Kohler Command PRO EFI ECV630 [19/148] Specifi cations

Kohler Command PRO EFI ECV630 [19/148] Specifi cations
Specifi cations
1924 690 02 Rev. M KohlerEngines.com
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.
CLEARANCE
SPECIFICATIONS
3
ECV630-ECV680 ECV730-ECV749 CV26 CV735 CV745
Piston, Piston Rings, and Piston Pin
Piston Style A
Piston-to-Piston Pin Running
Clearance
0.006/0.017 mm (0.0002/0.0007 in.)
Pin Bore I.D.
New
Max. Wear Limit
17.006/17.012 mm (0.6695/0.6698 in.)
17.025 mm (0.6703 in.)
Pin O.D.
New
Max. Wear Limit
16.995/17.000 mm (0.6691/0.6693 in.)
16.994 mm (0.6691 in.)
Top Compression Ring-to-
Groove Side Clearance
0.050/0.095 mm (0.0019/0.0037 in.) 0.025/0.048 mm (0.0010/0.0019 in.)
Middle Compression Ring-to-
Groove Side Clearance
0.030/0.075 mm (0.0012/0.00307 in.) 0.015/0.037 mm (0.0006/0.0015 in.)
Oil Control Ring-to-Groove
Side Clearance
0.010/0.011 mm (0.0004/0.0043 in.) 0.026/0.176 mm (0.0010/0.0070 in.)
Top and Middle Compression
Ring End Gap
New Bore 0.25/0.56 mm (0.010/0.022 in.)
Used Bore (Max.) 0.80 mm (0.0315 in.) 0.94 mm (0.037 in.)
Thrust Face O.D.
7
79.943/79.961 mm
(3.1473/3.1480 in.)
82.949/82.967 mm (3.2657/3.2664 in.)
Max. Wear Limit 79.816 mm
(3.1423 in.)
82.822 mm (3.2606 in.)
Piston Thrust Face-to-Cylinder
Bore
7
Running Clearance
New 0.039/0.082 mm (0.0015/0.0032 in.)
Piston Style B
Piston-to-Piston Pin Running
Clearance 0.006/0.017 mm (0.0002/0.0007 in.)
Pin Bore I.D.
New
Max. Wear Limit
17.006/17.012 mm (0.6695/0.6698 in.)
17.025 mm (0.6703 in.)
Pin O.D.
New
Max. Wear Limit
16.995/17.000 mm (0.6691/0.6693 in.)
16.994 mm (0.6691 in.)
Top Compression Ring-to-
Groove Side Clearance
0.030/0.070 mm (0.001/0.0026 in.)
Middle Compression Ring-to-
Groove Side Clearance
Oil Control Ring-to-Groove Side
Clearance 0.060/0.190 mm (0.0022/0.0073 in.)

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