Kubota G23, Руководство по ремонту

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ENGINE
G23, G26, WSM
1-S4 (EU)
2. SERVICING SPECIFICATIONS
[1] G23
ENGINE BODY
Item Factory Specification Allowable Limit
Valve Clearance (Cold) 0.145 to 0.185 mm
0.00571 to 0.00728 in.
–
Compression Pressure
• Differential among Cylinders
3.53 to 4.02 MPa
36.0 to 41.0 kgf/cm
2
512 to 583 psi
–
2.55 MPa
26.0 kgf/cm
2
370 psi
10 % or less
Top Clearance 0.55 to 0.70 mm
0.022 to 0.027 in.
–
Cylinder Head Surface Flatness – 0.05 mm
0.002 in.
Valve Recessing Intake and Exhaust − 0.10 to 0.10 mm
− 0.0039 to 0.0039 in.
0.30 mm
0.012 in.
Valve Stem to Valve Guide
• Valve Stem
• Valve Guide
Clearance
O.D.
I.D.
0.030 to 0.057 mm
0.0012 to 0.0022 in.
5.968 to 5.980 mm
0.2350 to 0.2354 in.
6.010 to 6.025 mm
0.2367 to 0.2372 in.
0.10 mm
0.0039 in.
–
–
Valve Face Angle (Intake) 0.79 rad
45 °
–
Angle (Exhaust) 0.79 rad
45 °
–
Valve Seat Angle (Intake and
exhaust) 0.79 rad
45 °
–
Width 2.12 mm
0.0835 in.
–
Valve Spring Free Length 31.3 to 31.8 mm
1.24 to 1.25 in.
28.4 mm
1.12 in.
Tilt – 1.2 mm
0.047 in.
Setting Load 65 N / 27.0 mm
6.6 kgf / 27.0 mm
15 lbf / 1.06 in.
55 N / 27.0 mm
5.6 kgf / 27.0 mm
12 lbf / 1.06 in.
Rocker Arm Shaft to Rocker Arm
• Rocker Arm Shaft
• Rocker Arm
Clearance
O.D.
I.D.
0.016 to 0.045 mm
0.00063 to 0.0017 in.
10.473 to 10.484 mm
0.41233 to 0.41275 in.
10.500 to 10.518 mm
0.41339 to 0.41409 in.
0.15 mm
0.0059 in.
–
–
Push Rod Alignment – 0.25 mm
0.0098 in.
KiSC issued 08, 2009 A