What causes the throttle (regulator), to freeze? What should you do if your gas brain freezes? How to prevent the regulator from freezing?
Carburetor LPG systems are especially vulnerable during winter months. Vehicle owners are often frustrated by the problems caused by freezing the gas and not being able to start the vehicle during cold weather.
Notice: The regulator in carburetor systems is also known as the brain.
Why does the Gas Brain Freeze
The engine water flows through the regulator’s water channels, as you already know. LPG from the tank comes in liquid form at -40°C during the initial start-up. The engine coolant is circulated through the regulator’s channels. It heats the LPG liquid, evaporates it, and then sends it to a carburetor in a gaseous state. LPG begins to evaporate when the engine temperature is 40 degrees. The vehicle will then start to function properly.
LPG at -40°C will freeze the brain if the regulator is unable to heat the vehicle. The vehicle won’t be able start in this situation.
To prevent LPG freezing and problems like not starting the car in the morning, carburetor systems require that the ignition be switched off in gasoline. LPG will freeze in its brain if it isn’t turned off. You will experience the problem of the starter not turning on when you press the starter.
Inside the regulator is a diaphragm that separates gas from water. The regulator’s diaphragm separates gas and water. Over time, it wears out, becomes brittle, and eventually, it is lost. This is when gas and water combine. A strong gas smell is released when you open the radiator cap. The regulator is not circulated and the LPG from the tank at -40° freezes it.
Leakage, loose hose clamps or leakage in the hoses can all lead to insufficient or insufficient water flow. Insufficient water flow can cause the regulator to stop doing its job properly and lead to it freezing.
Lack of engine water, water leaking, cracked cylinder heads, and burnt gaskets prevent water from reaching the regulator. These conditions can also cause freezing problems for the brain.
The brain can freeze in carburetor systems when there are thermostat malfunctions or cancellations.
How to Prevent Brain Freeze
- Stations that are maintained regularly should sell high-quality LPG with a high ratio of propane.
- The vehicle must have at most a quarter tank of gas.
- You must stop the vehicle on petrol.
- It is important to check the vehicle’s water level regularly. If it is low, it should also be repaired.
- Antifreeze must be present within the vehicle’s coolant.
- Check the batteries, ignition system and spark plug settings.
- You should check the thermostat and cooling system.
- It is important to adjust the idle setting of your vehicle according to the winter months.
- The engine should face “South” when you park your vehicle. The engine will warm up from the morning sun by being parked this way.
Additionally, it is important to make sure that the tank is not full, especially in winter. You should also ensure that you only purchase LPG when you are absolutely necessary.
What to do if the Gas Brain is Frozen
- Get up in the morning and boil some water for the brain, hoses, and engine.
- Press the starter just before the brain starts to liquefy, and the vehicle will be started.
- After you finish working, don’t give the engine too much gas. Allow the engine to warm up for about 3-5 minutes, then slowly add gas.
- Avoid using lighters or other flammable materials to heat your car’s engine. You can also use a hair dryer if you have the chance.
Are Sequential Systems also susceptible to freezing?
Sequential systems operate differently to carburetor systems. Always start on petrol. When the engine heats up to 40 degrees, the regulator evaporates the gas and then the vehicle switches to LPG. This problem is not experienced by sequential systems.
