Engine Oil Pump Overhaul
  1. Measure the diameters of the No. 1 journals on the front balancer shaft and rear balancer shaft.
    Journal Diameter
    Front:
    Standard (New):
    19.938−19.950 mm (0.7850−0.7854 in.)
    Service Limit:
    19.92 mm (0.784 in.)
    Rear:
    Standard (New):
    23.938−23.950 mm (0.9424−0.9429 in.)
    Service Limit:
    23.92 mm (0.942 in.)

  1. Clean both balancer shaft No. 2 journals and bearing halves with a clean shop towel.
  1. Place one strip of plastigage across each No. 2 journal.
  1. Reinstall the bearings and upper balancer shaft holder, then torque the bolts.
    NOTE: Do not rotate the balancer shafts during inspection.

Front
Rear