How to line, coat, or patch a plastic gas tank on '79 dirt bike with cracks due to many years of sun exposur
Would like it to look nice, but making it gas-tight is most important.The
plastic cap is also cracked. Any ideas?
You may have to find another cap. There is a product called Red
Coat( spelling could be different), that will coat the inside of the tank
and fix small holes. This stuff is strong, when put on a paper towel and
let dry it is very strong and flexible. I found this product and ones
similar at radiator shops, or they will probably be able to steer you in
the right direction.
Try heating up a butter knife and dragging some of the
heated-up plastic to cover the cracks. Fill tank with water first.
Fiber glass, or plasticdip (which you can buy at lowes, or
anything like that). Or you could just replace it.
Yeah if its leaking gas then get another one
get new fuel tank.
Try POR-15
you can visit the website for info and products.
If the plastic is as bad as explained I would think it has
ended it is useful life.
Most plastic becomes very brittle from sun exposure and I doubt it would
accept any coating that would not leak
Maybe someone else knows a way
Your local cycle shop should have a liquid liner that should
withstand gasoline. That or e-bay for a used one, or check a cycle
salvage yard. Also don't forget about hot rod shops, they may have a real
good product
Would really recommend that you just replace it.
With as much jostling as a dirt bike gets, it may be hard for a repair of
any size to stick.
Replacing on most bikes is just two or three connections to loosen and
refasten.
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