Kubota G23, Workshop Manual

Page: 87 / 343

ENGINE
G23, G26, WSM
1-S5 (EU)
Tappet to Tappet Guide
• Tappet
• Tappet Guide
Clearance
O.D.
I.D.
0.016 to 0.052 mm
0.00063 to 0.0020 in.
17.966 to 17.984 mm
0.70733 to 0.70803 in.
18.000 to 18.018 mm
0.70867 to 0.70937 in.
0.10 mm
0.0039 in.
–
–
Timing Gear
• Crank Gear to Idle Gear
• Idle Gear 1 to Cam Gear
• Idle Gear 1 to Injection Pump Gear
• Crank Gear to Oil Pump Drive Gear
Backlash
Backlash
Backlash
Backlash
0.0430 to 0.124 mm
0.00170 to 0.00488 in.
0.0470 to 0.123 mm
0.00185 to 0.00484 in.
0.0460 to 0.124 mm
0.00182 to 0.00488 in.
0.0410 to 0.123 mm
0.00162 to 0.00484 in.
0.15 mm
0.0059 in.
0.15 mm
0.0059 in.
0.15 mm
0.0059 in.
0.15 mm
0.0059 in.
Idle Gear Shaft to Gear Bushing
• Idle Gear 1
• Idle Gear Bushing
• Idle Gear Shaft 1
Clearance
I.D.
O.D.
0.020 to 0.084 mm
0.00079 to 0.0033 in.
20.000 to 20.051 mm
0.78741 to 0.78940 in.
19.967 to 19.980 mm
0.78611 to 0.78661 in.
0.10 mm
0.0039 in.
–
–
Idle Gear
• Idle Gear 1 Side Clearance 0.20 to 0.51 mm
0.0079 to 0.020 in.
0.80 mm
0.031 in.
Camshaft Side Clearance
Alignment
0.15 to 0.31 mm
0.0059 to 0.012 in.
–
0.50 mm
0.020 in.
0.01 mm
0.0004 in.
Cam Height Intake
Exhaust
26.88 mm
1.058 in.
26.88 mm
1.058 in.
26.83 mm
1.056 in.
26.83 mm
1.056 in.
Camshaft Journal to Cylinder Block Bore
• Camshaft Journal
• Cylinder Block Bore
Oil Clearance
O.D.
I.D.
0.050 to 0.091 mm
0.0020 to 0.0035 in.
32.934 to 32.950 mm
1.2967 to 1.2972 in.
33.000 to 33.025 mm
1.2993 to 1.3001 in.
0.15 mm
0.0059 in.
–
–
Piston Pin Bore I.D. 20.000 to 20.013 mm
0.78741 to 0.78791 in.
20.05 mm
0.7894 in.
Item Factory Specification Allowable Limit
KiSC issued 08, 2009 A