Kohler Command PRO CH23 - Clearance Specifications (Valves and Lifters)

Specifi cations
1324 690 06 Rev. K KohlerEngines.com
CLEARANCE SPECIFICATIONS
3
CH18/CH20/
CH22/
CH620/CH621/
CH640/CH641
CH22/CH23/
CH620/
CH640/
CH670/CH680
CH25/
CH730/
CH740
CH750
Valves and Valve Lifters
Hydraulic Valve Lifter to Crankcase Running Clearance 0.0241/0.0501 mm (0.0009/0.0020 in.)
Intake Valve Stem-to-Valve Guide Running Clearance 0.038/0.076 mm (0.0015/0.0030 in.)
Exhaust Valve Stem-to-Valve Guide Running Clearance 0.050/0.088 mm (0.0020/0.0035 in.)
Intake Valve Guide I.D.
New
Max. Wear Limit
7.038/7.058 mm (0.2771/0.2779 in.)
7.134 mm (0.2809 in.)
Exhaust Valve Guide I.D.
New
Max. Wear Limit
7.038/7.058 mm (0.2771/0.2779 in.)
7.159 mm (0.2819 in.)
Valve Guide Reamer Size
Standard
0.25 mm O.S
7.048 mm (0.2775 in.)
7.298 mm (0.2873 in.)
Intake Valve Minimum Lift 8.07 mm (0.3177 in.)
Exhaust Valve Minimum Lift 8.07 mm (0.3177 in.)
Nominal Valve Seat Angle 45°
3
Values are in Metric units. Values in parentheses are English equivalents.