Checking Oil Clearance Between Rocker Arm And Rocker Arm Shaft; Checking Push Rod Alignment; Checking Oil Clearance Between Tappet And Tappet Guide Bore - Kubota WSM 05-E4B Series Workshop Manual

4. ENGINE
6.13 Checking oil clearance between
rocker arm and rocker arm shaft
Tools required
• Inside micrometer
• Outside micrometer
1. Measure the rocker arm I.D. with an inside
micrometer.
Service specifi-
Rocker arm I.D.
cation
2. Measure the rocker arm shaft O.D. with an outside
micrometer.
Rocker arm shaft Service specifi-
O.D. cation
3. Calculate the oil clearance.
NOTE
• If the oil clearance is more than the service
limit, replace the rocker arm and measure
the oil clearance again.
• If the oil clearance stays more than the
service limit, replace the rocker arm shaft
also.
4-56
12.000 to 12.018 mm
0.47244 to 0.47314 in.
11.973 to 11.984 mm
0.47138 to 0.47181 in.
Service specifi-
Oil clearance be-
cation
tween rocker arm
and rocker arm
Service limit
shaft

6.14 Checking push rod alignment

Tools required
• V blocks
• Surface plate
• Dial gauge
1. Put the push rod on V blocks.
2. Measure the push rod alignment.
NOTE
• If the measurement is more than the service
limit, replace the push rod.
Pushrod alignment Service limit
6.15 Checking oil clearance between
tappet and tappet guide bore
Tools required
• Outside micrometer
• Cylinder gauge
SERVICING
6. Servicing
0.016 to 0.045 mm
0.00063 to 0.0017 in.
0.10 mm
0.0039 in.
0.25 mm
0.0098 in.
05-E4B SERIES,05-E4BG SERIES
KiSC issued 03, 2023 A