58
Disassembly/Inspection and Service
KohlerEngines.com
32 690 01 Rev. D
Remove Debris Screen, Fan, and Flywheel
NOTE: Always use a flywheel strap wrench or flywheel
holding tool (see Tools and Aids) to hold flywheel
when loosening or tightening flywheel and fan
retaining fasteners. Do not use any type of bar
or wedge between fins of cooling fan, as fins
could become cracked or damaged.
NOTE: Always use a puller to remove flywheel from
crankshaft. Do not strike crankshaft or flywheel,
as these parts could become cracked or
damaged. Striking puller or crankshaft can
cause crank gear to move, affecting crankshaft
endplay.
1. Unsnap debris screen from cooling fan.
2. Remove retaining screw, washer, and fan mounting
plate, securing fan and flywheel to crankshaft.
3. Carefully lift cooling fan to disengage 2 drive pins
and remove it from flywheel.
4. Remove flywheel from crankshaft using a puller.
5. Remove woodruff key.
Flywheel Inspection
Inspect flywheel for cracks, and flywheel keyway for
damage. Replace flywheel if it is cracked. Replace
flywheel, crankshaft, and key if flywheel key is sheared
or keyway is damaged.
Inspect ring gear for cracks or damage. Kohler does
not provide ring gears as a serviceable part. Replace
flywheel if ring gear is damaged.
Remove Backing Plate and Stator
1. Remove mounting screws and backing plate from
crankcase.
2. Remove screws and stator. Note routing of stator
leads.
Remove Outer Breather Assembly
1. RTV sealant is used between outer breather cover
and crankcase. Remove nut and sealing (flat)
washer securing breather cover to crankcase.
Carefully pry under small tab of cover flange to
separate and remove. Do not bend or distort cover.
2. Unscrew and remove mounting stud, retainer and
breather reed.
Crankshaft/Governor Gear/Oil Pump Components
K
J
L
O
Q
P
R
G
H
I
D
C
B
A
E
F
M
N
1
2
S
A
Governor Cross
Shaft
B
Crankshaft
C
Valve Tappets
D
Camshaft
E
Regulating Pin
F
Shaft
G
Governor Gear
H
Locking Tab Thrust
Washer
I
Oil Pan
J
Drain Plug
K
Oil Seal
L
Oil Feed Tube
(Filter to Pan)
M
Oil Pump
N
Gerotor Gears
O
Oil Feed Tube
(Oil Pump Outlet)
P
O-Rings
Q
Oil Sentry
™
R
Oil Pump Torque
S
Retaining Ring