Fuel tank leak

Ironstrike · Mar 20, 2019

Morning!

The fuel tank on my 1988 90 has sprung a leak. I cant see where from exactly but I imagine it is from the seam. Is it repairable? If so does anybody have any tips?

Thanks

saxavordian · Mar 20, 2019

Petrol or Diesel. How much of a leak can be debatable but stick a small tupperware box underneath and refill.

tottot · Mar 20, 2019

Check the seals on the top of the tank for the fuel sender and feed.

Gmacz · Mar 20, 2019

Out with the old and in with the new if it is the seam.

Ironstrike · Mar 20, 2019

Thanks for replies, its a diesel, not from sender or lines, almost definitely seam so looks like a new tank then, bugger!

mojo247 · Mar 20, 2019

as per @Gmacz never worth repairing for the cost of a new one!

Colthebrummie · Mar 20, 2019

I plugged a leaking petrol tank with David's Isopon years ago. It was meant as a temporary fix until I could afford a new tank but it lasted for a couple of years until I eventually scrapped it due to gearbox rot almost everywhere.

Col

Colthebrummie · Mar 20, 2019

I don't know why I typed gearbox in that last post, I was thinking of two different things at the same time, very dangerous thing for a man to do.

Col

tottot · Mar 20, 2019

You are right on that one Col.

Ironstrike · Mar 20, 2019

Colthebrummie said:
I plugged a leaking petrol tank with David's Isopon years ago. It was meant as a temporary fix until I could afford a new tank but it lasted for a couple of years until I eventually scrapped it due to gearbox rot almost everywhere.

Col

I might have to go down that route for a while, they are £100! I could get away with a temporary fix on a tank but not on tyres.

Gmacz · Mar 20, 2019

If isopon rots your gearbox, I think I would just spend the £100 for a new tank.

Problem with the seam is finding the hole and diesel sticks around while petrol evaporates. The sealant will have trouble sticking.

Ironstrike · Mar 20, 2019

Gmacz said:
If isopon rots your gearbox, I think I would just spend the £100 for a new tank.
Problem with the seam is finding the hole and diesel sticks around while petrol evaporates. The sealant will have trouble sticking.

Yeah, I did think of that, I thought I could clean off around the seam with a blow torch.... then I remembered setting fire to my motorbike and my garage trying something stupid like that before so I just bit the bullet and ordered one

Fuel tank leak

Ironstrike

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saxavordian

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tottot

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Gmacz

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Ironstrike

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Colthebrummie

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Ironstrike

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