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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Aug 2019 Posts: 192 'Bolter | | 'Bolter Joined: Aug 2019 Posts: 192 | Just found out the gas tank on my 38 chevy truck has a leak on the top. Does anyone know where I could get a new one? I have searched the parts supplier with no luck. Going now to drain gas out. | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | One can clean it well and epoxy a patch of similar tin over it, easy to do since it is in the top, or brake or weld it up.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Jan 2018 Posts: 298 'Bolter | | 'Bolter Joined: Jan 2018 Posts: 298 |
1937 GC
| | | | | Joined: Sep 2001 Posts: 29,270 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,270 | | | | | | Joined: Aug 2019 Posts: 192 'Bolter | | 'Bolter Joined: Aug 2019 Posts: 192 | Well tank is drained and out of truck. It was patched before. That is where it is leaking. I will have to find a good epoxy to go over the old patches as no luck finding a new tank. Tried tanks inc with no luck. Will call them tomorrow to see if they can make one. Will update when I get it back together. Thanks again for the input. | | | | | Joined: Aug 2018 Posts: 1,004 'Bolter | | 'Bolter Joined: Aug 2018 Posts: 1,004 | hi GradyB
a new tank might be nice, but i appreciate and support your desire to fix the one you have.
Warning - always purge your gas tank before attempting to blow yourself up, what i am recommending could be dangerous if not executed properly.
according to JBWeld documentation,
if applied on clean metal without oil or gas the fully cured epoxy is rated for full gasoline contact, including modern fuel and oils.
however, even a trace of motor oil will keep it from curing proper, i have experienced this phenomena first hand, i would expect most components of gasoline would have the same undesired affect to the curing process. i suggest you bake out all the oils and gas at the local spot before applying the epoxy,
using a propane torch would likely be sufficient, scrub the surface clean after you cook it good.
heat should also allow you to bake off all the old epoxy without so much effort, it will turn to ash before the steel deforms.
but...
if it was me, since it's off the truck, i would go for the acetylene torch and braze a new steel patch in place.
I love JBweld, but if i can put metal on it that's the way to go.
-s
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