Kohler RH255, Руководство по обслуживанию

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9
Speci fi cations
18 690 06 Rev. -- KohlerEngines.com
CLEARANCE SPECIFICATIONS 3 RH255, RH265
Ignition
Spark Plug Gap 0.76 mm (0.030 in.)
Module Air Gap 0.254 mm (0.0100 in.)
Piston, Piston Rings, and Piston Pin
Piston-to-Piston Pin Running Clearance 0.006/0.018 mm (0.0002/0.0007 in.)
Piston Pin Bore I.D.
New
Max. Wear Limit
18.002/18.008 mm (0.7087/0.7090 in.)
18.05 mm (0.7107 in.)
Piston Pin O.D.
New
Max. Wear Limit
17.990/17.996 mm (0.7083/0.7085 in.)
17.95 mm (0.7067 in.)
Top Compression Ring Side Clearance
New Bore
Used Bore (max.)
0.030/0.070 mm (0.0012/0.0028 in.)
0.15 mm (0.0059 in.)
Center Compression Ring Side Clearance
New Bore
Used Bore (max.)
0.020/0.060 mm (0.0008/0.0024 in.)
0.15 mm (0.0059 in.)
Top Compression Ring End Gap
New Bore
Used Bore (max.)
0.147/0.344 mm (0.0058/0.0136 in.)
1.00 mm (0.0394 in.)
Center Compression Ring End Gap
New Bore
Used Bore (max.)
0.347/0.594 mm (0.0137/0.0234 in.)
1.50 mm (0.0591 in.)
Top and Center Compression Ring Width
New Bore
Used Bore (max.)
1.47/1.49 mm (0.0579/0.0587 in.)
1.35 mm (0.0531 in.)
Oil Control Ring-to-Groove Side Clearance 0.040/0.200 mm (0.0016/0.0079 in.)
Piston Thrust Face O.D. 7
New
Max. Wear Limit
67.965/67.985 mm (2.6758/2.6766 in.)
67.85 mm (2.6713 in.)
Piston Thrust Face-to-Cylinder Bore Running Clearance
New 0.030/0.065 mm (0.0012/0.0026 in.)
3
Values are in Metric units. Values in parentheses are English equivalents.
7
Measure 15 mm (0.5905 in.) above bottom of piston skirt at right angles to piston pin.