Kubota D1803-CR-E4 - Checking Camshaft Alignment; Replacing Idle Gear Bushing

2. Move
the cam gear to the front and rear to measure
the side clearance.
NOTE
• If the
measurement is more than the service
limit, replace the camshaft stopper.
Side clearance of
camshaft
Service specifi-
cation
0.070 to 0.22 mm
0.0028 to 0.0086 in.
Service limit
0.30 mm
0.012 in.
7.19 Checking camshaft alignment
Tools required
• V blocks
• Surface plate
• Dial gauge
1. Hold the two end journals of camshaft with V blocks
on the surface plate.
2. Set a dial gauge with its point on the middle journal.
3. Turn the camshaft slowly and read the variation on
the indicator (Half of the measurement).
NOTE
• If the
measurement is more than the service
limit, replace the camshaft.
Camshaft align-
ment
Service limit
0.01 mm
0.0004 in.
7.20 Replacing idle gear bushing
Tools required
• Press tool
•
Idle gear bushing replacing tool
Removing idle gear bushing
1. Press out the used idle gear bushing with the
replacing tool.
(A) Removing direction
Installing idle gear bushing
1. Clean a
new idle gear bushing and idle gear bore,
and apply engine oil to them.
2. Press fit the new bushing with the replacing tool.
NOTE
• Make sure
that the bushing end aligns the
end of the idle gear.
SERVICING
7. Servicing 4. ENGINE
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
4-171
KiSC issued 12, 2018 A