Rotor shaft end play
Place a dial gauge at the rotor shaft end in the axial direction to
measure the end play.
Standard: 0.044 - 0.083 mm (0.0017 - 0.0033 in)
Turbine wheel
+Check that there is no oil adhesion.
+Check that there is no carbon accumulation.
+Check that blades of the turbine wheel are not bent or bro-
ken.
+Check that the turbine wheel does not interfere with the tur-
bine housing.
Compressor wheel
+Check that there is no oil adhesion inside the air inlet.
+Check that the compressor wheel does not interfere with the
compressor housing.
+Check that the wheel is not bent or broken.
VNT control actuator
+Connect the handy pump to the actuator, and check that the
rod strokes smoothly in compliance with the following pres-
sure.
+First, apply the inspection negative pressure of about þ66.7
kPa (þ667 mbar, þ500 mmHg, 19.69 inHg), and then mea-
sure the values while reducing the negative pressure to 0.
Standard (Vacuum pressure/rod stroke amount):
þ46.9 1.3 kPa (þ469 13 mbar, þ352 10 mmHg,
þ13.86 0.39 inHg)/0.2 mm (0.008 in)
þ30.8 0.7 kPa (þ308 7 mbar, þ231 5 mmHg,
þ9.09 0.20 inHg)/5.0 mm (0.197 in)
Approximately þ22.7 kPa (þ227 mbar, þ170 mmHg,
þ6.69 inHg)/Rod stroke end
SEM299G
SEM300G
SEM310G
SEM311G
CATALYST AND TURBOCHARGERZD
Inspection (Cont'd)
EM-1016
12. Remove the idler gears (A) and (B).
+Check the backlash of each gear before removing. Refer to
ªBACKLASH OF EACH GEARº, ªInspectionº.
CAUTION:
+Do not loosen the internal mechanism setting bolt of the
idler gear (A). (The idler gear cannot be reused when the
internal mechanism is released.)
+During removal of the idler gears (A) and (B), do not face
the rear side downward as the idler shaft will drop.
13. Set the fuel injection timing gear with the pulley holder (SST).
14. Remove injection pump timing gear.
15. Extract the balancer shaft taking care not to damage the
inner bushes of the cylinder block.
16. Remove the fuel injection pump.
17. Remove the front plate.
Inspection
BACKLASH OF EACH GEAR
Method using a fuse wire
+Tighten the holding bolts of each gear to specification.
+Place a wire in the biting area of the teeth between the gears
to be checked, rotate the crankshaft in the operating direc-
tion so that the wire is taken inwards.
+Measure the crushed area of the wire with a micrometer.
Method using dial gauge
+Tighten the holding bolts of each gear to specification.
+Place the dial gauge on the tooth surface area of the gear to
be checked.
+With the other gear in a set position, measure the dial gauge
value while moving the gear left and right.
Standard: 0.07 - 0.11 mm (0.0028 - 0.0043 in)
Limit: 0.20 mm (0.0079 in)
+If it exceeds the limit, replace the gear and measure again.
+
If it exceeds the limit again, check for the installation condition of
the gear driving parts, wear of shaft and gear, and oil clearance.
SEM348G
SEM378G
SEM352G
FEM035
FEM036
TIMING GEARZD
Removal (Cont'd)
EM-1042
