wsm B2420 - Page 77

ENGINE
B2420, WSM
1-S5
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.
11.973 to 11.984 mm
0.47138 to 0.47181 in.
12.000 to 12.018 mm
0.47244 to 0.47314 in.
0.10 mm
0.0039 in.
–
–
Push Rod Alignment – 0.25 mm
0.0098 in.
Tappet to Tappet Guide
• Tappet
• Tappet Guide
Clearance
O.D.
I.D.
0.020 to 0.062 mm
0.00079 to 0.00244 in.
19.959 to 19.980 mm
0.78579 to 0.78661 in.
20.000 to 20.021 mm
0.78740 to 0.78822 in.
0.07 mm
0.003 in.
–
–
Camshaft Side Clearance
Alignment
0.070 to 0.22 mm
0.0028 to 0.0086 in.
–
0.30 mm
0.012 in.
0.01 mm
0.0004 in.
Cam Height Intake
Exhaust
28.80 mm
1.134 in.
29.00 mm
1.142 in.
28.75 mm
1.132 in.
28.95 mm
1.140 in.
Camshaft Journal to Cylinder Block Bore
• Camshaft Journal
• Cylinder Block Bore
Clearance
O.D.
I.D.
0.050 to 0.091 mm
0.0020 to 0.0035 in.
35.934 to 35.950 mm
1.4148 to 1.4153 in.
36.000 to 36.025 mm
1.4174 to 1.4183 in.
0.15 mm
0.0059 in.
–
–
Timing Gear
• Crank Gear to Idle Gear
• Idle Gear to Cam Gear
• Idle Gear to Injection Pump Gear
• Injection Pump Gear to Governor Gear
Backlash
Backlash
Backlash
Backlash
0.0320 to 0.115 mm
0.00126 to 0.00452 in.
0.0360 to 0.114 mm
0.00142 to 0.00448 in.
0.0340 to 0.116 mm
0.00134 to 0.00456 in.
0.0300 to 0.117 mm
0.00119 to 0.00460 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 Side Clearance 0.20 to 0.51 mm
0.0079 to 0.020 in.
0.80 mm
0.031 in.
Item Factory Specification Allowable Limit
KiSC issued 06, 2012 A