Servicing Specifications - Kubota B1220 Workshop Manual

B1220, B1620, B1820, WSM

2. SERVICING SPECIFICATIONS

ENGINE BODY
Valve Clearance (Cold)
Compression Pressure
• Difference among Cylinders
Top Clearance
Cylinder Head Surface
Valve Recessing
Valve Stem to Valve Guide
• Valve Stem
• Valve Guide
Valve Face
Valve Seat
Valve Spring
Rocker Arm Shaft to Rocker Arm
• Rocker Arm Shaft
• Rocker Arm
Push Rod
Item
Flatness
Intake and Exhaust
Clearance
O.D.
I.D.
Angle
Angle
Width
Free Length
Tilt
Setting Load /
Setting Length
Clearance
O.D.
I.D.
Alignment
1-S4
Factory Specification
0.145 to 0.185 mm
0.00571 to 0.00728 in.
2.84 to 3.24 MPa
2
29.0 to 33.0 kgf/cm
412 to 469 psi
–
0.50 to 0.70 mm
0.0197 to 0.0276 in.
–
−0.10 to 0.10 mm
−0.0039 to 0.0039 in.
0.030 to 0.057 mm
0.00118 to 0.00224 in.
5.968 to 5.980 mm
0.23496 to 0.23543 in.
6.010 to 6.025 mm
0.23661 to 0.23720 in.
0.785 rad
45 °
0.785 rad
45 °
2.12 mm
0.0835 in.
31.3 to 31.8 mm
1.232 to 1.252 in.
–
64.7 N / 27.0 mm
6.6 kgf / 27.0 mm
14.6 lbf / 1.063 in.
0.016 to 0.045 mm
0.00063 to 0.00177 in.
10.473 to 10.484 mm
0.41232 to 0.41276 in.
10.500 to 10.518 mm
0.41339 to 0.41410 in.
–
ENGINE
Allowable Limit
–
2.26 MPa
2
23.0 kgf/cm
327 psi
10 % or less
–
0.05 mm
0.002 in.
0.30 mm
0.0118 in.
0.10 mm
0.0039 in.
–
–
–
–
–
28.4 mm
1.118 in.
1.2 mm
0.047 in.
54.9 N / 27.0 mm
5.6 kgf / 27.0 mm
12.3 lbf / 1.063 in.
0.15 mm
0.0059 in.
–
–
0.25 mm
0.00988 in.
(EU)
KiSC issued 07, 2011 A