How to Deal with Water in Diesel Engine Intake Valves?
3 Answers
If water enters the cylinder of a diesel engine, do not start it under any circumstances. Starting the engine in this condition could lead to cylinder head deformation or connecting rod and crankshaft breakage, resulting in engine failure. To address this issue, remove the fuel injectors from each cylinder and then use the starter motor to expel the water from the cylinders. Next, replace the air filter. If water enters the engine oil, the problem is relatively minor since oil is denser than water, and the oil pump's intake tube is positioned at the lowest point. The water in the oil will be evaporated by the engine's heat. Additionally, replace the diesel fuel if it contains water, as this can cause the engine to emit white smoke and experience poor acceleration. Taking these steps will ensure trouble-free operation during subsequent driving.
This is quite common, I can explain when I have time. If water gets into the diesel engine's intake valve, don't act recklessly. First, immediately stop the vehicle and turn off the engine. Do not attempt to start it, as water can block the piston, potentially bending the connecting rod or cracking the cylinder block, which would be costly to repair. Quickly get out and check the air filter. If it's soaked, take it out to dry or replace it. If there's water in the intake pipe, use a cloth to absorb it. Don't rush to start the engine afterward; it's best to tow it to a repair shop and have a professional technician use a pressure gauge to check the cylinder pressure and inspect for internal damage. Always be cautious when driving, avoid rushing through water, and keep the intake system dry to prevent major issues.
Water entering the intake valve is no small matter, and I recommend prioritizing safety. It's essential to stop the engine and never attempt to start it, as this could cause hydrostatic lock. After exiting the vehicle, check the intake piping and air filter for any water accumulation, and ensure they are thoroughly cleaned before proceeding. Avoid attempting to start the engine yourself—contact a tow truck to take the vehicle directly to a repair shop. A technician will inspect the engine internals, such as the pistons and cylinder walls, for potential damage. Safety comes first—don’t take risks to save trouble. Additionally, before driving in rainy seasons or wet regions, inspect the intake port seals to prevent similar issues, saving both money and peace of mind.
