Kohler Confidant ZT710 Service Manual page 11

CLEARANCE SPECIFICATIONS
Piston, Piston Rings, and Piston Pin
Piston-to-Piston Pin Running Clearance
Pin Bore I.D.
New
Max. Wear Limit
Pin O.D.
New
Max. Wear Limit
Top Compression Ring-to-Groove Side Clearance
Middle Compression Ring-to-Groove Side Clearance
Oil Control Ring-to-Groove Side Clearance
Top Compression Ring End Gap
New Bore
Used Bore (Max.)
Center Compression Ring End Gap
New Bore
Used Bore (Max.)
7
Thrust Face O.D.
New
Max. Wear Limit
Piston Thrust Face-to-Cylinder Bore
New
Valves and Valve Tappets
Clearance
Valve Tappet to Crankcase Running Clearance
Intake Valve Stem-to-Valve Guide Running Clearance
Exhaust Valve Stem-to-Valve Guide Running Clearance
Intake Valve Guide I.D.
New
Max. Wear Limit
Exhaust Valve Guide I.D.
New
Max. Wear Limit
Valve Guide Reamer Size
Standard
0.25 mm O.S.
Intake Valve Minimum Lift
Exhaust Valve Minimum Lift
Nominal Valve Face Angle
3 Values are in Metric units. Values in parentheses are English equivalents.
7
Measure 6 mm (0.2362 in.) above bottom of piston skirt at right angles to piston pin.
16 690 01 Rev. --
3
7 Running Clearance
KohlerEngines.com
ZT710 ZT720
0.006/0.017 mm (0.0002/0.0007 in.)
17.006/17.012 mm (0.6695/0.6698 in.)
17.025 mm (0.6703 in.)
16.995/17.000 mm (0.6691/0.6693 in.)
16.994 mm (0.6691 in.)
0.030/0.070 mm (0.0010/0.0026 in.)
0.030/0.070 mm (0.0010/0.0026 in.)
0.060/0.190 mm (0.0022/0.0073 in.)
0.189/0.277 mm (0.0074/0.0109 in.)
0.531 mm (0.0209 in.)
1.519/1.797 mm (0.0598/0.0708 in.)
2.051 mm (0.0808 in.)
82.978 mm (3.2668 in.)
82.833 mm (3.2611 in.)
0.019/0.062 mm (0.0007/0.0024 in.)
0.127/0.178 mm (0.0050/0.0070 in.)
0.013/0.073 mm (0.0005/0.0029 in.)
0.040/0.0780 mm (0.0016/0.0031 in.)
0.052/0.090 mm (0.0020/0.0035 in.)
7.040/7.060 mm (0.2772/0.2780 in.)
7.140 mm (0.2811 in.)
7.040/7.060 mm (0.2772/0.2780 in.)
7.160 mm (0.2819 in.)
7.050 mm (0.2776 in.)
7.300 mm (0.2874 in.)
8.500 mm (0.3346 in.)
8.500 mm (0.3346 in.)
45°
Specifi cations
ZT730 ZT740
11