Service Manual

61
Reassembly
66 690 01 Rev. C KohlerEngines.com
Checking/Setting Camshaft End Play
1. Install shim removed during disassembly onto
camshaft.
2. Position end play tool on camshaft.
3. Apply pressure on end play checking tool (pushing
camshaft toward crankshaft). Use a feeler gauge to
measure end play between shim and end play tool.
Camshaft end play should be 0.076/0.127 mm
(0.003/0.005 in.).
4. If camshaft end play is not within specifi ed range,
remove original shim and reinstall end play tool. Use
a feeler gauge to determine clearance between
camshaft and tool. Subtract 0.100 mm (0.004 in)
from measured clearance to obtain required shim
thickness. Refer to table below and install shim that
matches calculated thickness. Repeat steps 1-3 to
verify that correct end play exists.
Camshaft Shims
White: 0.69215/0.73025 mm (0.02725/0.02875 in.)
Blue: 0.74295/0.78105 mm (0.02925/0.03075 in.)
Red: 0.79375/0.83185 mm (0.03125/0.03275 in.)
Yellow: 0.84455/0.88265 mm (0.03325/0.03475 in.)
Green: 0.89535/0.99345 mm (0.03525/0.03675 in.)
Gray: 0.94615/0.98425 mm (0.03725/0.03875 in.)
Black: 0.99695/1.03505 mm (0.03925/0.04075 in.)
Oil Pump Assembly
Oil pump is mounted to inside of closure plate. If
service was required, and oil pump was removed, refer
to assembly procedures under Oil Pump Assembly in
Reassembly.
Governor Assembly
Governor assembly is located inside closure plate. If
service was required, and governor was removed, refer
to assembly procedures under Governor Assembly in
Reassembly.
Thrust Bearing, Washer and Shim
Some specifi cations use a thrust bearing, thrust washer,
and shim to control end play of crankshaft. If these
items were noted during disassembly, make sure they
were reinstalled in proper sequence, as illustrated. A
different procedure must be followed to check and adjust
crankshaft end play on these models.
Race for thrust bearing presses loosely into closure
plate. If it is not already installed, push it into crankshaft
bore inside closure plate. Pack thrust bearing with heavy
grease and stick bearing into race. Wipe some grease
on face of thrust washer and stick it onto thrust bearing.
Wipe some grease on face of original shim and stick it
onto thrust washer.
Install closure plate onto crankcase without applying
RTV sealant and secure it with only two or three
fasteners at this time. Use a dial indicator to check
crankshaft end play. End play should be 0.070/0.590 mm
(0.0027/0.0232 in.). Shims are available in fi ve color-
coded thicknesses listed below if adjustment is needed.
Crankshaft End Play Shims
Remove closure plate. If end play requires adjustment,
remove original shim and install appropriate size
replacement.
BLUE 0.48-0.52 mm (0.050 mm Nominal)
(0.019 in.)
BLACK 0.667-0.705 mm (0.686 mm Nominal)
(0.27 in.)
GREEN 0.8366-0.9127 mm (0.8750 mm Nominal)
(0.34 in.)
YELLOW 1.9652-1.1414 mm (1.1033 mm Nominal)
(0.043 in.)
RED 1.2938-1.3700 mm (1.3319 mm Nominal)
(0.052 in.)
Install Closure Plate Oil Seal
Cylinder Head Torque Sequence
A
B
C
A Oil Seal B 8.0 mm (0.315 in.)
C Closure Plate
1. Check to make sure that there are no nicks or burrs
in crankshaft bore of closure plate.
2. Apply a light coat of engine oil to outside diameter of
oil seal.
3. Drive oil seal into closure plate using a seal driver.
Make sure oil seal is installed straight and true in
bore to depth shown.