Kohler Command PRO CH260 [14/100] Specifi cations

Kohler Command PRO CH270 [14/100] Specifi cations
14
Speci cations
KohlerEngines.com 17 690 01 Rev. J
CLEARANCE SPECIFICATIONS
3
CH260/CH270 CH395 CH440
Connecting Rod
Crankpin End I.D. @ 21°C (70°F)
New 30.020/30.030 mm
(1.1819/1.1823 in.)
33.020/33.030 mm
(1.3000/1.3004 in.)
37.020/37.030 mm
(1.4575/1.4579 in.)
Max. Wear Limit 30.106 mm
(1.185 in.)
33.07 mm
(1.302 in.)
37.08 mm
(1.460 in.)
Connecting Rod-to-Crankpin Side Clearance
New 0.58/0.60 mm
(0.023/0.024 in.)
0.73 mm
(0.029 in.)
0.56 mm
(0.022 in.)
Max. Wear Limit 1.10 mm
(0.043 in.)
1.36 mm
(0.054 in.)
1.06 mm
(0.042 in.)
Connecting Rod-to-Piston Pin Running Clearance 0.008/0.025 mm
(0.0003/0.0010 in.)
0.006/0.028 mm
(0.0002/0.0011 in.)
0.008/0.025 mm
(0.0003/0.0010 in.)
Piston Pin End I.D. @ 21°C (70°F)
New 18.006/18.017 mm
(0.7089/0.7093 in.)
20.006/20.017 mm
(0.7876/0.7881 in.)
Max. Wear Limit 18.08 mm (0.712 in.) 20.03 mm
(0.789 in.)
Crankcase
Governor Cross Shaft Bore I.D.
New
6.000/6.024 mm
(0.2362/0.2372 in.)
8.000/8.024 mm (0.3150/0.3159 in.)
Max. Wear Limit 6.037 mm
(0.2377 in.)
8.075 mm (0.3179 in.)
Crankshaft
End Play (free) 0.0508/0.254 mm (0.002/0.010 in.)
Ball Bearing Internal Clearance 0.003/0.025 mm
(0.0001/0.0010 in.)
0.005/0.020 mm
(0.0002/0.0008 in.)
0.006/0.020 mm
(0.0002/0.0008 in.)
Crankshaft O.D. (new)
PTO end 24.975/24.989 mm
(0.9833/0.9838 in.)
29.975/29.989 mm
(1.1801/1.1807 in.)
34.975/34.989 mm
(1.3770/1.3775 in.)
Flywheel end 30.014/30.027 mm
(1.1817/1.1822 in.)
35.009/35.027 mm
(1.3783/1.3790 in.)
Connecting Rod Journal O.D.
New 29.975/29.985 mm
(1.1801/1.1805 in.)
32.975/32.985 mm
(1.2982/1.2986 in.)
36.975/36.985 mm
(1.4557/1.4561 in.)
Max. Wear Limit 29.924 mm
(1.1781 in.)
32.92 mm
(1.2961 in.)
36.92 mm
(1.4535 in.)
Max. Taper
Max. Out-of-Round
2.5 microns (0.0001 in.)
12.7 microns (0.0005 in.)
Width 25.02/25.08 mm
(0.9850/0.9874 in.)
30.30/30.36 mm
(1.1930/1.1953 in.)
28.30/28.36 mm
(1.1142/1.1165 in.)
Runout (either end) 0.025 mm (0.001 in.)
Main Bearing I.D. (Crankcase/Closure Plate)
New (installed) 24.992/25.000 mm
(0.9839/0.9842 in.)
29.990/30.000 mm
1.1807/1.1811 in.)
34.988/35.000 mm
(1.3775/1.3779 in.)
Cylinder Bore
Bore I.D.
New
70.020/70.035 mm
(2.7570/2.7573 in.)
78.000/78.015 mm
(3.0709/3.0714 in.)
89.000/89.015 mm
(3.5039/3.5045 in.)
Max. Wear Limit 70.200 mm
(2.764 in.)
78.185 mm
(3.0781 in.)
89.185 mm
(3.5112 in.)
Max. Out-of-Round
Max. Taper
12.7 microns (0.0005 in.)
12.7 microns (0.0005 in.)
3
Values are in Metric units. Values in parentheses are English equivalents.

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