Remove the main oil pressure regulator as follows:
1. Remove the capscrew (1) and the retainer plug (2).
2. Remove the spring (3) and the regulator plunger (4).
NOTE: Carefully remove the capscrew (1). The pressure regulator spring (3) is under compression.
Remove the oil pump cover. Remove and discard the cover gasket.
Remove the 7/16-20 straight thread o-ring adapter from the oil pump cover.
Remove the high oil pressure relief valve as follows:
1. Use the light-duty puller kit, Part No. 3375784, or its equivalent to remove the retainer plug (1).
2. Remove the valve disc (2), the washer (3), and the pressure relief valve spring (4).
NOTE: Carefully remove the retainer plug (1). The pressure relief valve spring (4) is under compression.
Remove the driven gear from the shaft.
NOTE: Do not remove the driven gear shaft from the oil pump body. Refer to inspection procedures listed below.
Use lubricating oil pump gear puller, Part No. 3375082, to remove the oil pump main drive gear.
Remove the drive shaft and gear assembly from the oil pump body.
NOTE: Do not remove the drive gear from the shaft. Refer to the inspection procedures listed below.
