16-01-2019, 11:35 AM
I had a punctured float on another car; with the float out and standing on a paper towel the source of the leak soon became apparent; vigorous shaking got most of the petrol out, and then dropped it into a saucepan of hot water. The ensuing trail of bubbles confirmed the leak(s) - multiple in my case, the whole side of the float had stress cracks - and a thin skim of solder has sealed it (so far!).