Plastic gas tank

Replace it.

I agree. You might check with manufacturer. Repair is not a good idea. I had one on a Lawnboy replaced after they extended warranty after discovering defect.

You heard right. Buy a new tank.

That HDP plastic has VERY low surface energy. It will behave as if it is impregnated with oil. If you find someting that will adhere to a surface covered with oil, you can glue it. Otherwise, replacement is mandatory.

And its a 2 stroke so its totaly oiled up.

Aside from replacement as the best option---I repaired a plastic lawn mower tank that was cracked and leaking by using epoxy. The epoxy that I used was the solid ribbon type and you mixed two colors together. It's been two seasons and the repair has held up. MLD

I trust you store this machine outside and away from all buildings...

Why? Epoxy glues are labeled specifically for use as sealants for plastic gasoline containers. For example:

...

The spec sheet mentions gas resistance and use on gas tanks but I missed the reference to "plastic gasoline containers".

My vote goes with the rest of the guys who said "replace", repair is possible but HDPE is nearly impossible to adhere to.

cheers Bob

And Protective Coating (manufacturer of the pcepoxy brand) makes great products even though they are an evil family owned business.

Knowledgeable people answer the phone and they are very interested in making quality products.

Even if the repair works, there may be another part of the tank getting ready to fail. Plastics are very valuable engineering materials when properly used but often designers do not test their products thoroughly.

There's the problem--musta' been that knock-off Deer instead of genuine green Deere... :)

--

Right there on their site it states that their product will not bond to Polyethylene. Did you not notice?

TDD

I came across this:

Hi, If replacement tank is not available I'd try that kinda repair.

Get Mighty Putty on TV. It fixes anything. That big fat Billy Mays said so.

He's not fat, he's just full of...... never mind.

TDD

Why?? If the repair fails the gas leak is obvious--how do you think I discovered the leak in the first place. Add one more year to the repair as I'm now completing the third season since I repaired the tank. Getting a replacement tank wasn't a good option, no having to get rid of the mower as a result Too bad you didn't have better advice to offer instead of looking down your nose. MLD

Laconic, maybe, but he is right. After I had to replace my Lawnboy tank, I never store it full anymore. They had recommended that when they gave out their extended warranty.