Need help with a plastic cracked fuel tank

[aron]

Can anyone help me out iv have a crack on my plastic fuel tank were my fuel filter goes in is there anyway I can repair this as all sealents iv use just fail due to the petrol 

[Phil1]

Without a plastic weld (HDPE), I think you'd need a new tank....

Edited April 24, 2024 by Phil1

[RideWithStyles]

cor

Edited May 14, 2024 by RideWithStyles

[husoi]

Depending on what tools you have access to you can do the welding yourself.

Sealant wont work. The nearest you would get is to use a mix of bicarbonate soda and Super Glue.

Loads of yt clips about it.

Keep in mind that it will always be a temporary solution.

Welding with a heat gun and some ABS will be the best you can get other than a new tank.

[Trooper74]

I’ve repaired 2 plastic tanks successfully using the following … wash tank out with hot soapy water … washing up liquid … attach a hose , garden hose , to the exhaust of a petrol car and use the fumes to dry the tank out …. Fill the crack with epoxy resin , 5 minute type .. if it falls in keep adding it until the crack is filled to be level with the surface … 72 hours in a warm cupboard …. It works …. 2 plastic tanks sorted Aprillia and Yamaha. …

[husoi]

You can use masking tape to stop the resin from running 

[Mississippi Bullfrog]

Don't do what a mate of mine did. He was told that glass resin would seal the holes so he mixed up a good quantity of resin, put a plug in the outlet and poured the resin into the tank. Then he swilled it round so it coated the inside of the tank and allowed it to set. He then re-assembled the bike, filled the tank with petrol (no leaks - hurrah) and tried to start it.

 

It wouldn't fire. 

 

We let him ponder this for a few days before reminding him that having swilled the resin round the inside of the tank he'd not also sealed the leak but also the fuel outlet. 

 

Once drilled out it worked fine.

[RideWithStyles]

fun

Edited May 14, 2024 by RideWithStyles