vapor lock

Vapor lock / Vapor lock:
When the fuel line is mounted in a warm place, eg close to a warm part of the engine, vapor lock / vapor lock can occur in the line. This means that a petrol vapor bubble can form due to the heat from the pipe. This will partially or completely interrupt the fuel supply.
To prevent this, the fuel line should always be mounted at some distance from hot engine parts and should be insulated as well as possible. This is also prevented by maintaining sufficient pressure on the system. With a liquid system that is under pressure, the liquid will not boil at 100 degrees Celsius. Just think of the cooling system in the car. The coolant can also reach 120 degrees when under pressure without boiling. The coolant will not boil until the system is depressurized.