Install Plastic Debris Screen
CAUTION
Failure to utilize or reassemble debris screen
as designed could result in debris screen
failure and serious personal injury.
If engine has a plastic debris screen, snap screen onto
fan. Due to possibility of damaging posts during removal,
install retainers on different posts from which they were
removed. Start retainers by hand, then push them down
with a 13 mm (1/2”) socket until they lock. If engine has
a metal screen, it will be installed later.
Install Supports for Metal Debris Screen
1. If a metal debris screen is used, with threaded
individual supports, install a spacer washer on
external threads. Apply Loctite
®
242
®
(removable)
onto threads. Install four supports as shown.
2. Tighten supports with a torque wrench to 9.9 N·m
(88 in. lb.). Debris screen will be installed to supports
after blower housing is in place.
NOTE: Before installing fl ywheel make sure crankshaft
taper and fl ywheel hub are clean, dry, and
completely free of any lubricants. Presence of
lubricants can cause fl ywheel to be over
stressed and damaged when screw is torqued to
specifi cations.
NOTE: Make sure fl ywheel key is installed properly in
keyway. Flywheel can become cracked or
damaged if key is not properly installed.
1. Install woodruff key into keyway of crankshaft. Make
sure key is properly seated and parallel with shaft
taper.
2. Install fl ywheel onto crankshaft being careful not to
shift woodruff key.
3. Install screw and washer.
4. Use a fl ywheel strap wrench or holding tool to hold
fl ywheel. Torque screw securing fl ywheel to
crankshaft to 66.4 N·m (49 ft. lb.).
Install Flywheel Fan
NOTE: Position ears located at rear perimeter of fan in
recesses of fl ywheel.
1. Install fan onto fl ywheel using four screws.
2. Torque screws to 9.9 N·m (88 in. lb.).
Cylinder Head Components
B
C
D
E
G
K
F
H
I
J
L
M
N
O
P
A
A Valve B Stud C Gasket D Spark Plug
E Cap F Valve Stem Seal G Hydraulic Lifter H Retainer
I Valve Spring J Valve Spring Retainer K Push Rod L Valve Keeper
M Rocker Arm N Rocker Arm Pivot O Valve Cover O-ring P Valve Cover
Reassembly
76 24 690 06 Rev. CKohlerEngines.com
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