How to Deal with Water in the Diesel Engine Intake Valve?
2 Answers
Return the fuel pump valve stem to the shutdown position, then turn the key to start and use the starter to rotate the engine for drainage before officially starting it. When the diesel engine is shut down, the valves are in a closed state. If water enters, there is a possibility it may enter the cylinder. This can be resolved by reinstalling the end cover.
Last time I drove a diesel car through deep water during a heavy rainstorm, I suddenly noticed abnormal engine noises – it turned out water had entered the intake valve. The first thing I did was pull over to a safe spot and turn off the engine immediately. Never attempt to restart the engine in this situation, as water entering the cylinders could bend pistons or connecting rods, potentially causing total engine failure. I called a tow truck to take it to a professional repair shop where the mechanic disassembled the intake system to drain the water and inspected the valve seals. Fortunately, early detection meant only an air filter replacement was needed. Prevention is equally important – avoid deep puddles during rainy conditions, maintain slow speeds when wading through water, and consider installing a snorkel to raise the intake height if possible. These small habits can prevent major headaches. While diesel engines don't hydrolock as easily as gasoline engines, improper handling leads to more severe consequences. Always remember: safety comes first.
