Reply To: Zenith 24T2

[davidbliss]

When I dropped the carb into boiling water I should have known what was going to happen. When a float has a pin hole in and has sunk with petrol in thats how I get rid of it by firstly unsoldering the pin hole that all floats have then just warming it a few times will soon empty the petrol, with a cool float I then solder the pin hole up. This is how I find any holes that can’t be seen, placing under in warm water and watch for bubbles, clean and before soldering the leak unsolder the the breather hole. solder the leaking hole and again cool and then solder the pinhole and test in warm water again. With some floats with the manufacturing process of drawn metal to cause stress cracking all over, would clean and tin all over, if done properly doesn’t cause any detrimental weight increase, a friend used to electro plate floats, I could see how a float would implode like Sidevalve mentions, in full sun things can get very hot indeed and one day left a jug with petrol in out in full sun, as I went to pick it up noticed the petrol was boiling away quite well and thats the same as air expands, thats how water gets into seemingly sealed parts like gearboxes, rain water cools and then is sucked into a part. If the carb had a bit of water in and the float had the smallest hole air would escape but if cooled water wouldn’t get drawn back in and would then implode.as not very structurally sound with pressure on the outside.