox ordered one of these wrenches so maybe he would still have the number to post here. You could click on his Avatar and send him a personal message. Good luck, JM
 
Thanks everyone for the help. I had PB blaster soaking on it all night and today a few taps with a punch and it was loose. I'll order up one of those spanner wrenches, I can see were they would come in handy if the filler pipe was rusty/super tight!
 
You probably know this but Just a reminder that you must use a lead washer against the tank between the filler neck and tank.
 
Chris said:
Thanks everyone for the help. I had PB blaster soaking on it all night and today a few taps with a punch and it was loose. I'll order up one of those spanner wrenches, I can see were they would come in handy if the filler pipe was rusty/super tight!
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When you get ready to put that filler neck back on the tank, do as Keith Oh said, make sure you have a good/new lead gasket to go in there, and also clean the threads good on the collar and going in the tank, then using that spanner wrench, get the collar good and tight against the seal. I think G.M. also uses some type of sealer on both sides of the lead gasket prior to assembly, but I don't remember exactly what he uses. You could send a PM to him and ask that question. Good luck, JM
 
JM 35 Sedan said:
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When you get ready to put that filler neck back on the tank, do as Keith Oh said, make sure you have a good/new lead gasket to go in there, and also clean the threads good on the collar and going in the tank, then using that spanner wrench, get the collar good and tight against the seal. I think G.M. also uses some type of sealer on both sides of the lead gasket prior to assembly, but I don't remember exactly what he uses. You could send a PM to him and ask that question. Good luck, JM
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Thanks guys. Yes, I bought a lead washer with my new tank. I also cleaned the whole filler neck and am getting ready to paint it. Thanks everyone for the help.
 
Chris said:
Hey guys,
I am putting a new gas tank in my 1933 Ford pickup. I have the tank loose but I can't drop the tank all the way out without taking the filler pipe off. I also need it to go on my new tank. It looks like the filler pipe goes into a sleeve with notches on top and that sleeve threads into the tank. How do you remove the pipe from the tank? Is the notches on the sleeve for tapping/turning the pipe? I tried tapping on it a little but it is not budging and I figured I should make sure I am doing it right :D

Thanks!! Chris
Click to expand...
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I went back in my notes/files and found my previous posted info on this subject that gives two McMaster-Carr spanner wrench part numbers. JM

"The threaded collar on the gas filler neck is ~ 2-1/4" in diameter, with spanner/side holes in the collar measuring ~ 5/16" in diameter. Click on the URL link below for a list of McMaster-Carr spanner wrenches. I would recommend their PN 5475A16 for a fixed (A) pin style, or 5472A5 for an adjustable (C) pin style"
 
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I did not have the "proper" spanner wrench, so I just used my ever-ready Channel-Locks. It worked great ! Also, you can use a 2" O-Ring, instead of the lead washer.
MIKE :)
 
I had the lead seal go bad from the new gas. I just replaced one. I used blue sealer that they use for refrigaration , it seems to be holding but time will tell. The 2" rubber o ring sounds like a good idea. Just wonder if it will hold up with the gas? MSC supply sells spaner wrenches that fit , Sorry I can't remember the correct size. Frank pkny
 
DAVE/Green Bay . . . . . . . . . . .
I have only had it in for three years, but no problem, so far !
MIKE :)
 
Good info on the seal guys, go everything all together but didn't notice Bob Drake's tanks will not accept the original fuel pickup/sending unit without a special adapter...so now I have that on order and hope to be driving it in a couple days.
 
Chris .............................
Bob Drake made the tanks for the convience of the hot-rod guys. If you want to go original, you have to buy his adapter.
MIKE :)
 
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