Kohler Command PRO CH440 Service Manual page 16

Specifi cations
CLEARANCE SPECIFICATIONS
Cylinder Bore
Bore I.D.
New
Max. Wear Limit
Max. Out-of-Round
Max. Taper
Cylinder Head
Max. Out-of-Flatness
Governor (Mechanical)
Governor Cross Shaft -to-
Crankcase Running Clearance
Governor Cross Shaft O.D.
New
Max. Wear Limit
Governor Gear Shaft -to-Governor
Gear Running Clearance
Governor Gear Shaft O.D.
New
Max. Wear Limit
Ignition
Spark Plug Gap
Module Air Gap
Piston, Piston Rings, and Piston Pin
Piston-to-Piston Pin Running
Clearance
Piston Pin Bore I.D.
New
Max. Wear Limit
Piston Pin O.D.
New
Max. Wear Limit
Top and Center Compression Ring
Side Clearance
New Bore
Used Bore (Max.)
Top Compression Ring End Gap
New Bore
Used Bore (Max.)
Center Compression Ring End
Gap
New Bore
Used Bore (Max.)
4 Values are in Metric units. Values in parentheses are English equivalents.
16
4
CH245/CH255
70.027/70.035 mm 70.020/70.035 mm
(2.7570/2.7573 in.) (2.7570/2.7573 in.)
70.200 mm (2.764 in.)
0.10 mm
(0.0039 in.)
0.013/0.075 mm
(0.0005/0.0029 in.)
5.955/5.980 mm
(0.2344/0.2354 in.)
5.85 mm
(0.2303 in.)
0.09/0.19 mm
(0.0035/0.0074 in.)
6.028/6.043 mm
(0.2373/0.2379 in.)
6.018 mm
(0.2369 in.)
0.009/0.016 mm (0.0003/0.0006 in.)
18.004/18.005 mm
(0.7088/0.7090 in.)
18.05 mm (0.7106 in.)
17.992/17.995 mm
(0.7083/0.7084 in.) 17.992/17.998 mm (0.7083/0.7084 in.)
17.95 mm (0.7067 in.)
0.04 mm (0.002 in.)
0.15 mm (0.006 in.)
0.325/0.400 mm (0.013/0.016 in.)
0.325/0.400 mm
(0.013/0.016 in.)
1.00 mm (0.039 in.)
KohlerEngines.com
CH260/CH270 CH395
78.000/78.015 mm
(3.0709/3.0714 in.)
78.185 mm
(3.0781 in.)
12.7 microns (0.0005 in.)
12.7 microns (0.0005 in.)
0.08 mm
(0.003 in.)
0.020/0.069 mm (0.0008/0.0027 in.)
5.942 mm
(0.2339 in.)
0.022/0.134 mm (0.0009/0.0053 in.)
6.016/6.028 mm (0.2368/0.2373 in.)
6.003 mm (0.2363 in.)
0.76 mm (0.030 in.)
0.254 mm (0.010 in.)
0.002/0.016 mm (0.0001/0.0006 in.)
18.000/18.008 mm
(0.7087/0.7090 in.)
0.07 mm
(0.003 in.)
0.11 mm
(0.004 in.)
0.250/0.400 mm (0.010/0.016 in.)
1.00 mm (0.039 in.)
0.650/0.800 mm
(0.026/0.032 in.)
CH440
89.000/89.015 mm
(3.5039/3.5045 in.)
89.185 mm
(3.5112 in.)
0.1 mm (0.0039 in.)
7.955/7.980 mm
(0.3132/0.3142 in.)
7.900 mm (0.3110 in.)
20.000/20.008 mm
(0.7874/0.7877 in.)
20.05 mm
(0.7894 in.)
19.992/19.998 mm
(0.7871/0.7873 in.)
19.95 mm
(0.7854 in.)
0.045 mm
(0.0018 in.)
0.10 mm
(0.004 in.)
0.640/0.800 mm
(0.025/0.032 in.)
1.50 mm (0.059 in.)
17 690 01 Rev. L