Lighter was dropped and the gas reservoir leaks continuously
Gas leaks in a lighter most commonly come from one of two places: the refill port, where you charge the lighter, and the exit port, where the gas exits to be burned.
To confirm where the lighter is leaking, try immersing the refill port in some water. If the lighter is charged and you see bubbles, that's the source of the leak. If you don't see a leak there, try holding the top of the lighter briefly under water to see if it bubbles there. Because electronics may be present at the burn port of the lighter, you want to make this immersion as short as possible. You also want to let the lighter dry completely before attempting to light it again, so you don't accidentally short-circuit something. If you're really worried about shorting it out, you can dab a bit of a soapy solution on the burn port with a Q-Tip instead of immersing the whole lighter tip in water.
Imagine the refill port like a bicycle valve--when you push down to open it, gas can flow in (or out). When you release pressure, that port is supposed to close up again completely. If it is not closing correctly, you can try to look for a piece of something--a shard of plastic or metal, a tiny grain of sand--that is preventing it from closing. However, because this valve is pretty well protected, it's less likely to be the source of the gas leak than the burn port.
The burn port is opened and closed by a mechanical switch. Possibly, a little door flaps open or you push a lever. Each of these triggers opens the burn port, and letting go of the control is supposed to let it close again. If you dropped the lighter on its head, it's possible that the linkage controlling things may have gotten bent or even broken. In that case, the gas port may no longer be closing properly.
The bad news is that once you have diagnosed your gas leak, you don't have a great many repair options. It may be possible to repair a bent or disconnected control at the lighter head, but it is rarely cost-effective to do so unless you simply have to unbend or re-align existing parts. Repair of the refill port, because it likely requires replacement of the gas storage tank, is also usually not cost-effective.
May 08, 2011 |