16
Specifi cations
KohlerEngines.com
22 690 01 Rev. --
CLEARANCE SPECIFICATIONS
3
KS530
KS540
KS590
KS595
Piston, Piston Rings, and Piston Pin
Piston-to-Piston Pin Running Clearance
0.007/0.017 mm (0.0003/0.0007 in.)
Pin Bore I.D.
New
Max. Wear Limit
20.007/20.012 mm (0.7877/0.7879 in.)
20.025 mm (0.7884 in.)
Pin O.D.
New
Max. Wear Limit
19.995/20.000 mm (0.7872/0.7874 in.)
19.994 mm (0.7872 in.)
Top Compression Ring-to-Groove Side Clearance
0.025/0.065 mm (0.0010/0.0026 in.)
Middle Compression Ring-to-Groove Side
Clearance
0.040/0.080 mm (0.0016/0.0032 in.)
Oil Control Ring-to-Groove Side Clearance
0.090/0.210 mm (0.0035/0.0083 in.)
Top Compression Ring End Gap New Bore
New Bore
Used Bore (max.)
0.150/0.400 mm (0.0059/0.0157 in.)
0.770 mm (0.0300 in.)
Middle Compression Ring End Gap New Bore
New Bore
Used Bore (max.)
1.000/1.250 mm (0.0394/0.0492 in.)
1.504 mm (0.0592 in.)
Thrust Face O.D.
7
New
93.975/93.989 mm (3.6998/3.7003 in.)
Max. Wear Limit
93.875 mm (3.6960 in.)
Piston Thrust Face-to-Cylinder Bore
7
Running
Clearance
0.034/0.073 mm (0.0013/0.0029 in.)
Valves and Valve Tappets
Valve Lash
8
0.101/0.152 mm (0.004/0.006 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
6.038/6.058 mm (0.2377/0.2385 in.)
6.135 mm (0.2415 in.)
Exhaust Valve Guide I.D.
New
Max. Wear Limit
6.038/6.058 mm (0.2377/0.2385 in.)
6.160 mm (0.2425 in.)
Intake Valve Minimum Lift
9.4 mm (0.370 in.)
Exhaust Valve Minimum Lift
9.3 mm (0.366 in.)
Nominal Valve Seat Angle
45°
3
Values are in Metric units. Values in parentheses are English equivalents.
7
Measure 7.5 mm (0.2953 in.) above bottom of piston skirt at right angles to piston pin.
8
Check valve lash every 200 hours, adjust as required.