Kubota WSM B2050 User Manual

ENGINE
B2050, B2350, B2650, B3150, WSM
1-S7
2. SERVICING SPECIFICATIONS
ENGINE BODY
Item Factory Specification Allowable Limit
Compression Pressure
• Variance Among Cylinders
3.73 to 4.11 MPa
38.0 to 42.0 kgf/cm
2
541 to 597 psi
–
2.26 MPa
23.0 kgf/cm
2
327 psi
10 % or less
Valve Clearance (Cold) 0.145 to 0.185 mm
0.0057 to 0.0073 in.
–
Top Clearance D1105, V1505
D1305
0.55 to 0.75 mm
0.022 to 0.029 in.
0.80 to 1.0 mm
0.032 to 0.039 in.
–
–
Cylinder Head Surface Flatness – 0.05 mm
0.002 in.
Valve Recessing Intake and Exhaust 0.050 to 0.25 mm
0.0020 to 0.0098 in.
0.40 mm
0.016 in.
Valve Stem to Valve Guide
• Valve Stem
• Valve Guide
Clearance
O.D.
I.D.
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.
0.10 mm
0.0039 in.
–
–
Valve Guide
(Intake and Exhaust)
7.010 to 7.025 mm
0.2760 to 0.2765 in.
–
Valve Face Angle (Intake)
Angle (Exhaust)
1.047 rad
60 °
0.785 rad
45 °
–
–
Valve Seat Angle (Intake)
Angle (Exhaust)
Width
1.047 rad
60 °
0.785 rad
45 °
2.12 mm
0.0835 in.
–
–
–
Valve Spring Free Length
Tilt
Setting Load
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.
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

Kubota WSM B2050 Specifications

General

Brand	Kubota
Model	WSM B2050
Category	Tractor
Language	English