Engine Cooling System: 1F-2
General Description
Engine Cooling System Description
B649G11601005
• To cool the engine, engine oil is jet-sprayed to the combustion chamber area of the cylinder head where
temperature is the highest.
• Oil discharged from the oil pump is sent to the cylinder head cover through the cooling hoses located in the center
area of upper crankcase and enters the drilled passage in the cylinder head cover. Oil is then jet-sprayed from the
jet nozzle into the oil chamber on the upper area of combustion chamber. With oil splash guarded by the oil
chamber plate, jetted oil is guided to the cylinder head return port and returns to the oil pan through the oil return
pipe that is located externally on the engine.
I649G1160001-03
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