Section 7 - Lubricating Oil System - Group 07 Lubricating Oil Pump (7-08) M11 Page 7-17 Measure the outside diameter of the oil pump gear shafts. Gear Shafts O.D. mm in 18.669 MIN 0.7350 18.681 MAX 0.7355 If the gear shafts are worn beyond the minimum limit specified, the shaft(s) must be replaced. Measure the inside diameter of the drive gear bore. Drive Gear Bore I.D. mm in 18.600 MIN 0.7323 18.625 MAX 0.7333 If the drive gear bore is worn beyond the maximum limit, the drive gear must be replaced. Assembly Use clean 15W-40 oil to lubricate the internal drive gear and shaft. Install the drive gear and shaft in the oil pump body.
Install the oil pump body in an arbor press with the front of the body facing up. Make sure the flat surface of the pump body, and not the dowel pins, is resting against the press table. Make sure the end of the drive shaft is supported. Install the drive gear on the shaft with the part number facing up. Press the gear on the shaft far enough to leave the speci- fied clearance between the gear and pump body.