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post #1 of 8 (permalink) Old 06-08-2009, 04:05 AM Thread Starter
 
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Small gas leak

Hello, i have just discovered a small gas leak from the area by the left mounting bracket. It is possibly from where the bracket is welded to the tank. It is just a small leak but i need to fix it before the holidays.
Is there any liquid additive to help stop tiny leaks ?
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post #2 of 8 (permalink) Old 06-08-2009, 06:08 AM
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If it stops tiny leaks, would it do the same to the screen leading to the petcock???
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post #3 of 8 (permalink) Old 06-08-2009, 09:22 AM
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*Is* there such a thing as a small gas leak?

There may be a remove the tank treatment that might work, but after restoring a bike which had been treated with an internal leak stop, I must say it can mess up the filter and the petcock and the carbs something bad.

I think a lot of people get the bracket leak - do a search for it here. I think the main issue was having the fix pop open again when the tank was remounted.

One product that works well for gas leaks in general is marine epoxy putty. JB Weld makes some as do other companies. It's like silly putty - you knead it together to mix the chemicals and put it on the thing to be expoxied. It cures in minutes. At the very least it's a good temporary fix. I used some on the "seam" of my tank, where the top piece meets the bottom, just down under the petcock.

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post #4 of 8 (permalink) Old 06-08-2009, 10:01 AM
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Quote:
Originally Posted by skalding View Post
One product that works well for gas leaks in general is marine epoxy putty. JB Weld makes some as do other companies. It's like silly putty - you knead it together to mix the chemicals and put it on the thing to be expoxied. It cures in minutes. At the very least it's a good temporary fix. I used some on the "seam" of my tank, where the top piece meets the bottom, just down under the petcock.
This is what I'd do.
In fact, I keep a tube of JB weld (safe for gas type) in my fork bag, incase I need it while on the road. Works good for rad leaks too!!


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post #5 of 8 (permalink) Old 06-08-2009, 10:31 AM
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Had the same problem. JB Weld sealed the leak, but when I remounted the tank, the pressure on the mounting bracket popped it loose. Had it welded. Once the tank is empty and safe to weld on:

1. Measure the distance between the mounting tabs.

2. Cut small notches on the bracket near where it meets the tank to allow the bending in 3.

3. Heat the bracket and bend it back. This allows the welding tip to get to the seam between the tank and bracket.

4. Prep the area for welding (wire brush, etc.)

5. Lay a good bead all around the seam.

6. Heat the bracket and bend back to original position.

7. Weld the notches shut that were cut in 2.

8. Paint

I'm keepin' all the left over parts. I'm gonna use 'em to build another bike!
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post #6 of 8 (permalink) Old 06-08-2009, 11:53 AM
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Quote:
Originally Posted by flitecontrol View Post
Had the same problem. JB Weld sealed the leak, but when I remounted the tank, the pressure on the mounting bracket popped it loose.
I would've remounted the tank when the JB Weld was still somewhat pliable.
This could be a problem if the JB Weld would contact something it shouldn't, but a piece of aluminum foil or plastic wrap put over that area would eliminate it from sticking where it shouldn't.

But, welding is a better (more permanent) fix, as it would be possible the JB Weld could still be popped loose once the tank was removed again.


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post #7 of 8 (permalink) Old 06-08-2009, 01:12 PM
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My son had a 67 Mustang that had some leaks in it's Gas Tank.
It was some rust holes. Anyway he was over at his girl-friends house at the time it started.
Her Dad went and grabbed a bar of soap and cut off little pieces and pushed them up around where the leaks were. They stopped.
He drove it around for the next 2 weeks waiting for the new gas tank to come in.
It never did leak again. I don't know what it was in the soap but it fixed it.
Don't know how long it would of lasted but I know it did for 2 weeks at least.

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post #8 of 8 (permalink) Old 06-08-2009, 01:36 PM
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Quote:
Originally Posted by Alatri View Post
If it stops tiny leaks, would it do the same to the screen leading to the petcock???
X2!

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