Posted: Tue Sep 25, 2018 10:27 am Post subject: m38 tank liner problem and fuel line shutoff
When the old liner started coming off and damaged the engine causing major repairs, the shop had the tank cleaned and relined. It's been just over a year and the stuff is bubbling and coming off and might be part of my issue in keeping the vehicle running now. I found lining material in the gas once I drained the tank.
A mechanic suggested I look into a bladder for inside the tank since he doesn't like any of the new liner material and how it reacts to todays fuel.
Anyone ever heard of a bladder for these tanks? If so, where can I find one?
He also suggested I replace the inline shutoff since it spins like a top. Any idea where I can find one of those?
Any help would be appreciated.
I have always held no respect for any tank linings. They invariably end up separating from the tank's inside walls sooner or later. There are no bladders I am aware of that will mate to your tank.
Stop working the same football and just bite the bullet and remove all traces of any foreign material from inside the tank. How. That's easy, cut the top off and bead blast the whole interior and weld the top back on. Sound like a big deal but for an experienced welder it is a piece of cake. The best cure to prevent more corrosion from taking place in your tank is to keep it FULL.
The tank shutoff is just a simple brass ball valve. Get into an online plumbing catalog that list Weatherhead (Eaton) valves with 18" pipe female threads on each end. IE
Thanks for responding again. Apparently, not only the tank was coated but the extendable neck too and that's where the stuff has come off, again, and is causing me problems. Hopefully it was caught early enough this time. I try to keep the tanks full on all my vehicles specifically to prevent moisture buildup. This one was down to about half when she stopped running. I took some pics once I was able to convince the sleeve to come all the way up & out. The screening at the bottom has some holes in it and doesn't cover the entire opening anymore. In your opinion, should this be replaced and if so, I can't see how it is attached to the neck. Do they make a plastic tank and I could just keep the old one for when my wife sells it? The shutoff should be easy enough to find witht he info you supplied. Thanks for that too.
If what you want is a reliable tank then I would haul your old tank to a shop that fabricates stainless steel tanks and have them copy it. The sliding tube and screen is only there for refueling in the field where most tankers were exposed to the elements and often had trash in their fuel tanks to transfer to your vehicle. Once you've installed a stainless tank you will never raise the driver's seat again! _________________ Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
Posted: Sat Oct 06, 2018 12:44 pm Post subject: It's back running
Well, with the guidance and assistance of a mechanic, we were able to clean out the fuel system of the lining material scraped from the tank sleeve, replace one filter and all is fine now. I left the sleeve out and will have to have it bead blasted to remove the lining material I could not remove. Learned a lot and I was told, bring it back anytime, it was fun and good having a student. There you go. I did change out the shutoff valve and retained the original one. I decided to leave the throttle and primer disconnected for now but it ran great.
Thanks for the help.
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