JB Weld on gastank?

[madmax-im]

Bought this Honda civic cage to save gas on my commute and now I find the gas tank has a leak on its bottom side. How well would JB weld work to plug a hole
about 2/3rds the size of a dime?

[jwhughes3]

Temp repair until you can fix it right by replacing it.

Gas tanks are usually easy to remove and replace if empty.

John

[madmax-im]

Temporary is what I'm looking for... definitely not a permanent solution...Getting all the gas out of it before attempting to patch tank...won't take it out...too much rust...Thanks John

[fredintoon]

Bought this Honda civic cage to save gas on my commute and now I find the gas tank has a leak on its bottom side. How well would JB weld work to plug a hole
about 2/3rds the size of a dime?

Hi Madmax,
JB weld by itself might fall out from vibration from that large of a hole.
Here is a bodge.
Get a wallboard anchor, the sort that has 2 little legs you poke through a hole and they spring out inside then you do up the screw to tighten it.
And a fender washer.
Put the fender washer on the wallboard anchor.
Slather the side of the fender washer that will face the tank with JBweld.
Shove the fastener legs through the hole and let them spring out inside the tank.
Tighten the anchor screw so the washer tightens onto the tank and the JBweld squishes out.
Let the JBweld set up before you put gas in.
Should hold OK until the rest of the tank rots out.

[jetmechmarty]

Better still, your local auto parts store may have some purpose made putty to fix that leak.

[mharrington]

JB Weld turns into mush from gas exposure! The auto parts store has specific products. Ive used this with success but the area needing repair must be dry!





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[madmax-im]

Interesting fix Fred...I. will want something that is resistant to gas and other solvents...so my question about jb weld was bourne from ignorance. Thanks for all the replies folks...will be heading to the autoparts place tmrw.

[MarkD]

+ 1 on seal-all. Good stuff for fuel leaks.

[trbig]

http://www.ebay.com/itm/CARGO-QUIKSTEEL-QUICKSTEEL-Steel-Reinforced-Epoxy-Putty-METAL-REPAIR-WELD-2oz-/170699425913

Scroll down and read everything it's good for. I've used this stuff for years. Any auto parts store or Walmart carries it. I've used it under oily conditions out in the middle of nowhere when I punched a hole into my crankcase on the dirtbike. That was 2 years ago and it's never leaked. I've punched a small hole in the bottom of my fiberglass boat on a sharp rock and dove down to install it in the hole under water. Years later, it still never leaked a drop. You won't have to drain your gas tank and it'll be a permanent fix. Even with the gas dripping, knead it together like Playdough for a couple minutes, then smear some into the hole, then build a quarter sized patch around it.

I thought about trying to use it on a broken float post. Seems impervious to about everything that I've thrown at it. I try to always carry some in my tool bag on trips. Maybe next time we'll try it on Greg's ribs?

[madmax-im]

Thanks Tod..sounds like that's just what I'd want

[madmax-im]

ebay price with shipping is a ripoff...but locally at Advaned Auto its 6 bucks...

[fredintoon]

Interesting fix Fred...I. will want something that is resistant to gas and other solvents...so my question about jb weld was bourne from ignorance. Thanks for all the replies folks...will be heading to the autoparts place tmrw.

Hi Max,
If JBweld don't stand up to gas by all means use a better suited compound as a sealant but stop by the builder's supply store
on your way to buy that better class of goop because I reckon you still need the wallboard anchor and fender washer
What I'm worried about is the size of the hole you are trying to fix.
A hole "3/4 the size of a dime" is just over a half-inch in diameter.
An unsupported blob, even of stuff that gas won't touch, has a good chance of falling out of that big of a hole.
That's why I suggested the ol' fender washer and wall anchor trick.

[madmax-im]

Hi Max,
I've only ever fixed pinholes and solder works for that.
If JBweld don't stand up to gas by all means use a better suited compound as a sealant.
What I'm worried about is the size of the hole you are trying to fix.
A hole "3/4 the size of a dime" is just over a half-inch in diameter.
An unsupported blob, even of stuff that gas won't touch, has a good chance of falling out of that big of a hole.
That's why I suggested the ol' fender washer and wall anchor trick.

Hey Fred...i think perhaps a combination of your method with the quiksteel will fill the bill...and the hole is more like a 1/4" around...there is considerable rust on this tank and i am concerned that using an anchor bolt... as you describe it...would futher damage the area that is already compromised...the main deal is just to plug this well enough that it stops leaking and then i will just sell the car... to really repair it right is prohibitively expensive.

[donebysunday]

Hey Fred...i think perhaps a combination of your method with the quiksteel will fill the bill...and the hole is more like a 1/4" around...there is considerable rust on this tank and i am concerned that using an anchor bolt... as you describe it...would futher damage the area that is already compromised...the main deal is just to plug this well enough that it stops leaking and then i will just sell the car... to really repair it right is prohibitively expensive.

Yes JB Weld is fine with oil but with gasohol E 10 it will melt, have not tried it with real fuel ? Believe it or not super glue is resistant to gasohol. Maybe you can find a way to use this, bolts,gaskets or what ever ? Also on my 79 silver trans am I just used stuff from the auto parts store and never had a problem.

[TomB]

I've been repairing fuel tank leaks for years using simple fibre glass matting and resin, when I say years I mean I've done a few and the've been on for years, '94 Ford car and VW bus/camper.

Wire brush the tank, paint with resin, apply glass mat, apply more resin. I have the Ford with tank repaired 10 years ago, still Ok now. Why do a temp repair, make it permanent for a few $$



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