Why Does Water Enter a Car Engine?

1 Answers
DelNicole
07/30/25 12:24am
There are several reasons why water may enter a car engine: 1. Damaged 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, aging of the sealing ring is inevitable. If the coolant is of poor quality, it may also have a corrosive effect, leading to leakage into the engine oil. 2. Damaged cylinder head gasket: The engine cylinder head gasket serves to seal the water passages and oil channels between the cylinders. If the cylinder head gasket becomes damaged or aged, water from the water passages may flow into the oil channels, causing water to enter the engine. 3. Damaged oil cooler: If the oil cooler is damaged and its pipes break, external water from the cooler may seep inside, resulting in water entering the engine.
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