Kohler Command CV25 Service Manual

CLEARANCE SPECIFICATIONS
3
CV17 CV18/CV20/
CV22/
CV620/CV621/
CV640/CV641
CV22/CV23/
CV620/
CV640/
CV670/CV680
CV25/
CV730/
CV740
CV750
Piston, Piston Rings, and Piston Pin (Style B continued)
Top Compression Ring End Gap
New Bore 0.100/
0.279 mm
(0.0039/
0.0110 in.)
0.189/0.277 mm
(0.0074/0.0109 in.)
Used Bore (Max) 0.490 mm
(0.0192 in.)
0.531 mm (0.0209 in.)
Middle Compression Ring End Gap
New Bore 1.400/
1.679 mm
(0.0551/
0.0661 in.)
1.519/1.797 mm
(0.0598/0.0708 in.)
Used Bore (Max) 1.941 mm
(0.0764 in.)
2.051 mm (0.0808 in.)
Thrust Face O.D.
New 79.966 mm
(3.1483 in.)
9
82.978 mm
(3.2668 in.)
8
Max. Wear Limit 79.821 mm
(3.1426 in.)
9
82.833 mm
(3.2611 in.)
8
Piston Thrust Face-to-Cylinder Bore Running
Clearance
New
0.025/
0.068 mm
(0.0010/
0.0027 in.)
9
0.019/0.062 mm
(0.0007/0.0024 in.)
8
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
8
Measure 6 mm (0.2362 in.) above bottom of piston skirt at right angles to piston pin.
9
Measure 13 mm (0.5118 in.) above bottom of piston skirt at right angles to piston pin.
Specications
14
24 690 07 Rev. HKohlerEngines.com

Kohler Command CV25 Specifications

General

Brand	Kohler
Model	Command CV25
Category	Engine
Language	English