43
Reassembly
18 690 01 Rev. B KohlerEngines.com
NOTE: Make sure engine is assembled using all
specifi ed torque values, tightening sequences,
and clearances. Failure to observe specifi cations
could cause severe engine wear or damage.
Always use new gaskets.
Install Crankcase Bearings and Oil Seals
NOTE: Oil bearings liberally with engine oil when
installing.
NOTE: In steps 3 and 4, position oil seals with
manufacturer’s identifi cation marks visible and
facing you.
1. Make sure there are no nicks, burrs, or damage in
bores for bearings. Crankcase and closure plate
must be clean.
2. Use an arbor press to make sure bearings are
installed straight into their respective bore, until fully
seated.
3. Using an appropriate seal driver, install oil seal into
closure plate to a depth of 5.5 mm (0.217 in.) from
outer surface.
4. Using an appropriate seal driver, install oil seal into
crankcase to a depth of 0.0-1.0 mm (0.0-0.039 in.)
from outer surface.
Crankcase Components
N
S
C
B
A
D
E
F
I
K
J
L
M
G
A
T
U
O
H
P
R
Q
A Oil Seal B Closure Plate Bearing C Closure Plate D Gasket
E Camshaft F Crankshaft G
Oil Sentry
™
Float
Switch
H End Cap
I Connecting Rod J Piston Pin Retainer K Piston Pin L Piston
M Piston Ring Set N Tappet O Governor Cup P Governor Washer
Q Governor Shaft R Governor Gear S Governor Cross Shaft T Crankcase Bearing
U Dowel Pin V Oil Seal Depth W Outer Surface
A
V
W
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