Best way to repair plastic gas tank on snow blower

[1foxracing]

If you have a small engine repair place around I would stop in and ask about a used one. Most of those places around me have huge piles of old OPE out back.
Might try one of those plastic welding kits.
http://www.amazon.com/Plastic-Welding-Ki...lastic+weld+kit

 

[mlatour]

Thinking the OP's gas tank is a costly 'molded' external engine cover / internal tank assembly
and not a simple bolt-on external tank to replace.

 

[JTK]

Originally Posted By: mlatour
Thinking the OP's gas tank is a costly 'molded' external engine cover / internal tank assembly
and not a simple bolt-on external tank to replace.


That, or a tank for a Snapper single stage snowthrower, which like said, is going to be a bit different than what you'd see on a Tecumseh snow king engine, etc.

My experience with trying to stop a plastic gas tank leak was on a Briggs Quantum on an old Toro mulcher. It was a seam leak and there was too much vibration and movement for any sealant to hold long term.

I went to the Toro dealer and got a new tank. 25yrs later, that mower is still in service.

 

[bubbatime]

Perhaps if the OP posted his model numbers, the forum could respond and offer options for a new tank. Might be some options out there he hasn't thought of. Why repair a tank for $20 if there is a replacement tank available for $20?

 

[lars11]

This solution is the only reliable solution given the crack is on a accessible, fairly plane spot:
Originally Posted By: Cujet
The only viable repair I've ever seen to a true plastic gas tank is to cut out the crack. Fabricate 2 round metal plates that screw together, and install with PRC 1422 sealant or a cork gasket.

In much the same way as a fuel tank sending unit fits.

 

[shinyWheels]

Yes I'd try JB weld.

 

[yeehaw1960]

A picture would REALLY help. Maybe I have one to send you.

 

[bmwpowere36m3]

Most plastic fuel tanks are made from polyethylene (PE) and it's a very difficult plastic to "adhere" to. Most tanks are formed in a single piece and if they have any "joints" I'd assume they were fused together (heat, ultrasonic, etc..).

Some of those epoxies might work depending on the leak… but I wouldn't get my hopes up. Best bet, find a replacement tank in good condition.

 

[super20dan]

i used to replace the tanks too but i found sometimes seal all really does work

 

[JimPghPA]

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