Q
Governor Cross
Shaft
R
Crankcase
S
Oil Pump Assembly
(Style B)
T
Outer Gerotor Gear
(Style B)
U
Oil Pump Cover
O-ring (Style B)
V
Spring (Style B)
W
Ball (Style B)
X
Oil Screen
(Style B)
Y
Oil Pan (Style B)
Remove Oil Pan Assembly
1. Remove screws securing oil pan to crankcase.
2. Locate splitting tabs cast into perimeter of closure
plate. Insert drive end of a 1/2 in. breaker bar
between splitting tab and crankcase and turn it to
loosen seal. Do not pry on sealing surfaces as this
can cause leaks.
Inspection
Inspect oil seal in oil pan and remove it if it is worn
or damaged. Refer to Install Oil Pan Oil Seal in
Reassembly for new oil seal installation.
Inspect main bearing surface for wear or damage (refer
to Specifi cations). Replace oil pan assembly if required.
Governor Gear Assembly
Governor Shaft Press Depth Details
C
B
A
A
Gear Shaft
B
19.40 mm (0.7638 in.)
C
34.0 mm (1.3386 in.) 33.5 mm (1.3189 in.)
Governor gear assembly is located inside oil pan.
If service is required, continue with Inspection,
Disassembly, and Reassembly.
Inspection
Inspect governor gear teeth. Replace gear if it is worn,
chipped, or if any teeth are missing. Inspect governor
weights. They should move freely in governor gear.
Crankcase Components
C
D
E
B
F
G
P
I
J
K
L
M
N
O
Q
R
A
H
Y
S
T
U
W
V
X
A
Oil Pan Seal
B
Oil Pan (Style A)
C
Gerotor Gears
(Style A)
D
Oil Pump Assembly
(Style A)
E
Governor Shaft
F
Governor Washer
G
Governor Gear
H
Governor Cup
I
Crankshaft
J
Connecting Rod
K
Piston
L
Piston Pin
M
Piston Pin Retainer
Clip
N
Piston Rings
O
Camshaft
P
Oil Pan Gasket
Disassembly/Inspection and Service
72
24 690 31 Rev. D
KohlerEngines.com
