NOTE: Refer to the Exploded View if needed during this procedure.
1.
Oil Pump Balancer Shaft End Play - Inspect
Zero the dial indicator against the end of the front balancer shaft, then push the front balancer shaft back and forth and read the end play.
Balancer Shaft End Play
Standard (New):
0.070-0.120 mm (0.00276-0.00472 in)
Service Limit:
0.135 mm (0.00531)
2.
Oil Pump Housing - Remove
Remove the oil pump housing.
3.
Oil Pump Balancer Shaft - Remove
1.
Remove the the baffle plate (A) and the upper balancer shaft holder (with bearings) (B).
2.
Remove the front balancer shaft (C) and the rear balancer shaft (D).
4.
Oil Pump Balancer Shaft - Inspect
NOTE: Do not rotate the balancer shafts during inspection.
1.
Clean both balancer shaft No. 1 and No. 2 journals and the bearing halves with a clean shop towel, then place both balancer shafts into the balancer shaft holder.
2.
Place one strip of plastigage across each No. 1 and No. 2 journal.
3.
Reinstall the bearings and the upper balancer shaft holder, then tighten the bolts.
4.
Remove the upper balancer shaft holder and the bearings again, and measure the widest part with the plastigage. If the balancer shaft No. 1 and No. 2 journals oil clearance is out-of-tolerance, install new bearings, and recheck. If it is still out-of-tolerance, replace the balancer shafts.
No. 1 Journal Oil Clearance:
Standard (New):
0.050?0.082 mm (0.00197?0.00323 in)
Service Limit:
0.100 mm (0.00394 in)
No. 2 Journal Oil Clearance:
Standard (New):
0.060?0.120 mm (0.00236?0.00472 in)
Service Limit:
0.150 mm (0.00591 in)
NOTE: Refer to the Exploded View if needed during this procedure.
1.
Oil Pump Balancer Shaft - Install
1.
Align the punch mark on the rear balancer shaft in the center of the two punch marks on the front balancer shaft, then install the balancer shafts on the lower balancer shaft holder.
2.
Apply new engine oil to the threads of the 8 mm bolts (A).
3.
Install the upper balancer shaft holder (B) with a new O-ring (C).
