Kohler Command CV740 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 A continued)
Top and Middle Compression Ring End Gap
New Bore
Top Ring
Middle Ring
0.180/
0.380 mm
(0.0071/
0.0150 in.)
0.180/
0.440 mm
(0.0071/
0.0173 in.)
0.25/
0.45 mm
(0.0098/
0.0177 in.)
---
---
0.18/
0.46 mm
(0.0071/
0.0181 in.)
---
---
0.25/0.56 mm
(0.0100/0.0224 in.)
---
---
Used Bore (Max.)
Top Ring
Middle Ring
0.70 mm
(0.028 in.)
0.90 mm
(0.035 in.)
0.77 mm
(0.030 in.)
---
---
0.80 mm
(0.0315 in.)
---
---
0.94 mm (0.037 in.)
---
---
Thrust Face O.D.
8
New 72.966/
72.984 mm
(2.8727/
2.8734 in.)
76.943/
76.961 mm
(3.0292/
3.0299 in.)
79.943/
79.961 mm
(3.1473/
3.1480 in.)
82.949/
82.967 mm
(3.2656/
3.2664 in.)
Max. Wear Limit 72.839 mm
(2.8677 in.)
76.816 mm
(3.0242 in.)
79.816 mm
(3.1423 in.)
82.822 mm (3.2606 in.)
Piston Thrust Face-to-Cylinder Bore
8
Running
Clearance
New 0.022/
0.065 mm
(0.0009/
0.0026 in.)
0.039/0.082 mm
(0.0015/0.0032 in.)
Piston Style B
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.)
Top Compression Ring-to-Groove Side
Clearance 0.030/0.070 mm (0.001/0.0026 in.)
Middle Compression Ring-to-Groove Side
Clearance 0.030/0.070 mm (0.001/0.0026 in.)
Oil Control Ring-to-Groove Side Clearance 0.060/0.190 mm (0.0022/0.0073 in.)
3
Values are in Metric units. Values in parentheses are English equivalents
8
Measure 6 mm (0.24 in.) above bottom of piston skirt at right angles to piston pin.
Specications
1324 690 07 Rev. H KohlerEngines.com

Kohler Command CV740 Specifications

General

Brand	Kohler
Model	Command CV740
Category	Engine
Language	English