repairing fuel tank

[dsujen]

I have a portable red colored omc duratank that leaks fuel at the top of the black fitting for the fuel line connection. It has a hair line crack in it. All of the plastic weld epoxy products such as blue magic, j b weld, chem tex, ect say works on all plastics except polyester and polypropeleyne or poly ethelene. What kind of plastic is this part made of ? How can I repair it?

 

[MH Hawker]

You repair it by replacing it.

 

[metriccrescentwrench]

You repair it by replacing it.

Yep, replace that fitting. Don't mess around with band-aid fixes, especially when it pertains to leaking fuel.

 

[UncleWillie]

The tank is Cross Linked PolyEthylene. Nothing will stick to it.

It is a thermoplastic and will melt. Welding the plastic with heat is the only thing that will work.
Heat and fuel is a very bad combination. Save yourself the frustration and just replace the tank.

Instead of wasting 20 hour trying to fix the tank, Get a part time job and use the money to buy the new tank.
Same amount of hours used with much better results.

 

[airshot]

Thermoplastics cannot be repaired to original strength, once formed it loses strength when repaired....not good for fuel issues !!

 

[marine4003]

cut it in half and make a decorative planter for your porch.....
Sell it on ebay as a lighting bug holder....
fill it with pea gravel and now you have a skiff anchor....
but please dont try to fix it...BOOM!!