A torch spitting fire or "flaring up" typically happens when the fuel-to-oxygen ratio is disrupted, or when liquid fuel hits the burner instead of vaporized gas.
Step-by-Step Guide to Bleeding a Torch Lighter
Here's a step-by-step guide to fixing a non-igniting torch:
Hissing Sound Without a Flame
When pressing the ignition button, you should hear a small hissing sound as the butane is released. If you hear nothing, your lighter is completely out of fuel. If you hear hissing but no flame, it might indicate a clogged nozzle or that your butane is nearly depleted.
To stop a torch from leaking gas, you must first identify where the leak is coming from. Always troubleshoot in a well-ventilated, spark-free area, and never test for leaks with an open flame.
Why Is My Butane Torch Leaking from the Bottom? A leaking torch is often caused by: Loose O-rings: Tighten or replace the rubber O-ring at the fuel valve. Overfilled Tank: Drain excess butane by pressing the refill valve with a screwdriver.
Inside the cartridge / cylinder, the gas is stored under high pressure in liquid form. If the torch is flipped upside down or held at a steep angle, the liquid gas travels through the system without fully evaporating. Once it ignites, it produces excessively large and uncontrollable flames.
To unclog a butane torch, you need to clear debris from the fuel jet and purge trapped air from the tank.
Loose Wiring and Connections
Loose wiring inside the LED lamp or electrical socket can lead to small electrical arcs, generating a clicking or buzzing sound. This issue can also create a fire hazard, so it's important to check and secure all electrical connections.
Burping (or "bleeding") a torch lighter releases trapped air and excess pressure from the fuel tank. This prevents sputtering and ensures a full fill.
To unstick a propane valve that won't turn, start by applying a penetrating lubricant (like WD-40) to the stem and threads. Let it soak, then try leaning into the handwheel with steady pressure. Never force the valve with a wrench, as this can break it and cause a gas leak.
If your torch lighter clicks but won't spark, the issue is usually a misaligned ignition wire, debris blocking the spark path, or dead internal components.
Backfire: The same thing can happen with high oxygen pressure and low fuel gas pressure if a backfire occurs, which is usually caused by holding the cutting torch too close to your work. This causes gas starvation of the cutting flame and results in the flame being sucked into the torch head.
The standard O-ring size for a soft-nose P.O.L. propane fitting is 3/8" ID (Inside Diameter) by 9/16" OD (Outside Diameter) with a thickness of 3/16". This translates to a standard #110 O-ring size.
The lifespan of a propane tank depends on whether you are asking about the amount of fuel inside or the physical age of the tank itself.
Your torch is spitting out raw butane instead of burning it cleanly for three primary reasons.
No, you should not shake the butane can before filling a lighter. Shaking the can agitates the liquid and mixes it with propellant/air, which can force air pockets and bubbles into your lighter's fuel tank. This trapped air prevents the liquid butane from filling the tank properly, causing sputtering, weak flames, and inconsistent ignition.
To stop a torch from leaking gas, you must first identify where the leak is coming from. Always troubleshoot in a well-ventilated, spark-free area, and never test for leaks with an open flame.