Engine Service Manual

73
Disassembly/Inspection and Service
32 690 03 Rev. I KohlerEngines.com
Remove Debris Screen, Fan, and Flywheel
NOTE: Always use a fl ywheel strap wrench or fl ywheel
holding tool (see Tools and Aids) to hold fl ywheel
when loosening or tightening fl ywheel and fan
retaining fasteners. Do not use any type of bar
or wedge between fi ns of cooling fan, as fi ns
could become cracked or damaged.
NOTE: Always use a puller to remove fl ywheel from
crankshaft. Do not strike crankshaft or fl ywheel,
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 fl ywheel to crankshaft.
3. Lift cooling fan to disengage 2 drive pins and remove
it from fl ywheel. Two plastic retainers may remain in
fan.
4. Remove fl ywheel from crankshaft by pulling from
under ring gear with large gear puller.
5. Remove fl ywheel key from crankshaft.
Flywheel Inspection
Inspect fl ywheel for cracks, and fl ywheel keyway for
damage. Replace fl ywheel if it is cracked. Replace
fl ywheel, crankshaft, and key if fl ywheel 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
fl ywheel 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 Breather Reed Assembly
1. RTV sealant is used between breather reed cover
and crankcase. Remove nut and sealing (fl at)
washer securing breather reed cover to crankcase.
Carefully pry under small tab of cover fl ange 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
O
N
P
V
T
S
R
K
L
M
H
G
F
A
I
J
Q
U
A
E
D
B
C
A
Governor Cross
Shaft
B Lower Washer
C Nylon Washer D
Push-on Retaining
Ring
E E-Clip F Crankshaft
G Valve Tappets H Camshaft
I Regulating Pin J Shaft