Remove the engine front cover. Refer to Engine Front Cover with Oil Pump Replacement.
Insert the screw driver between the oil pump slide spring windings (2).
Compress the oil pump slide spring with a screw driver and remove the oil pump slide spring in conjunction with the oil pump slide spring pin.
Keep the oil pump components in order to aid in installation.
Clean the oil galleries with solvent and compressed air. Blow compressed air from bore (2) to bore (1).
Oil pump slide spring pin, oil pump slide spring and slide seal and slide seal spring can be ordered as single parts. All other oil pump components can only be ordered as a replacement kit.
Ensure the mark (9) of the oil pump vane rotor (4) points to the oil pump cover.
Ensure the flats (3) on the oil pump vanes (2) point to the oil pump vane rotor.
Install the 7 oil pump vanes (2).
Install the oil pump slide spring pin (1) in conjunction with the oil pump slide spring (4). Use a screwdriver to compress the oil pump slide spring. The flat side of oil pump slide spring pin must face upwards.
Lubricate the oil pump vanes, the oil pump vane rotor, the oil pump slide spring and the chambers (3) with engine oil.
Inspect the oil pump slide spring mechanism for proper function.
Measure the oil pump axial and radial clearances and compare with the specified values. Refer to Engine Front Cover and Oil Pump Cleaning and Inspection.
Install the crankshaft balancer (1) and rotate in shown direction (2) in order to inspect the function of the oil pump mechanism. Crankshaft balancer should rotate easily.
Remove the timing chain and replace the engine front cover gasket. Refer to Camshaft Timing Chain Replacement.
Install the engine front cover. Refer to Engine Front Cover with Oil Pump Replacement.
Measure the oil pressure and compare with the specified values. Refer to Oil Pressure Diagnosis and Testing.