FYI Rust proofing fuel gas tank by Moyer's Tank

1941 - 1945, MB, GPW Technical questions and discussions, regarding anything related to the WWII jeep.
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waterdawg2004
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FYI Rust proofing fuel gas tank by Moyer's Tank

Post by waterdawg2004 » Wed Jan 17, 2018 9:21 am

I sent in gas tank from a 1944 MB Willys to be coated inside and outside. Inside is a smooth red color, they removed the filter inside tank by cutting off dip tube, it has screens on both sides and was offset from the bottom. Looks like a previous owner had poked holes in it anyway, I will use an under chassis inline filter as a replacement. Outside is a thick black almost rubber like coating, very thick, see pics. I will try and paint. Also cost was $476, about the same as a new tank.
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1944 MB Jeep
37mm Gun, Antitank, M3A1 USA
French 25mm SA.L Model 1937
Replica Kubelwagen from VW Thing


Jeep Fun
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Re: FYI Rust proofing fuel gas tank by Moyer's Tank

Post by Jeep Fun » Wed Jan 17, 2018 7:40 pm

waterdawg2004 wrote:
Wed Jan 17, 2018 9:21 am
Outside is a thick black almost rubber like coating, very thick
Is the outside coating to seal pin hole leaks? That is not the way to rust proof steel nor seal leaks in my opinion especially on something so visible as a Jeep fuel tank. The inside coating makes sense. Perhaps the OD paint will stick but I wouldn't bet on it.
Ed Fallon

GPW 1943 91901 DOD 1-8-43 restoration in progress

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W. Winget
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Re: FYI Rust proofing fuel gas tank by Moyer's Tank

Post by W. Winget » Thu Jan 18, 2018 7:12 am

Too late now, but if you had searched I did a posting on an excellent solution using Caswell sealant.
It goes inside and forms a glass like epoxy chemically impervious coating that would set you back about $80 (20 gallon tank size).
I used it about 6 years back, have basically forgot about leaks.
Outside of tank I just painted, used the excess sealant that I poured out of the tank (per instructions you coat it then dump the excess out) to coat my fuel tank well bottom to keep it from rusting out too.
Your tank looks nice, I hope the straps fit and it seats well in the well.
V/R W Winget
http://www.caswellplating.com/epoxy-gas ... quart.html
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