Governor Cross Shaft O.d.; Main Bearing I.d. (Crankcase/Closure Plate); Piston, Piston Rings, And Piston Pin; Valves And Valve Lifters - Kohler CH940-CH1000 Service Manual

Wear Limits

Governor Cross Shaft O.D.

New
Max. Wear Limit
Governor Gear Shaft-to-Governor Gear Running Clearance
Governor Gear Shaft O.D.
New
Max. Wear Limit
Ignition
Spark Plug Gap
Ignition Module Air Gap

Main Bearing I.D. (crankcase/closure plate)

New (installed)
Max. Wear Limit

Piston, Piston Rings, and Piston Pin

Piston-to-Piston Pin Running Clearance
Piston Pin Bore I.D.
New
Max. Wear Limit
Piston 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 and Center Compression Ring End Gap
New
Max. Wear Limit
Piston Thrust Face O.D.
New
Max. Wear Limit
Piston Thrust Face-to-Cylinder Bore
New

Valves and Valve Lifters

Hydraulic Valve Lift er to Crankcase Running Clearance
Intake Valve Stem-to-Valve Guide Running Clearance
Exhaust Valve Stem-to-Valve Guide Running Clearance
Intake Valve Guide I.D.
New
Max. Wear Limit
Exhaust Valve Guide I.D.
New
Max. Wear Limit
Valve Guide Reamer Size
Standard
0.25 mm O.S.
Nominal Valve Face Angle
5 Measure 11 mm (0.433 in.) above bottom of piston skirt at right angles to piston pin.
62 690 01 Rev. C
5
5 Running Clearance
KohlerEngines.com
CH940 CH960 CH980
7.963/8.000 mm (0.3135/0.3149 in.)
7.936 mm (0.3124 in.)
0.070/0.160 mm (0.0027/0.0063 in.)
5.990/6.000 mm (0.2358/0.2362 in.)
5.977 mm (0.2353 in.)
0.76 mm (0.030 in.)
0.28/0.33 mm (0.011/0.013 in.)
45.040/45.145 mm (1.773/1.777 in.)
45.158 mm
0.006/0.018 mm (0.0002/0.0007 in.)
19.006/17.013 mm (0.7482/0.7485 in.)
19.025 mm (0.7490 in.)
18.995/19.000 mm (0.7478/0.7480 in.)
18.994 mm (0.7478 in.)
0.04/0.08 mm (0.0015/0.0031 in.)
0.04/0.08 mm (0.0015/0.0031 in.)
0.03/0.19 mm (0.0011/0.0074 in.)
0.30/0.55 mm (0.011/0.021 in.)
0.94 mm (0.037 in.)
89.953/89.967 mm (3.5414/3.5420 in.)
89.925 mm (3.540 in.)
0.033/0.72 mm (0.0013/0.0028 in.)
0.012/0.050 mm (0.0004/0.0019 in.)
0.038/0.076 mm (0.0015/0.0030 in.)
0.050/0.088 mm (0.0020/0.0035 in.)
7.038/7.058 mm (0.2771/0.2779 in.)
7.135 mm (0.2809 in.)
7.038/7.058 mm (0.2771/0.2779 in.)
7.159 mm (0.2819 in.)
7.048 mm (0.2775 in.)
7.298 mm (0.2873 in.)
45°
Specifi cations
CH1000
11