Kohler command pro CH742 Service Manual page 10

Specifi cations
CLEARANCE SPECIFICATIONS
Governor
Governor Cross Shaft-to-Crankcase
Running Clearancet
Cross Shaft O.D.
New
Max. Wear Limit
Governor Gear Shaft-to-Governor Gear
Running Clearance
Gear Shaft O.D.
New
Max. Wear Limit
Ignition
Spark Plug Gap
Module Air Gap
Piston, Piston Rings, and Piston Pin
Piston-to-Piston Pin Running Clearance
Pin Bore I.D.
New
Max. Wear Limit
Pin O.D.
New
Max. Wear Limit
Top Compression Ring-to-Groove Side Clearance
Middle Compression Ring-to-Groove Side Clearance
Oil Control Ring-to-Groove Side Clearance
Top Compression Ring End Gap
New Bore
Used Bore (Max)
Middle Compression Ring End Gap
New Bore
Used Bore (Max)
Thrust Face O.D.
New
Max. Wear Limit
Piston Thrust Face-to-Cylinder Bore Running
Clearance
New
Values are in Metric units. Values in parentheses are English equivalents.
3
Measure 6 mm (0.2362 in.) above bottom of piston skirt at right angles to piston pin.
7
8 Measure 13 mm (0.5118 in.) above bottom of piston skirt at right angles to piston pin.
10
3
KohlerEngines.com
CH682 CH732
0.025/0.126 mm (0.0009/0.0049 in.)
7.949/8.000 mm (0.3129/0.3149 in.)
7.936 mm (0.3124 in.)
0.015/0.140 mm (0.0006/0.0055 in.)
5.990/6.000 mm (0.2358/0.2362 in.)
5.977 mm (0.2353 in.)
0.76 mm (0.030 in.)
0.203/0.305 mm (0.008/0.012 in.)
0.006/0.017 mm (0.0002/0.0007 in.)
17.006/17.012 mm (0.6695/0.6698 in.)
17.025 mm (0.6703 in.)
16.995/17.000 mm (0.6691/0.6693 in.)
16.994 mm (0.6691 in.)
0.030/0.070 mm (0.001/0.0026 in.)
00.030/0.070 mm (0.001/0.0026 in.)
0.060/0.190 mm (0.0022/0.0073 in.)
0.100/
0.279 mm
(0.0039/
0.0110 in.)
0.490 mm
(0.0192 in.)
1.400/
1.679 mm
(0.0551/
0.0661 in.)
1.941 mm
(0.0764 in.)
79.966 mm 82.978 mm (3.2668 in.)
(3.1483 in.)
8
79.821 mm
(3.1426 in.)
8
0.025/ 0.019/0.062 mm (0.0007/0.0024 in.)
0.068 mm
(0.0010/
0.0027 in.)
8
CH742 CH752
0.189/0.277 mm
(0.0074/0.0109 in.)
0.531 mm (0.0209 in.)
1.519/1.797 mm
(0.0598/0.0708 in.)
2.051 mm (0.0808 in.)
7
82.833 mm (3.2611 in.) 7
24 690 34 Rev. D
7