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1.12
Section 1
Safety and General Information
Cylinder Bore
Cylinder Bore I.D.
New - CV17 ............................................................................................. 73.006/73.031 mm (2.8742/2.8752 in.)
New - CV18,CV20,CV22 (624 cc) ......................................................... 77.000/77.025 mm (3.0315/3.0325 in.)
New - CV22/23 (674 cc) ......................................................................... 80.000/80.025 mm (3.1496/3.1506 in.)
New - CV25,CV26,CV730-750 ............................................................. 82.988/83.013 mm (3.2672/3.2682 in.)
Max. Wear Limit - CV17........................................................................ 73.070 mm (2.8757 in.)
Max. Wear Limit - CV18,CV20,CV22 (624 cc) .................................... 77.063 mm (3.0340 in.)
Max. Wear Limit - CV22/23 (674 cc) .................................................... 80.065 mm (3.1522 in.)
Max. Wear Limit - CV25,CV26,CV730-750 ........................................ 83.051 mm (3.2697 in.)
Max. Out-of-Round CV17 ..................................................................... 0.13 mm (0.0051 in.)
Max. Out-of-Round CV18-750 ............................................................. 0.12 mm (0.0047 in.)
Max. Taper ............................................................................................... 0.05 mm (0.0020 in.)
Cylinder Head
Cylinder Head Fastener Torque
Hex Flange Nut - Torque in Two Stages .............................................. first to 16.9 N·m (150 in. lb.)
finally to 33.9 N·m (300 in. lb.)
Head Bolt - Torque in Two Stages ........................................................ first to 22.6 N·m (200 in. lb.)
finally to 41.8 N·m (370 in. lb.)
Max. Out-of-Flatness..................................................................................... 0.076 mm (0.003 in.)
Rocker Arm Screw Torque ........................................................................... 11.3 N·m (100 in. lb.)
Fan/Flywheel
Fan Fastener Torque ...................................................................................... 9.9 N·m (88 in. lb.)
Flywheel Retaining Screw Torque .............................................................. 66.4 N·m (49 ft. lb.)
Governor
Governor Cross Shaft-to-Crankcase Running Clearance
6 mm Shaft .............................................................................................. 0.013/0.075 mm (0.0005/0.0030 in.)
8 mm Shaft .............................................................................................. 0.025/0.126 mm (0.0009/0.0049 in.)
Governor Cross Shaft O.D.
6 mm Shaft
New ....................................................................................................... 5.975/6.012 mm (0.2352/0.2367 in.)
Max. Wear Limit .................................................................................. 5.962 mm (0.2347 in.)
8 mm Shaft
New ....................................................................................................... 7.949/8.000 mm (0.3129/0.3149 in.)
Max. Wear Limit .................................................................................. 7.936 mm (0.3124 in.)
Governor Gear Shaft-to-Governor
Gear Running Clearance ....................................................................... 0.015/0.140 mm (0.0006/0.0055 in.)
Governor Gear Shaft O.D.
New .......................................................................................................... 5.990/6.000 mm (0.2358/0.2362 in.)
Max. Wear Limit ..................................................................................... 5.977 mm (0.2353 in.)
Governor Lever Nut Torque ........................................................................ 6.8 N·m (60 in. lb.)