Kohler Command PRO CH26 Service Manual

Specifi cations
18 24 690 01 Rev. KKohlerEngines.com
CLEARANCE
SPECIFICATIONS
3
ECH630-ECH680 ECH730-ECH749 CH26 CH735 CH745
Cylinder Bore
Bore I.D.
New 80.000/80.025 mm
(3.1496/3.2689 in.)
83.006/83.031 mm
(3.2680/3.2689 in.)
82.988/83.013 mm (3.2672/3.2682 in.)
O.D. - Max. Wear Limit 80.075 mm
(3.1526 in.)
83.081 mm (3.2709
in.)
83.051 mm (3.2697 in.)
Max. Out-of-Round Limit 0.120 mm (0.0047 in.) 0.12 mm (0.0047 in.)
Max. Taper 0.05 mm (0.0020 in.) 0.05 mm (0.0020 in.)
Cylinder Head
Max. Out-of-Flatness 0.076 mm (0.003 in.) 0.076 mm (0.003 in.)
Governor
Governor Cross Shaft -to-
Crankcase Running Clearance
6 mm Shaft
8 mm Shaft
0.025/0.126 mm (0.0009/0.0049 in.)
0.013/0.075 mm (0.0005/0.0030 in.)
0.025/0.126 mm (0.0009/0.0049 in.)
Cross Shaft O.D.
New
Max. Wear Limit
6 mm Shaft
New
Max. Wear Limit
8 mm Shaft
New
Max. Wear Limit
7.949/8.000 mm (0.3129/0.3149 in.)
7.936 mm (0.3124 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.)
Governor Gear Shaft -to-
Governor Gear Running
Clearance 0.090/0.160 mm (0.0035/0.0063 in.) 0.015/0.140 mm (0.0006/0.0055 in.)
Gear Shaft O.D.
New
Max. Wear Limit
5.990/6.000 mm (0.2358/0.2362 in.)
5.977 mm (0.2353 in.)
Ignition
Spark Plug Gap 0.76 mm (0.030 in.)
Crankshaft Position Sensor Air
Gap (only on earlier design
sensor bracket)
0.2-0.7 mm (0.008-0.027 in.)
Crankshaft Position Sensor
Max. Air Gap (only on later
design sensor bracket)
2.794 mm (0.110 in.)
Piston, Piston Rings, and Piston Pin
Piston Style A
Piston-to-Piston Pin Running
Clearance 0.006/0.017 mm (0.0002/0.0007 in.)
Pin Bore I.D.
New
Max. Wear Limit
17.006/17.012 mm (0.6695/0.6698 in.)
17.025 mm (0.6703 in.)
Pin O.D.
New
Max. Wear Limit
16.995/17.000 mm (0.6691/0.6693 in.)
16.994 mm (0.6691 in.)
3
Values are in Metric units. Values in parentheses are English equivalents.

Kohler Command PRO CH26 Specifications

General

Brand	Kohler
Model	Command PRO CH26
Category	Crankshaft
Language	English