What impact will a faulty oil cooler have on the engine?

[OAlexa]

If the oil cooler is damaged, it will cause the oil temperature to become too high, which will affect the lubrication and normal operation of the engine. Oil Cooler: Common failures in water-cooled oil coolers include copper pipe rupture, cracks in the front/rear cover, damaged sealing gaskets, and internal blockage of copper pipes. Copper pipe rupture and cracks in the front and rear covers are often caused by operators failing to drain the cooling water inside the diesel engine during winter. After component damage: During the operation of the diesel engine, oil will enter the water cooler, and cooling water will mix with the oil in the oil pan. If the oil pressure exceeds the cooling water pressure while the diesel engine is running, oil will leak through the holes in the core into the cooling water and circulate into the water cooler.