Anonymous
Unregistered
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The sending unit in my '97TJ is shot thanks to tainted Shell gas. They will rerpair that, but I'd like to change to the 20 gal. tank since it has to come out anyway. Here's the problem: According to my VIN, it had the 20 gal. when it was manufactured. Could it be a 20 gal. with the vent tube set like some of the 87-90 YJ's so you can only get 15 gal. in it? My tank Part No. is 52018768. The Assembly No. is 52100310AA. I have not been able to confirm what the capacity actually is. If anyone can point me in the right direction I'd appreciate it. 
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derangedcj
Rock Warrior
Reged: 07/28/03
Posts: 734
Loc: Lubbock, Texas!!!!
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You really dont know what size it is? If youve but 18 gallons in....well does it still run? if it does run it dry. Sorry i cant help you any other way.
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83 CJ-7 3 in suspension. All problems currently fixed. Just Everyone Elses Parts. JEEP
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Anonymous
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the only way to know for certain is to run it dry then fill it all the way...
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Anonymous
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When the sender was working right, the most I ever got in it was a bit under 16 gal. That was when the needle was below "E" and the empty light had been on for a while.
I thought running it dry could put the fuel injectors at risk of getting clogged.
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Anonymous
Unregistered
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Edit: I ran the part number through the Stealership - it is a 19 gal. tank. So either the sender has always been off at the low end - reading below "E" with 1/4 tank left, or it's got the vent tube stuffed all the way down inside. I'll find out when I take it in to have the sender replaced. Here's to Shell gas! 
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Anonymous
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i bet the sending unit is off. its not bad for the injectrs since you have a huge great fuel filter. if you get alot of crap in the tank, when you drive it empty your more likely to suck it in then.... but i wouldn't worry about it. i do it with my YJ all the time and have never had a problem with it.
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BigJim
Web Wheeler
Reged: 10/07/03
Posts: 7724
Loc: Central Texas
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Chris
If you install the new one yourself you can fool around with bending the float arm and get the reading to be within talorances. Just plug in the pump wires without putting it in the tank and move the float up and down within the limits of the height of the tank... And watch the gauge It is easy to change the result of the height of the float on your gauge.
If you hire it out the mechanic will simply replace the old with the new and not adjust anything.
BJ
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Anonymous
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Well, hiring it out is where I have to start since Shell Oil is paying the Stealership directly for the sender replacement. I'm going get it in as early as possible so I can look over their shoulders for a while before I have to be at work. I may be able to get them to fool with it a bit; they did say they would check for an overly-extended vent tube and cut it off if that's the problem. Goes in next Wednesday. Thanks All. 
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Anonymous
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Quote:
I'm going get it in as early as possible so I can look over their shoulders for a while before I have to be at work.
beein a semi part time mech...... you'll more than likely just anoy them i personally hate it when a guy brings a car to me to get worked on then tells me what to do.... why the heck did you bring the car to me in the first place??
not sayin the guys at dealerships are any good (most of them arn't) but they will have done a tank or 2 and there methods will be different... jsut don't get the guy with a little husky tool box and the word trainee on his coat.
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Anonymous
Unregistered
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Yeah, I'd hate that too. But since it's the dealership and not my mechanic, and since I don't have any choice because Shell will not write me a check directly, I'll just have to do it. I'll probably be a bit less annoying if it's more like I want to learn something than tell them what to do. Which is pretty much the truth. But I will have a couple of things I want them to check... Thanks BJ.
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