Kohler Command PRO CH620-CH740 Owner's Manual page 21

CLEARANCE SPECIFICATIONS
Valves and Valve Lifters
Hydraulic Valve Lifter 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
Intake Valve Minimum Lift
Exhaust Valve Minimum Lift
Nominal Valve Seat Angle
Values are in Metric units. Values in parentheses are English equivalents.
3
24 690 06 Rev. K
CH18/CH20/
3
CH620/CH621/
CH640/CH641
KohlerEngines.com
CH22/CH23/
CH22/ CH620/
CH640/
CH670/CH680
0.0241/0.0501 mm (0.0009/0.0020 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.)
7.134 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.)
8.07 mm (0.3177 in.)
8.07 mm (0.3177 in.)
45°
Specifi cations
CH25/ CH750
CH730/
CH740
13