What needs to be repaired when a diesel engine overheats?

[LeNathan]

If the cylinder head gasket is damaged, directly replace the cylinder head gasket and resurface the cylinder head; replace the engine oil and thermostat. Below is an introduction to the related content: 1. Engine overheating: Thermal expansion and contraction cause the cylinder block space to shrink, leading to cylinder block wear, piston ring breakage. If the piston seizes and causes cylinder seizure, it will result in piston connecting rod deformation and throttle damage. 2. Cylinder head gasket damage: Causes damage to the cylinder head gasket (the gasket between the engine block and cylinder head), resulting in mixing of coolant and oil passages, thereby damaging the radiator and catalytic converter, and potentially causing cylinder head deformation. It may also damage the thermostat valve and temperature sensor.