Timing Gears Inspection - Toyota 1HD-FT Repair Manual

EG·32
ENGINE - ENGINE MECHANICAL
EG
~.;<-_SST
(c) Using SST. remove the drive gear.
SST 09950-50010 (09951-05010.09952-05010.
09953-05010.09954-050201
14. REMOVE CRANKSHAFT TIMING GEAR
Using SST. remove the timing gear.
SST 09950-40010 (09951 -04010.09952-04010.
09953-04010.09953-04020.09954-04010.
09955-04060)
--
TIMING GEARS INSPECTION
1. INSPECT IDLER GEAR
(a) Using a cylinder gauge, measure the inside diameter
of the idler gear.
Idler gear inside diamet.r:
45.000 - 45.025
mm
(1.7717 - 1.7726
in.)
(b) Using a micrometer. measure the diameter of the idler
gear shaft.
Idler g8.' shaft diamat.r:
44.950 - 44.975 mm (1.7697 - 1.7707 in.)
(c) Subtract the idler gear shaft diameter measurement
from the idler
g8ar
inside diameter measurement.
Standard oil cle.ranca:
0.025 - 0.075 mm (0.0010 - 0.0030 in.)
Maximum oil cle.ranca:
0.20 mm (O.DOJ9 in.)
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.