Kubota D1803-CR-E4 - Checking Side Clearance of Idle Gear; Checking Side Clearance of Camshaft

2. Hold
the mating gear and move the gear to
measure the backlash.
NOTE
• If the
backlash is more than the service limit,
measure the oil clearance in the journal part
of each shaft.
• If the oil clearance is correct, replace the
gear.
• If the crank gear is replaced, it is necessary
to calibrate the injection timing with the
diagnosis tool.
Backlash between
idle gear and
crank gear
Service specifi-
cation
0.04150 to 0.1122 mm
0.001634 to 0.004417 in.
Service limit
0.15 mm
0.0059 in.
Backlash between
idle gear and cam
gear
Service specifi-
cation
0.04150 to 0.1154 mm
0.001634 to 0.004543 in.
Service limit
0.15 mm
0.0059 in.
Backlash between
idle gear and sup-
ply pump gear
Service specifi-
cation
0.04150 to 0.1154 mm
0.001634 to 0.004543 in.
Service limit
0.15 mm
0.0059 in.
Backlash between
crank gear and oil
pump drive gear 2
Service specifi-
cation
0.04150 to 0.1090 mm
0.001634 to 0.004291 in.
Service limit
0.15 mm
0.0059 in.
RELATED PAGE
4.30 Measuring angular deviation between crankshaft
T.D.C. and crankshaft position sensor detected T
.D.C.
on page 4-112
7.17 Checking side clearance of idle
gear
Tools required
• Dial gauge
1.
Set a dial gauge with its point on the idle gear.
2. Move the
idle gear to the front and rear to measure
the side clearance.
NOTE
• If the
measurement is more than the service
limit, replace the idle gear collar.
Side clearance of
idle gear
Service specifi-
cation
0.15 to 0.25 mm
0.0059 to 0.0098 in.
Service limit
0.90 mm
0.035 in.
7.18 Checking side clearance of
camshaft
Tools required
• Dial gauge
1.
Set a dial gauge with its point on the camshaft.
4. ENGINE
SERVICING
7. Servicing
4-170
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
KiSC issued 12, 2018 A