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Garage smelled a bit too much of gasoline late last week; one visible pinhole which I'm hoping to braze but, coincidentally ,I'd been planning to re-line the tank anyway.

So-any late breaking POR15 tips such as what to plug the petcock fittings with? Gas cap on or a bigger version of aforementioned plug?

lrz wrote:So-any late breaking POR15 tips such as what to plug the petcock fittings with? Gas cap on or a bigger version of aforementioned plug?

Browse the plumbing section.

Something to consider, if you have one pinhole, most likely there are others coming soon. I'd do some judicious tapping with an awl in the same area and see if swiss cheese is lurking. The Por 15 is an option, but flawless preparation is a must or the results will be less than satisfactory. For the time, energy and dealing with nasty chemicals involved, I'd consider finding a good used tank for replacement.

I used small crutch tips, located in hardware stores, and hose clamps to block off the Petcock holes.

I used rubber corks bought at Lowe's when I did my tank in 2003

Tim Shepherd wrote:Something to consider, if you have one pinhole, most likely there are others coming soon. I'd do some judicious tapping with an awl in the same area and see if swiss cheese is lurking. The Por 15 is an option, but flawless preparation is a must or the results will be less than satisfactory. For the time, energy and dealing with nasty chemicals involved, I'd consider finding a good used tank for replacement.

The first tank I owned was sent by the painter to a radiator shop. They chemically cleaned it and either they or the painter soldered up the holes and lined the tank. I think it is right that there is usually some corrosion that you don't see at first.

Chuey

You would be as well finding a sealer which is resistant to ethanol, and probably toluene too.

I read that POR is not resistant to E10, but that was from the flat cap and straight 50 oil brigade on a Brit Classic Bike site so it may not be correct, but it is worth checking.

Thanks, gents.

As per their website, por15 is resistant to all fuels...

Like the drink the bottle, re-use the cork idea! Mostly, I'm wondering about reliably stopping the holes.

I expect it to be a bit of a hassle, but the kit is here so onward. Having removed decades of paint from several(read: too many) buildings throughout the years, my hope is that this project will be slightly less unpleasant.

I do wonder about disposing of the used material responsibly.

I did the POR15 2 years ago. Used an expanding plumbers plug (with the wing nut, maybe 2") for the filler hole while stipping and cleaning.

Used vinegar to remove the original liner and then inspected with a mirror and scrapped the last bit from the bottom seam with a bent piece of stiff wire with a sharpened tip.

The prosses wasn't too bad, nothing unpleasant about it, just a bit time consuming.

The left over liner can be left in a container to dry, it'll form a skin and you can bust that to allow air in to harden the rest.

It was interesting to see the stuff after it hardened in the container. Kind of flexible and tough.