Replacement gas tank

Discuss fixes, upgrades and modifications to your M37

Moderators: Cal_Gary, T. Highway, Monkey Man, robi

ZGjethro
SFC
SFC
Posts: 643
Joined: Thu Apr 01, 2010 6:57 pm
Location: Aspen, Colorado
Contact:

Replacement gas tank

Post by ZGjethro »

I took my truck to the carwash today to use their engine degreaser setting on the engine and undercarriage. I like to leave the petrochemical residues there as opposed to my driveway. A few minutes later, I noticed that one side of my bed seemed to still be draining. It turns out the Fire Dept I bought the truck from had put some epoxy over the holes on the tank and I had blown it off with the pressure washer. I got the first pinhole plugged with some fire putty (our electrical shop was near) and made it home. I tried to clean it up a little, and the next thing I knew 8 holes were flowing gas onto the ground. I drained it down, but I think I need a replacement tank. My tank is pretty dented, and I don't know if it is rust or some damage which caused the leak, but I'd like a better tank. Does anyone know of a good one, or a vendor who might have one? Or any modern tanks which fit the truck well.
tbone1004
SSGT
SSGT
Posts: 279
Joined: Sun Mar 17, 2013 10:01 am
Location: Litchfield, ME

Re: Replacement gas tank

Post by tbone1004 »

shame you're not in New England as I've got a spare, but apparently the S10 tanks work with almost no modification. I think just a little adjustment to the straps and you're good to go. Search through here for S10 tank and a few threads should pop up

edit: here's a few

http://www.g741.org/PHPBB/viewtopic.php ... 07&p=41466

http://www.g741.org/PHPBB/viewtopic.php ... 66&p=26638
ZGjethro
SFC
SFC
Posts: 643
Joined: Thu Apr 01, 2010 6:57 pm
Location: Aspen, Colorado
Contact:

Re: Replacement gas tank

Post by ZGjethro »

Thanks tbone. I did see mention of S10 tanks being used. I was not sure how well they fit since I think I read they are in the sub 20 gallon range. I will have to look into them. My truck is a driver, not an original show truck so function and low price are my goals.
tbone1004
SSGT
SSGT
Posts: 279
Joined: Sun Mar 17, 2013 10:01 am
Location: Litchfield, ME

Re: Replacement gas tank

Post by tbone1004 »

the s10 blazers had 20 gallon tanks and from what I hear you just have to adjust for a slightly different fill location and they should drop right in. Hard to argue for $80 from LMC
User avatar
RMS
MSGT
MSGT
Posts: 930
Joined: Tue Apr 03, 2012 2:18 pm
Location: Richmond BC Canada

Re: Replacement gas tank

Post by RMS »

im running a S10 tank. used two longer bolts on the straps and a longer piece of hose for the filler neck. I have not hooked up the gauge, the idea of running twice the amount of juice to the rheostat submerged in gas is disconcerting.
I have had a few leaks over the years at the filler neck. the s10 neck is short and points up a bit. to get the hose to fit tight to the tank it has to be cut on a slight angle(dont use the hose with wire in it) .also use a high quality clamp a little tree rub on the filler neck can pull the hose off the tank :oops:
Image
.............................. use it ...............
ZGjethro
SFC
SFC
Posts: 643
Joined: Thu Apr 01, 2010 6:57 pm
Location: Aspen, Colorado
Contact:

Re: Replacement gas tank

Post by ZGjethro »

I have not had a chance to drop my tank, but for the most part it seems pretty solid. The problem area is the front left corner, and it seems like there is a downward facing dent which has multiple holes in about a one inch diameter area. Has anyone tried a liner like Damon Red Coat or any other coating? If I could get this fixed in an afternoon and the coating would last five years, I would do it. That would give me time to hunt down a better tank or modify a newer tank at my leisure.
ZGjethro
SFC
SFC
Posts: 643
Joined: Thu Apr 01, 2010 6:57 pm
Location: Aspen, Colorado
Contact:

