1.18
Section 1
Safety and General Information
Center Compression Ring End Gap
New Bore
CH270 ................................................................................................. 0.325/0.400 mm (0.013/0.016 in.)
CH395 ................................................................................................. 0.650/0.800 mm (0.026/0.032 in.)
CH440 ................................................................................................. 0.640/0.800 mm (0.025/0.032 in.)
Used Bore (Max.)
CH270 ................................................................................................. 1.00 mm (0.039 in.)
CH395,CH440 .................................................................................... 1.50 mm (0.059 in.)
Oil Control Ring-to-Groove Side Clearance
CH270,CH395 ........................................................................................... 0.05/0.19 mm (0.0019/0.0075 in.)
CH440
........................................................................................................
........................................................................................................
0.09/0.15 mm (0.0035/0.0059 in.)
0.09/0.15 mm (0.0035/0.0059 in.)
Piston Thrust Face O.D.
New
CH270
2
................................................................................................ 69.970/69.960 mm (2.755/2.754 in.)
CH395
3
................................................................................................ 77.955/77.975 mm (3.071/3.070 in.)
CH440
4
................................................................................................ 88.955/88.975 mm (3.502/3.503 in.)
Max. Wear Limit
CH270 ................................................................................................. 69.82 mm (2.749 in.)
CH395 ................................................................................................. 77.82 mm (3.064 in.)
CH440 ................................................................................................. 88.82 mm (3.497 in.)
Piston Thrust Face-to-Cylinder Bore Running Clearance
CH270
2
....................................................................................................... 0.057/0.075 mm (0.002/0.003 in.)
CH395
3
....................................................................................................... 0.033/0.067 mm (0.001/0.003 in.)
CH440
4
.......................................................................................................
.......................................................................................................
0.025/0.060 mm (0.001/0.002 in.)
0.025/0.060 mm (0.001/0.002 in.)
Rocker Arm
Rocker Arm Stud Torque ............................................................................... 13.6 N·m (120 in. lb.)
Rocker Arm Pivot Jam Nut Torque .............................................................. 10 N·m (89 in. lb.)
Retractable Starter
Retractable Starter Cover Screw Torque ...................................................... 5.4 N·m (48 in. lb.)
Retractable Starter Center Screw Torque ..................................................... 10 N·m (89 in. lb.)
Valve Cover
Valve Cover Fastener Torque......................................................................... 10 N·m (89 in. lb.)
Valves and Valve Lifters
Intake Valve Stem-to-Valve Guide Running Clearance
CH270 ........................................................................................................ 0.038/0.065 mm (0.0015/0.0026 in.)
CH395,CH440 ........................................................................................... 0.025/0.055 mm (0.0010/0.0022 in.)
Exhaust Valve Stem-to-Valve Guide Running Clearance
CH270 ........................................................................................................ 0.085/0.112 mm (0.0033/0.0044 in.)
CH395,CH440 ........................................................................................... 0.040/0.07 mm (0.0016/0.0026 in.)
2
Measure 21.8-22.2 mm (0.8583-0.8740 in.) above the bo om of the piston skirt at right angles to the piston pin.
3
Measure 17.8-18.2 mm (0.7008-0.7165 in.) above the bo om of the piston skirt at right angles to the piston pin.
4
Measure 29.8-30.2 mm (1.1732-1.1890 in.) above the bo om of the piston skirt at right angles to the piston pin.
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