Replacement gas tank

So,

Where do you recommend obtaining a replacement gas tank for a '74 CJ5? Not looking to increase capacity, more looking to stop a leak.

 

Steel or Poly? I do have the original tank shield still on.

 

Fix it with JB Weld. I have used fiberglass cloth and resin, but I read recently that the resin is soluble in some modern fuels. Today I'd use JB Weld and some fiberglass cloth, then paint the entire outside with a moisture-cured urethane. POR-15 has a kit to seal the inside of fuel tanks, which would work well if the tank is rusty on the inside. http://www.prp-porstore.com/page/por15/PROD/TankSealers/FTRK

 

I tried JB Weld and it leaked through after a couple weeks. Not large holes, just dripping. Did you slap it on thick? Seems like a lot of trouble to go through to save $100.

 

If $$$ isn't an issue, getting a new one makes sense. I'd do anything I could to save a hundred bucks, though

 

Money is always an issue, just wondering how long the patching repairs are to last. Not wanting to fix every couple of months or get stranded on the trail...

 

Looking at the MTS tanks listed for sale. Looks like the pre 1976 CJs require straps to mount it. Would like to find a tank that uses the original three point attachment for the steel tank found on the Intermediates. Two corner bolts in back. Center bolts in front. Any suggestions? I am not set on a steel tank, just wary of putting up straps and trying to connect to new or stripped mounting holes in the frame...

 

Sparky,

Only found sites retailing MTS tanks, not one directly to the owner of MTS. Can you show me the way?

Thanks. Scott

 

Sparky, thanks. The web site states
"1972-1977 Jeep CJ (exact fit 1976-1977) 15 gallon tank. Will fit 1972-1975 but requires OEM style skid plate and straps. Also fits 1972-73 Jeepster C101 and 1971-1973 DJ. Includes lock ring and O-ring."

What year did you mount it on? Did you need a strap?

 

On a '72-75, the skid plate is optional. The tank will support itself without the skid plate. There are no straps AFAIK - instead some brackets (?) It may be that this poly tank can't be supported by its edges, and requires the skid plate to hold it in. Sounds like a phone call is in order.

 

Well, it's been 30 years since I've done this, but I think the tank is stamped in two halves, with ~ 1" sticking out all the way around. The two halves are resistance welded together, leaving a shape like a big pillow with a flange all the way around it's perimeter. I think the flange bolts to brackets coming down from the crossmember above the rear axle, and to the rear crossmember. The skid plate also goes to the front brackets, and fits onto the bottom of the rear crossmember, where it's bolted through.

These tanks tend to rust from the outside in becasue of water trapped between the cork (? ... something) pad that fits in the space between the skid plate and the tank.

<later> Yeah, I looked at the '72 manual at c104.net and the above is correct. No straps.