Bad Gas

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zigs

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No , it wasn't the taco. I pulled the gas tank on my new ,old Duster. I've heard about gas getting so old that it will turn to a varnish. About 2 gallons in the tank. My wife came out and asked me what I was varnishing . Sending unit totally ate up.
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Even if you are able to clean and coat the tank you're going to need a new sending unit.
 
If your going to toss the sender, I'll pay shipping to take it off your hands. PM if intrested
 
Old gas has that unforgettable smell. Kinda like gear oil and the old high sulfur diesel (everything is ultra low sulfur now). I agree, just replace the tank and be done with it.
 
When I replaced my entire fuel system, my original sender was worse than the one pictured. At the time I didn`t know that all the replacement pick ups wont read right, mine sucks !
I've stripped all the lines. Duster has a different vent system on it then my 68 Dart. The gas tank on the Duster has a three rubber hose in a series into the tank. I can probably bypass some of that as long as the vent tube is vented
 
I've stripped all the lines. Duster has a different vent system on it then my 68 Dart. The gas tank on the Duster has a three rubber hose in a series into the tank. I can probably bypass some of that as long as the vent tube is vented
My new tank had a vent line coming out at the top front, I ran it around and up in the trunk, made 2 small coilshi up, and ran it back down thru the trunk floor, that and orig vented flip gas cap have given me no problems, even when filling it. I had a new 68 fastback back in 1968 , that wouldn`t take fuel w/o spitting back out the filler tube , guess it needed more vent even back then. ????
 
Do whatever suits you.
I put a new tank in my 71 swinger ...because the gas turned to gum, the sender I just soaked and coat hangered clear and I was good. Tank I had in it originally was dual shell, some anti swell version deal couldn't boil it.
 
My new tank had a vent line coming out at the top front, I ran it around and up in the trunk, made 2 small coilshi up, and ran it back down thru the trunk floor, that and orig vented flip gas cap have given me no problems, even when filling it. I had a new 68 fastback back in 1968 , that wouldn`t take fuel w/o spitting back out the filler tube , guess it needed more vent even back then. ????
Ya this a totally different animal then my Dart. Dart has one vent tube exits the trunk floor. The Duster has the filler tube and then a huge vent tube. Between brake line and fuel line I probably pulled about 30' of line out
 
Do whatever suits you.
I put a new tank in my 71 swinger ...because the gas turned to gum, the sender I just soaked and coat hangered clear and I was good. Tank I had in it originally was dual shell, some anti swell version deal couldn't boil it.
Everything's shot . Gas was in there so long it ate the sending unit. Like I said not worth the time messing with it.
 
Wasnt talking you out of it, rock on.
Ya I know its cool . Some guys would go the extra mile and clean it if they can because its original and there's nothing wrong with that. Problem is something setting in a tank that long
things tend to stick and weld themselves to the metal. There's no real assurance unless you scope it that you got everything.
 
Everything's shot . Gas was in there so long it ate the sending unit. Like I said not worth the time messing with it.
That's the way mine was. Be sure and come up with a rebuilt or good orig. sender, the aftermarket ones are junk, at least mine is !
 
That's the way mine was. Be sure and come up with a rebuilt or good orig. sender, the aftermarket ones are junk, at least mine is !
I'd always wounded if a chunk would break off and clog things up. I pay a little more for a good sender.
 
I'd always wounded if a chunk would break off and clog things up. I pay a little more for a good sender.

I would to if doing it over, I just dont like laying under a car for very long anymore, hate pulling gas tanks too !
 
I would to if doing it over, I just dont like laying under a car for very long anymore, hate pulling gas tanks too !
Don't mind pulling tanks , got it down to an art but once I get something set up I don't like fiddling with it again. On my Dart before I put the sender in I made a little clamp with a screw so I could adjust float . Figured where float should be at bottom of tank ., this way if I had to adjust I didn't have to keep bending float rod.
 
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