Harbor Freight 6.5 hp . Gas tank issue

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Harbor Freight 6.5 hp . Gas tank issue

Post by jakubman1 » Mon Feb 20, 2017 7:20 am

Ok so i got this go kart started after sitting for 3 years. The gas tank leaks right at the seal where the nipple is on the gas tank. Its rotted but i cleaned the tank super good.

So i thought i could drill out the plastic nipple thats still there and tap the hole make a thread then put like some sort of fitting with a seal. What do you guys think? I know its a simple fix that requires just a little crafty.

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Re: Harbor Freight 6.5 hp . Gas tank issue

Post by MrJumps » Mon Feb 20, 2017 9:23 am

Yeah but its probably cheaper to buy a new tank. If you put a metal nipple back in it braze it with a torch.
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Re: Harbor Freight 6.5 hp . Gas tank issue

Post by Meatball » Mon Feb 20, 2017 11:50 am

Be very careful welding a gas tank. Only skilled individuals should attempt this deadly task. Even when flushed out, vapors still exist and are explosive. Pair that with the confines of a fuel tank and you have yourself a powerful bomb with shrapnel. Most welding shops wont even touch gas tanks. Buy a new/used one and save yourself the disfigurement.

People have died doing this, sometimes even people who have done it several times before. Only takes one miss step.
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Re: Harbor Freight 6.5 hp . Gas tank issue

Post by benji » Mon Feb 20, 2017 12:09 pm

This is true. Metal is porous at microscopic levels and holds onto gasoline in the tiny holes. Less gas/more air is a hotter explosion as we all know from tuning. I'd use jb weld or buy a new tank.

Or buy a junior dragster fuel tank. You can get cool racing-style parts for those 4t lawnmower/go-kart motors.

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Re: Harbor Freight 6.5 hp . Gas tank issue

Post by motormike » Mon Feb 20, 2017 6:19 pm

First off, Is the gas tank metal ?
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Re: Harbor Freight 6.5 hp . Gas tank issue

Post by benji » Mon Feb 20, 2017 9:54 pm

GOOD POINT. I didn't even think of that. Could be plastic.

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Re: Harbor Freight 6.5 hp . Gas tank issue

Post by jakubman1 » Mon Feb 20, 2017 10:29 pm

metAL

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Re: Harbor Freight 6.5 hp . Gas tank issue

Post by jakubman1 » Mon Feb 20, 2017 10:48 pm

mAYBE ill try some epoxy stuff and see what happens

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Re: Harbor Freight 6.5 hp . Gas tank issue

Post by motormike » Mon Feb 20, 2017 10:52 pm

I really can't say what to do until I see the what you're talking about. The "Predator" 6.5 is what I assume you have.
I have several friends with these..will try to get a look at one and get back to you.
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Re: Harbor Freight 6.5 hp . Gas tank issue

Post by jakubman1 » Tue Feb 21, 2017 9:39 am

Not the predator. Its is called the greyhound 6.5hp and its blue. I will post a pic when i get the tank back from dad.

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