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Disassembly/Inspection and Service
Crankcase Components
B
A
A
Oil Seal
E
Governor Gear
I
Spring
M
Oil Pick-Up
Q
Governor Cross Shaft
U
Connecting Rod
Remove Closure Plate
1. Remove screws securing closure plate to crankcase.
If a thick washer is installed under screw head in #10
location, and/or one silver (ground) screw is used,
(normally No. 4 or 6 position), note these special
assembly details for proper reassembly later.
2. Locate three splitting tabs, which are cast into
perimeter of closure plate. Insert drive end of a 1/2"
breaker bar between top splitting tab and crankcase.
Hold handle horizontal and pull it toward you to
break RTV seal. If necessary, pry at bottom splitting
tabs also. Do not pry on sealing surfaces, as this
could cause leaks. Carefully pull closure plate from
crankcase.
80
G
E
F
D
C
J
I
H
K
M
N
B
Closure Plate
F
Regulating Pin
J
Oil Pump Cover O-ring
N
Nipple
R
Camshaft Seal
V
Piston
KohlerEngines.com
Q
P
O
L
S
T
C
Governor Gear Shaft
G
Camshaft
K
Outer Gerotor Gear
O
Crankshaft
S
Piston Pin Retainer
W
Piston Ring Set
Inspection
Inspect oil seal in closure plate and remove it if it is worn
or damaged.
Inspect main bearing surface for wear or damage.
Replace closure plate assembly if required.
R
A
V
U
Locking Tab Thrust
D
Washer
H
L
Oil Pump Assembly
P
Dowel Pin
T
Piston Pin
66 690 14 Rev. A
W
Ball
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