Kohler Command PRO ECH749 Service Manual

1.9
Section 1
Safety and General Information
1
Camshaft
End Play (No Shim) ........................................................................................ 0.101/0.406 mm (0.0040/0.0160 in.)
Running Clearance .......................................................................................... 0.025/0.105 mm (0.001/0.004 in.)
Bore I.D.
New ............................................................................................................ 20.000/20.025 mm (0.7874/0.7884 in.)
Max. Wear Limit ....................................................................................... 20.038 mm (0.7889 in.)
Camsha Bearing Surface O.D.
New ............................................................................................................ 19.920/19.975 mm (0.7843/0.7864 in.)
Max. Wear Limit ....................................................................................... 19.914 mm (0.7840 in.)
Connecting Rod
Cap Fastener Torque (torque in increments)............................................... 11.6 N·m (103 in. lb.)
Connecting Rod-to-Crankpin Running Clearance @ 21°C (70°F)
New ............................................................................................................ 0.043/0.073 mm (0.0017/0.0029 in.)
Max. Wear Limit ....................................................................................... 0.088 mm (0.0035 in.)
Connecting Rod-to-Crankpin Side Clearance ............................................. 0.26/0.63 mm (0.0102/0.0248 in.)
Connecting Rod-to-Piston Pin Running Clearance @ 21°C (70°F) .......... 0.015/0.028 mm (0.0006/0.0011 in.)
Piston Pin End I.D. @ 21°C (70°F)
New ............................................................................................................ 17.015/17.023 mm (0.6699/0.6702 in.)
Max. Wear Limit ....................................................................................... 17.036 mm (0.6707 in.)
Crankcase
Governor Cross Sha Bore I.D.
New ............................................................................................................ 8.025/8.075 mm (0.3159/0.3179 in.)
Max. Wear Limit ....................................................................................... 8.088 mm (0.3184 in.)
Breather Cover Fastener Torque ................................................................... 11.3 N·m (100 in. lb.) into new holes
7.3 N·m (65 in. lb.) into used holes
Oil Temperature Sensor Torque (into breather cover) ............................... 7.3 N·m (65 in. lb.)
Oil Sentry Torque (into breather cover) ....................................................... 4.5 N·m (40 in. lb.)
Oil Drain Plug Torque .................................................................................... 13.6 N·m (10  . lb.)
Closure Plate
Closure Plate Fastener Torque ...................................................................... 25.6 N·m (227 in. lb.)

Kohler Command PRO ECH749 Specifications

General

Fuel System	Carburetor
Starter	Electric
Governor Type	Mechanical
Lubrication System	Full Pressure
Fuel Type	Gasoline
Crankshaft Orientation	Horizontal
Bore	3.27 in (83 mm)
Cooling System	Air
Oil Type	SAE 10W-30
Spark Plug Gap	0.030 in (0.76 mm)
Valve Clearance - Intake	0.004 - 0.006 in (0.10 - 0.15 mm)
Crankshaft Type	Varies by model
Crankshaft Thread Size	Varies by model
Crankshaft Length	Varies by model
Crankshaft Diameter	Varies by model
Type	Overhead Valve (OHV)