What is the reason for water leakage on both sides of the cylinder gasket after an engine overhaul?

1 Answers
VanBrayden
07/30/25 7:23am
Cylinder gasket leakage occurs because the engine operates at relatively high temperatures. Over time, the cylinder gasket hardens and loses elasticity, which naturally reduces its sealing performance. Immediate replacement: If the cylinder gasket shows signs of leakage, it must be replaced immediately; otherwise, it will affect the normal operation of the car engine. Engine composition: A car's engine is an integrated unit, consisting from top to bottom of the valve cover, cylinder head, cylinder block, and oil pan. There are three sealing gaskets between these four components. Cylinder gasket: The cylinder gasket is the sealing gasket between the cylinder head and the cylinder block. The cylinder head is part of the engine's combustion chamber, and during operation, the cylinder gasket must withstand extremely high temperatures and pressures. Additionally, high-temperature engine oil and coolant may come into contact with the cylinder gasket, which over time causes the gasket to lose elasticity and harden, thereby reducing its sealing performance.
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