Kohler command pro ECH749 Service Manual page 18

Specifi cations
CLEARANCE
SPECIFICATIONS 3
Cylinder Bore
Bore I.D.
New
O.D. - Max. Wear Limit
Max. Out-of-Round Limit
Max. Taper
Cylinder Head
Max. Out-of-Flatness
Governor
Governor Cross Shaft -to-
Crankcase Running Clearance
6 mm Shaft
8 mm Shaft
Cross Shaft O.D.
New
Max. Wear Limit
6 mm Shaft
New
Max. Wear Limit
8 mm Shaft
New
Max. Wear Limit
Governor Gear Shaft -to-
Governor Gear Running
Clearance
Gear Shaft O.D.
New
Max. Wear Limit
Ignition
Spark Plug Gap
Crankshaft Position Sensor Air
Gap (only on earlier design
sensor bracket)
Crankshaft Position Sensor
Max. Air Gap (only on later
design sensor bracket)
Piston, Piston Rings, and Piston Pin
Piston Style A
Piston-to-Piston Pin Running
Clearance
Pin Bore I.D.
New
Max. Wear Limit
Pin O.D.
New
Max. Wear Limit
Values are in Metric units. Values in parentheses are English equivalents.
3
18
ECH630-ECH680 ECH730-ECH749
80.000/80.025 mm 83.006/83.031 mm
(3.1496/3.2689 in.) (3.2680/3.2689 in.)
80.075 mm 83.081 mm (3.2709
(3.1526 in.)
0.120 mm (0.0047 in.)
0.05 mm (0.0020 in.)
0.076 mm (0.003 in.)
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.)
0.090/0.160 mm (0.0035/0.0063 in.)
5.990/6.000 mm (0.2358/0.2362 in.)
0.2-0.7 mm (0.008-0.027 in.)
2.794 mm (0.110 in.)
0.006/0.017 mm (0.0002/0.0007 in.)
17.006/17.012 mm (0.6695/0.6698 in.)
16.995/17.000 mm (0.6691/0.6693 in.)
KohlerEngines.com
CH26
82.988/83.013 mm (3.2672/3.2682 in.)
83.051 mm (3.2697 in.)
in.)
0.12 mm (0.0047 in.)
0.05 mm (0.0020 in.)
0.076 mm (0.003 in.)
0.013/0.075 mm (0.0005/0.0030 in.)
0.025/0.126 mm (0.0009/0.0049 in.)
5.975/6.012 mm (0.2352/0.2367 in.)
5.962 mm (0.2347 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.)
5.977 mm (0.2353 in.)
0.76 mm (0.030 in.)
17.025 mm (0.6703 in.)
16.994 mm (0.6691 in.)
CH735 CH745
24 690 01 Rev. K