Kohler CH940 Service Manual

1.10
Section 1
Safety and General Information
Grass Screen
Hex Stud Torque .............................................................................................. 9.9 N·m (88 in. lb.)
Mounting Screw Torque ................................................................................ 9.9 N·m (88 in. lb.)
Front Drive Shaft Screw Torque (Into Flywheel) ....................................... 24.4 N·m (216 in. lb.)
Governor
Governor Cross Shaft-to-Crankcase Running Clearance ........................ 0.025/0.087 mm (0.0009/0.0034 in.)
Governor Cross Shaft O.D.
New ........................................................................................................... 7.963/8.000 mm (0.3135/0.3149 in.)
Max. Wear Limit ...................................................................................... 7.936 mm (0.3124 in.)
Governor Gear Shaft-to-Governor Gear Running Clearance ................. 0.070/0.160 mm (0.0027/0.0063 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 ......................................................................... 7.3 N·m (65 in. lb.)
Ignition
Spark Plug Type (Champion
®
or Equivalent) ............................................. XC10YC
Spark Plug Gap ............................................................................................... 0.76 mm (0.030 in.)
Spark Plug Torque .......................................................................................... 24.4-29.8 N·m (18-22 ft. lb.)
Ignition Module Air Gap ............................................................................... 0.28/0.33 mm (0.011/0.013 in.)
Ignition Module Fastener Torque ................................................................. 6.2 N·m (55 in. lb.) into new holes, or
4.0 N·m (35 in. lb.) into used holes
Lifter Feed Chamber
Cover/Baffle Screw Torque ............................................................................ 6.2 N·m (55 in. lb.)
Muffler
Muffler Retaining Nut Torque ...................................................................... 24.4 N·m (216 in. lb.)
Oil Cooler
Mounting Screws Torque .............................................................................. 3.9 N·m (35 in. lb.)
Oil Filter
Oil Filter Torque .............................................................................................. 3/4-1 turn after gasket contact
Oil Filter Adapter/Housing
Mounting Screw Torque ................................................................................ 24.4 N·m (216 in. lb.)
Piston, Piston Rings, and Piston Pin
Piston-to-Piston Pin Running Clearance .................................................... 0.006/0.018 mm (0.0002/0.0007 in.)
Piston Pin Bore I.D.
New ........................................................................................................... 19.006/17.013 mm (0.7482/0.7485 in.)
Max. Wear Limit ...................................................................................... 19.025 mm (0.7490 in.)
Piston Pin O.D.
New ........................................................................................................... 18.995/19.000 mm (0.7478/0.7480 in.)
Max. Wear Limit ...................................................................................... 18.994 mm (0.7478 in.)

Kohler CH940 Specifications

General

Brand	Kohler
Model	CH940
Category	Engine
Language	English