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Whats the deal with the offset gas tank?

Jonnyuma

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Okay, so I'm under the car working on dropping the gas tank today. WTF for, you ask? Cuz cleaning out my grungy gas tank is on my "winter project" list. It needs it for sure, the gas in my filter looks like bourbon. So, the question is: who wants to sell me a later model, center-mounted tank!!!??? Dual exhaust is practically impossible with the goofy-*** offset tank. I thought I would be okay with the 2 into 1, 3" custom exhaust I had built a couple of years ago, but I'm not. Duals are the **** and we all know it. I've got performance upgrades planned and this is going to become an issue sooner or later, so I'm addressing it now. I'll be posting a WTB ad soon but, really, who even reads those?
 
Ive got another question about gastanks....After cleaning a old gastank... should i be using a sealer copaund for inside the old gastank. I remember seeing one for sale once but didnt buy it///anyone know
 
Oh, sorry. It's a 76 Cordoba. I've seen the gas-tank refurbishing kits, Eastwood sells one for around 50 bux. It comes with the sealer but I don't think I need it. I dont have any leaks, I just want to clean the rust out and replace the sock. Maybe the sending unit too while I've got it apart cuz I've swapped all the factory gauges for Stewart Warner units, including the fuel gauge.
 
You need a '74-6 B-body fuel tank for dual exhaust. The interchange is '74 all models except the S.W. and the '75-6 B-bodies (again, not a S.W.) that came with factory duals.
 
sealer

And usually the sealer is to seal the metal inside the tank to keep rust from returning in the tank not to stop leaks.
 
What are your future plans for the fuel system??Add a sump to the next tank?Increase the pick up diameter for more flow??Do you want to keep the stock tank or step up to a fuel cell?Plan ahead and make the right mods from the get go,or end up doing it again later:munky2:
 
Oh, sorry. It's a 76 Cordoba. I've seen the gas-tank refurbishing kits, Eastwood sells one for around 50 bux. It comes with the sealer but I don't think I need it. I dont have any leaks, I just want to clean the rust out and replace the sock. Maybe the sending unit too while I've got it apart cuz I've swapped all the factory gauges for Stewart Warner units, including the fuel gauge.
All you have to do is move the tank over when you put it back. Mopar Performance Magazine did a piece on this in the late 80's.
 
You can get a new 20 gallon tank (it's the dual exhaust model) from a variety of sources just search for a Spectra CR21A. If you want a stock 26 gallon tank let me know, the one I took out is in near perfect condition.
 
Not too sure about the "just move it over" scenario. The strap's attatchment points and filler neck would need extensive modification. Adding a sump and/or increasing the fuel line size won't be on the agenda either. This isn't a drag car, no need for all that go-fast paraphanalia. It's more of a beater/driver, although I've has people object to the term beater. I see no reason a beater can't be cool or reasonably quick, but more importantly, reliable transportation. I've got a straight, rust-free car, but its no drag car. I'd be interested in your 26 gal unit, toolguy, but I'm in eastern OR and I think the shipping would be too much to handle. I'm going to look into the 20-gal replacement, thanks for the lead.
 
my 78 has dual on it with offset tank just run them right under the frame rail, here a link to a picture
http://www.daveschultz.com/palbum/showfull.php?photo=8212

Under the frame rails is what I did on my '75 RR, and it works great. Moving the tank over is not an option. And I would not use the tank sealer from Eastwoods unless you have your tank acid dipped before coating. A friend used it and did not get the tank clean enough and it pealed off. It clogged up every thing all over again. :eusa_wall:
 
Well, I was expecting the worst; rust, crud, etc. The inside of the tank is spectacularly clean. That threw me. I'm gonna clean out the few floaties I found, replace the sock, and call it good. I had to order the sock off of E-bay, I can't believe how hard that little part was to find. I always try to buy locally first, but these local parts stores are making harder and harder every time I go in looking for a simple, easy-to-stock part and they tell me they can't, don't, or won't have it. Ever. I'm also gonna try again with the duals, the picture was helpful, thanks for the link.
 
Not sure on the difference from the 76 to the 79, but I took out the single y pipe and replaced it with duals a long time ago with no problems. The only trick was getting around the tranny linkage. Good luck and I feel your pain with the fuel sending unit, I couldnt find a replacement for mine, had to reinstall the stock one.
 
Some time along the way (I beleive it was part way through the 77 run) Chrysler stopped installing the 25-gallon "single exhaust" tanks and only used the 20 gallon tanks. As far as the socks go they are available from year one.

BTW - the filler neck "gasket" is also available from year on but don't order the B-body one it won't work, the A-body gasket is the correct one (right down to the molded in part number for the resto crowd).
 
Some time along the way (I beleive it was part way through the 77 run) Chrysler stopped installing the 25-gallon "single exhaust" tanks and only used the 20 gallon tanks. As far as the socks go they are available from year one.

BTW - the filler neck "gasket" is also available from year on but don't order the B-body one it won't work, the A-body gasket is the correct one (right down to the molded in part number for the resto crowd).

Hey toolguy....that's good info on the gasket....the socks are available from Vans Auto at a fraction of the cost of Year 1. They also have complete sending units for a '76 B body. http://www.vansauto.com/
 
The sending units are available just about anywhere, NAPA, Schuck's, Rock Auto, whatever. My sender was okay so I didn't want to spend that much when all I needed was the sock. I never even considered Year One. Never heard of Van's. I Googled it a bunch of different ways and niether of those two ever came up. O well, its here now. Anybody know where I can get the sender-to-tank gasket? By the time I replace the bits and pieces I probably should've just replaced the whole thing. Duh. Sometimes trying to save a buck or two gets expensive.
 
I would imagine you could get the sender to tank gasket at just about any parts store.
 
Same as with the sock, toolguy. I went looking for the lockring and gasket and kept coming up with the same thing, ie: $5 for the part, $7 for shipping. Even from the local stores. Why in the world would I pay the same amount to have something shipped to the store as to my house? The added bonus of having to put on pants to go up to the store? No thanks. Insert my earlier rant about this subject (here). If this keeps up I'm gonna go full internet and just bypass the local guys as a matter of course. Oh, by the way, Van's, which I earlier said I'd never heard of...happens to be the guys I got the sock from. They seem to be good guys and, even better, knowlegable. Not like me when trying to spell knowlegable.
 
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