Inspection Of Timing Gears; Inspect Idler Gear; Inspect Injection Pump Drive Gear Bearing; Replace Injection Pump Drive Gear Bearing - Toyota 1PZ Repair Manual

EM-46
ENGINE MECHANICAL

INSPECTION OF TIMING GEARS

1.

INSPECT IDLER GEAR

(a) Using a cylinder gauge, measure the inside diameter
of the idler gear.
Idler gear inside diameter: 45.000-45.025 mm
(b) Using a micrometer, measure the diameter of the idler
gear shaft.
Idler gear shaft diameter: 44.950-44.975 mm
(c) Subtract the idler gear shaft diameter measurement
from the idler gear inside diameter measurement.
Standard oil clearance:
Maximum oil clearance:
If the clearance is greater than maximum, replace the gear
and shaft.
2.

INSPECT INJECTION PUMP DRIVE GEAR BEARING

Check that bearing is not rough or worn.
3. IF NECESSARY, REPLACE INJECTION PUMP DRIVE
GEAR BEARING
A. Remove bearing
Using SST, remove the bearing.
SST 09950-20017
Timing Gears
(1.7717-1.7726 in.)
(1.7697-1.7707 in.)
0.025-0.075 mm
(0.0010-0.0030 in.)
0.20 mm (0.0079 in.)