Re: Replacement gas tank

Post by ZGjethro »

I found this plastic S10 tank. For you guys running an S10 tank, does this look like yours? http://www.ineedparts.com/index.php?dis ... ct_id=3886
Would there be any problem using a plastic tank such as not being able to alter it? Would the sender unit be under the bed access hole? Is there a grounding issue for the sender unit?
tbone1004
SSGT
SSGT
Posts: 279
Joined: Sun Mar 17, 2013 10:01 am
Location: Litchfield, ME

Re: Replacement gas tank

Post by tbone1004 »

that's the right tank, no idea about the other questions, but with the sender you just run a grounding strap to the frame, so nbd there, and not sure where the senders end up as far as being under the access hole in the bed, but that's the right one. LMC Truck has the same tank for $99 btw.
JimC
SSGT
SSGT
Posts: 292
Joined: Wed Jul 17, 2013 12:10 pm

Re: Replacement gas tank

Post by JimC »

I would expect that you could alter it with plastic welding techniques.
Sal
SFC
SFC
Posts: 518
Joined: Sat Jun 21, 2008 4:22 pm
Location: N.Y.

Re: Replacement gas tank

Post by Sal »

Rockauto has a few of these Tanks listed And the prices are not that bad.

http://www.rockauto.com/
1954 M37 WO/W
1969 M101A1
1967 M416
ZGjethro
SFC
SFC
Posts: 643
Joined: Thu Apr 01, 2010 6:57 pm
Location: Aspen, Colorado
Contact:

Re: Replacement gas tank

Post by ZGjethro »

For you guys with S10 tanks, Did you need to cut any holes in the bed. I found this article online http://www.fourwheeler.com/project-vehi ... to-04.html and on photo 6 of 16 (scroll on the right arrow) someone is cutting a hole in their bed. My truck has the fuel pump on the crossmember I believe, so it is not in the tank.

Are there any issues with the filler neck? Weird angles or diameter changes?

Does the stock Dodge sending unit fit, or do I need to hunt down a 24V unit that fits
ZGjethro
SFC
SFC
Posts: 643
Joined: Thu Apr 01, 2010 6:57 pm
Location: Aspen, Colorado
Contact:

Re: Replacement gas tank

Post by ZGjethro »

Any good sources of the Phillips head screws used on the bed in areas like the tanks cover plate and the filler tube cover? Mine are in pretty bad shape, with vice grips needing to be used on many of them to get them out
T. Highway
Moderator
Moderator
Posts: 1818
Joined: Thu Jul 09, 2009 4:57 am
Location: S.E. Wisconsin, USA, Earth

Re: Replacement gas tank

Post by T. Highway »

Call John @ Midwest Military, he has them in stock.

Bert
1952 M37 W/W Rebuild @ 59% complete
Engine rebuild @ 95% complete
1985 M1009, 1990 M101A2, 2008 M116A3 Pioneer tool trailer
MVPA # 24265
NRA Life Member
NRA Cert. Personal Protection Pistol Instructor
NRA Cert. RSO
Class III RSO/KCR
ZGjethro
SFC
SFC
Posts: 643
Joined: Thu Apr 01, 2010 6:57 pm
Location: Aspen, Colorado
Contact:

Re: Replacement gas tank

Post by ZGjethro »

Thanks Bert. I went on his site and found them. I wish he'd make an index of his parts so one doesn't have to sort through 12 pages of parts. It can get pricey when you realize you could use this part, and that part also!
k8icu
1SG
1SG
Posts: 1270
Joined: Fri May 23, 2008 5:23 am
Location: Cleveland Ohio
Contact:

Re: Replacement gas tank

Post by k8icu »

ZGjethro wrote:Thanks Bert. I went on his site and found them. I wish he'd make an index of his parts so one doesn't have to sort through 12 pages of parts. It can get pricey when you realize you could use this part, and that part also!
Maybe that's the idea?
M37s are HMMWV in my world!
Post Reply