Servicing Specifications - Kubota WSM B2050 Workshop Manual

B2050, B2350, B2650, B3150, WSM

2. SERVICING SPECIFICATIONS

ENGINE BODY
Compression Pressure
• Variance Among Cylinders
Valve Clearance (Cold)
Top Clearance
Cylinder Head Surface
Valve Recessing
Valve Stem to Valve Guide
• Valve Stem
• Valve Guide
Valve Guide
(Intake and Exhaust)
Valve Face
Valve Seat
Valve Spring
Item
D1105, V1505
D1305
Flatness
Intake and Exhaust
Clearance
O.D.
I.D.
Angle (Intake)
Angle (Exhaust)
Angle (Intake)
Angle (Exhaust)
Width
Free Length
Tilt
Setting Load
1-S7
Factory Specification
3.73 to 4.11 MPa
2
38.0 to 42.0 kgf/cm
541 to 597 psi
–
0.145 to 0.185 mm
0.0057 to 0.0073 in.
0.55 to 0.75 mm
0.022 to 0.029 in.
0.80 to 1.0 mm
0.032 to 0.039 in.
–
0.050 to 0.25 mm
0.0020 to 0.0098 in.
0.035 to 0.065 mm
0.0014 to 0.0025 in.
6.960 to 6.975 mm
0.2741 to 0.2746 in.
7.010 to 7.025 mm
0.2760 to 0.2765 in.
7.010 to 7.025 mm
0.2760 to 0.2765 in.
1.047 rad
60 °
0.785 rad
45 °
1.047 rad
60 °
0.785 rad
45 °
2.12 mm
0.0835 in.
37.0 to 37.5 mm
1.46 to 1.47 in.
–
117.4 N / 31.0 mm
11.97 kgf / 31.0 mm
26.39 lbf / 1.22 in.
ENGINE
Allowable Limit
2.26 MPa
2
23.0 kgf/cm
327 psi
10 % or less
–
–
–
0.05 mm
0.002 in.
0.40 mm
0.016 in.
0.10 mm
0.0039 in.
–
–
–
–
–
–
–
–
36.5 mm
1.44 in.
1.0 mm
0.039 in.
100.0 N / 31.0 mm
10.20 kgf / 31.0 mm
22.48 lbf / 1.22 in.
KiSC issued 03, 2014 A