At what water level will the engine get flooded?
2 Answers
Water reaching the air filter position will cause the engine to get flooded. The function of an engine is to convert the thermal energy of gasoline or diesel into mechanical energy by burning the fuel in a sealed cylinder, expanding the gas, and pushing the piston to perform work. Engine maintenance items include: 1. Regularly change the engine oil and oil filter; 2. Maintain good ventilation in the crankcase; 3. Regularly clean the crankcase; 4. Regularly clean the fuel system; 5. Regularly maintain the radiator; 6. Maintain and clean the fuel system. Types of engines: 1. According to the fuel used, engines are classified into gasoline engines and diesel engines; 2. According to the stroke, they are divided into four-stroke internal combustion engines and two-stroke internal combustion engines; 3. According to the cooling method, they are divided into water-cooled engines and air-cooled engines; 4. According to the number of cylinders, they are divided into single-cylinder engines and double-cylinder engines; 5. According to the intake system, they are divided into naturally aspirated engines, turbocharged engines, and supercharged engines.
I've driven quite a few off-road vehicles and understand that engine flooding during water submersion primarily depends on vehicle design. For regular urban SUVs, the air intake is usually located below the hood, and water may enter when the water level reaches half the tire height. True off-road vehicles often have high-mounted air intakes, allowing them to handle water levels up to waist height without issues. The key factor is the position of the air filter. If water is sucked through the intake into the engine cylinders, it can cause 'hydrolock,' where the pistons can't move, leading to immediate damage. Remember not to attempt crossing deep water during heavy rains. If water does enter the engine, never try to start it, as repairs could cost thousands. You can check the safe water level range in the manual or measure the air intake height with a ruler as a reference point when dry. My personal advice is to keep a waterproof bag in your car, stay calm in emergencies, prioritize escape and safety first, and then call for a tow truck.
