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Manky Monkey Motors > Technical Section > Bike Tech > HELP...(yes , I know AGAIN)
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Author Topic: HELP...(yes , I know AGAIN)  (Read 3290 times)
Firery Fred
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« on: July 03, 2014, 07:46:14 PM »
Petrol tank "sealed" , painted and fitted and NOW it decides to leak. Can't afford to get it repainted and it's weeping from where the tap boss ued to be ( tig welded). Can't put another seal on top , is there anything that could be used outside that wouldn't involve heat?. It's a sportster type tank and underneath so almost out of sight. I know it's not the right thing to do but I just can't lose another summer/year without a bike
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It's better to have a gun,(welding),and not need one than need a gun and not have one
kapri
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« Reply #1 on: July 03, 2014, 08:28:31 PM »
Old fashioned bar of soap ! Coal tar or something basic like that ,it will react with the fuel and expand to seal the leak.
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Olds
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« Reply #2 on: July 03, 2014, 08:36:56 PM »
Here is something I have done and it worked for me.
Remove and empty tank. Remove all paint around the leak and clean with thinners. Seal the filler cap ( rubber glove works well) and any vents.
Apply cyanoacrylate (super glue) to the leak area. Lower the air pressure in the tank and leave like this for a few minutes. This should pull the glue into any porous areas. Wipe off all excess and seal with a coat of epoxy glue.
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Getting older but no wiser! Just using bigger hammers.
The answer to most problems, fire and lots of it.
Manky Monkey
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« Reply #3 on: July 03, 2014, 09:40:34 PM »
How do you lower the air pressure Dave?
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BikerGran
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« Reply #4 on: July 03, 2014, 10:33:49 PM »
Suck it and see..............
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fifer
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« Reply #5 on: July 03, 2014, 10:42:16 PM »
Quote from: Manky Monkey on July 03, 2014, 09:40:34 PM

How do you lower the air pressure Dave?

Take it from the top and transfer it to the bottom ; it will then be lowered  Tongue Grin Grin
.
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Olds
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« Reply #6 on: July 04, 2014, 12:50:48 AM »
Quote from: Manky Monkey on July 03, 2014, 09:40:34 PM
How do you lower the air pressure Dave?
This is where I should say use a vacuum pump (or converted bicycle pump) attached to the fuel tap. What I should not say is "suck it and see"  Wink  Wink Cheesy
« Last Edit: July 04, 2014, 06:17:58 AM by Olds » Logged
Getting older but no wiser! Just using bigger hammers.
The answer to most problems, fire and lots of it.
Firery Fred
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« Reply #7 on: July 20, 2014, 07:33:52 AM »
Had petrol  in tank for a couple of days(on the bench)now and seems to be fixed Grin So THANK YOU to one and all
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It's better to have a gun,(welding),and not need one than need a gun and not have one
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