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  #1  
Old 05-31-2007, 01:02 AM
P&C Lawn Care P&C Lawn Care is offline
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Plastic Gas tank repair

With all the recent rain here and some new res accounts I broke out the old Lawboy S21ZSR because it is light weight and can side discharge. Problem is it has a pin hole leak in the gas tank and it costs $65 for a new tank. I can get a new tank but thought I'd try a cheaper route first. Has anyone had any luck using a sealant or plastic weld on a plastic gas tank? I have thought about getting an aftermarket tank like what was on the heavy duty LB's.
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Old 05-31-2007, 01:28 AM
jt5019 jt5019 is offline
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I recently just tried plastic weld on a string trimmer gas tank that had a hairline crack. So far it is holding up fine. I got the plastic weld at walmart in the paint supply section.
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  #3  
Old 05-31-2007, 06:49 AM
lawnboy dan lawnboy dan is offline
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forget it on a lawn boy -there is nothing that can patch a lawn boy gas tank. there is always some for little $ on ebay
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  #4  
Old 05-31-2007, 05:06 PM
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ed2hess ed2hess is online now
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UB Weld epoxy will do the job I did our big Scag...used a little piece of fiber glass cloth and it held just fine.
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  #5  
Old 05-31-2007, 06:10 PM
regl regl is offline
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I used J B Weld on a Stihl trimmer gas tank and it's holding fine so far.
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  #6  
Old 05-31-2007, 07:20 PM
lawnboy dan lawnboy dan is offline
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the formula of the plastic on the lawnboys gas tanks is different and NOTHING will stick to it! go ahead and try !
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  #7  
Old 05-31-2007, 07:46 PM
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ffemt1271 ffemt1271 is offline
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get you a self tapping metal roofing screw, one with a washer on it. that should plug the hole just fine.
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  #8  
Old 05-31-2007, 07:49 PM
Maitland Man Maitland Man is offline
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Seal-All

Seal-all has worked on many small plastic gas tanks for us.

Dennis
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  #9  
Old 05-31-2007, 08:10 PM
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muddstopper muddstopper is offline
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With a pinhole, I think I would go for the sheet metal screw and rubber washer. What i need to know is what will seal up one of those black plastic fuel tanks. I recently ran over a stump and busted the plastic tank in one corner. More like a gash. Anyways, a new tank is right at $400, which I have already bought and replaced, but would like to fix the old tank just for a spare. For the life of me i cant figure out why all the tractor manufacturers started mounting the fuel tank below the steps on a tractor. It makes me hesitate even bushogging an over grown field. I keep getting visions of a stick or stob running thru my new fuel tank. And the skid plates are a real joke.
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  #10  
Old 06-01-2007, 10:15 PM
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ke5hbd ke5hbd is offline
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The JB Weld product you are refering to regl and ed2hess is this the clear two part apoxy that has two cylinders of product and as you push the plunger through the applicator it mixes?

My father has a Crafstman push mower that was about two months old and the tank started leaking.
Well Sears replaced the first tank and you guessed it right the second one is now leaking.

Never would I have ever gotten away from metal and gone to plastic for a fuel tank.

Damon
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