Kubota WSM 05-E4B Series - Servicing Specifications; Servicing Specification for Engine

2. Servicing specifications
2.1 Servicing specification for engine
Engine body
Item Service specification Service limit
Cylinder head surface Flatness －
0.05 mm
0.002 in.
Top clearance
D1005-E4B / E4BG
D1
105-E4B / E4BG
V1505-E4B / E4BG
0.55 to 0.75 mm
0.022 to 0.029 in.
－
D1305-E4B / E4BG
0.80 to 1.0 mm
0.032 to 0.039 in.
－
Compression pressure
(Reference value)
3.73 to 4.11 MPa / 200 min
-1
(rpm)
38.0 to 42.0 kgf/cm
2
/ 200 min
-1
(rpm)
541 to 597 psi / 200 min
-1
(rpm)
2.26 MPa / 200 min
-1
(rpm)
23.0 kgf/cm
2
/ 200 min
-1
(rpm)
327 psi / 200 min
-1
(rpm)
V
ariance among cylinders － 10 % or less
V
alve seat
Angle (Intake)
1.0 rad
60°
－
Angle (Exhaust)
0.79 rad
45°
－
Width
2.12 mm
0.0835 in.
－
Valve face
Angle (Intake)
1.0 rad
60°
－
Angle (Exhaust)
0.79 rad
45°
－
Valve recessing
-0.050 to 0.25 mm
-0.0020 to 0.0098 in.
0.10 mm
0.0039 in.
Valve stem to valve guide Clearance
0.035 to 0.065 mm
0.0014 to 0.0025 in.
0.10 mm
0.0039 in.
• Valve stem O.D.
6.960 to 6.975 mm
0.2741 to 0.2746 in.
－
• Valve guide I.D.
7.010 to 7.025 mm
0.2760 to 0.2765 in.
－
Valve clearance (Cold)
0.145 to 0.185 mm
0.00571 to 0.00728 in.
－
Valve spring
Free length
31.3 to 31.8 mm
1.24 to 1.25 in.
30.3 mm
1.19 in.
Tilt －
1.0 mm
0.039 in.
Setting load / Setting length (In-
take)
117.4 N / 31.0 mm
11.97 kgf /31.0 mm
26.39 lbf / 1.22 in.
100 N / 31.0 mm
10.20 kgf / 31.0 mm
22.48 lbf / 1.22 in.
Rocker arm shaft to rocker arm Oil clearance
0.016 to 0.045 mm
0.00063 to 0.0017 in.
0.10 mm
0.0039 in.
•
Rocker arm shaft O.D.
11.973 to 11.984 mm
0.47138 to 0.47181 in.
－
• Rocker arm I.D.
12.000 to 12.018 mm
0.47244 to 0.47314 in.
－
(Continued)
SERVICING
2. Servicing specifications 4. ENGINE
05-E4B SERIES,05-E4BG SERIES
4-9
KiSC issued 03, 2023 A