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By Les H
#13496
Hi Bullet train, I reckon these float bowls were probably always like this from new but after the two week lay off they simply stuck down and flooded the carb which is when you noticed them like this. I don't think that having them puckered up like would cause the float to flood as they are as you say still air tight and would still be quite buoyant. When manufactured (They are hand soldered) I reckon the main shape was soldered and then quenched, allowing water to get inside and turn to steam. Then the small central holes sealed over trapping the steam. If you think about it this is why they have the two tiny central holes as if they were heated up to solder and then cooled they would suck in the solder and leak or, as has happened with yours, suck in and pucker the sides. As they were cooled again the steam condensed and sucked in the bowls. OR, the two tiny holes were soldered closed first by mistake and the job completed, which as already described is going to cause the probolem............ Either that or they are made from such thin brass that normal atmosheric pressure on a hot high pressure day has pushed them in, but they should return on a cold low pressure day so if they don't I would stick with the first theory. I also think you could reinflate them by boiling them in a saucepan of water, then quickly drill a tiny hole in each of the floats to let in air before they cooL. You might have to do the heating with a hot air gun to be able to work on them but don't overheat them as the solder will melt. Once back to shape, simply tin over the tiny drill hole to re-seal them after they've cooled.

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