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MECHANICAL 01–10–19 01–10 Retarding valve timing • When the spool valve in the oil control valve (OCV) moves to the right according to the PCM signal, hydraulic pressure, from the oil pump, feeds into the valve timing retard passage and finally to the valve timing retard Maintaining intermediate valve timing • The spool valve in the oil control valve (OCV) is located near the middle of the valve timing advance and retard positions. Because of this, hydraulic pressures are maintained in both valve timing advance and retard End Of Sie ROTOR TO VALVE TIMING HOUSING OIL PAN VALVE TIMING VARIABLE VALVE TIMING ACTUATOR CAMSHAFT SPOOL VALVE OIL PUMP OIL CONTROL VALVE (OCV) PCM FROM VALVE TIMING HYDRAULIC PRESSURE FLOW E5U110ZT5033 OIL PUMP PCM TO VALVE TIMING TO VALVE TIMING OIL CONTROL VALVE (OCV) HYDRAULIC PRESSURE FLOW E5U110ZT5034 |