What Causes Water in the Engine?

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Here are the specific reasons for water entering the engine: 1. Damage to the cylinder liner sealing ring: The sealing ring at the lower part of the cylinder liner is designed to prevent the leakage of engine oil and coolant. However, under prolonged pressure, the sealing ring inevitably ages. If low-quality coolant is used, it can also cause corrosion, leading to leakage into the engine oil. 2. Damage to the cylinder head gasket: If the cylinder head gasket is damaged or aged, water from the coolant passages can flow into the oil passages, resulting in water entering the engine. 3. Damage to the oil cooler: If the pipes of the oil cooler are damaged, external water from the cooler can seep into the engine oil, causing water to enter the engine.