Kohler command pro CH742 Service Manual page 58

Reassembly
Thrust Bearing, Washer and Shim
A
C
D
A Thrust Shim
Needle Thrust
C
Bearing
E Closure Plate
Some specifi cations use a needle type thrust bearing,
thrust washer and shim spacer to control end play of
crankshaft. If these items are noted during disassembly,
make sure they are reinstalled in sequence shown. A
different procedure will have to 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 spacer and
stick it onto thrust washer.
Install closure plate onto crankcase without applying
RTV sealant and secure it with only 2 or 3 fasteners at
this time. Use a dial indicator to check crankshaft end
play. End play should be 0.070/1.190 mm
(0.0028/0.0468 in.). Shim spacers are available in 3
color coded thicknesses if adjustment is needed.
Clearance Specifi cations-Crankshaft End Play Shims
Green
(0.8750 mm/0.034 in. Nominal)
Yellow
(1.1033 mm/0.043 in. Nominal)
Red
(1.3319 mm/0.052 in. Nominal)
Remove closure plate. If end play requires adjustment,
remove original spacer and install appropriate size shim
spacer in its place. Then follow procedure under Install
Closure Plate Assembly.
58
B
E
B Thrust Washer
D Bearing Race
0.8366-0.9127 mm
1.0652-1.1414 mm
1.2938-1.3700 mm
KohlerEngines.com
Install Closure Plate Oil Seal
Oil Seal Depth
A Oil Seal
1. Check to make sure 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.
A
B
Seal Depth
B
8.0 mm (0.314 in.)
24 690 34 Rev. D