73
Reassembly
32 690 03 Rev. E KohlerEngines.com
Install Flywheel and Fan
CAUTION
Damaging Crankshaft and Flywheel can
cause personal injury.
Using improper procedures can lead to broken
fragments. Broken fragments could be thrown from
engine. Always observe and use precautions and
procedures when installing ywheel.
NOTE: Before installing ywheel, make sure crankshaft
taper and ywheel hub are clean, dry, and
completely free of lubricants. Presence of
lubricants can cause ywheel to be overstressed
and damaged when screw is torqued to
specications.
NOTE: Make sure ywheel key is installed properly in
keyway. Flywheel can become cracked or
damaged if key is not installed properly.
1. Install ywheel key into keyway of crankshaft. Make
sure key is properly seated and parallel with shaft
taper.
2. Install ywheel onto crankshaft being careful not to
shift ywheel key.
3. Install fan onto ywheel, so locating pins t into
corresponding recesses. Drive 2 retainers down
completely.
4. Install fan mounting plate onto fan, aligning 4
cutouts, followed by heavy at washer and screw.
5. Use a ywheel strap wrench or holding tool to hold
ywheel. Torque screw securing ywheel to
crankshaft to 74.5 N·m (55 ft. lb.).
Install Breather Reed and Breather Reed Cover
Breather Reed Cover Sealant
A
A Sealant Bead
NOTE: RTV sealant should be allowed to cure a
minimum of 1 hour before engine is started.
1. Install breather reed, followed by retainer over
passage hole and mounting hole in crankcase. Hold
in position and secure with mounting stud. Torque
stud to 6.2 N·m (55 in. lb.) into a new, cored hole, or
4.0 N·m (35 in. lb.) into a used hole.
2. Invert breather reed cover and apply a 1.5 mm
(1/16 in.) bead of RTV sealant to perimeter ange of
cover as shown. Use Loctite
®
5900
TM
or 5910
TM
.
3. Immediately install breather reed cover over
mounting stud and onto crankcase. Do not allow
RTV sealant to come in contact with breather reed,
or reed sealing surface.
4. Secure with a new sealing washer and M5 nut.
Torque nut to 1.3 N·m (12 in. lb.). Check that a
complete seal has occurred by RTV sealant being
squeezed out around entire ange perimeter.
Install Stator and Backing Plate
1. Apply pipe sealant with Teon
®
(Loctite
®
PST
®
592
TM
or equivalent) to stator mounting holes.
2. Position stator aligning mounting holes so leads are
at bottom, toward crankcase.
3. Install and torque screws to 8.8 N·m (78 in. lb.).
4. Install backing plate. Secure with screws. Torque
screws in a crisscross pattern to 7.3 N·m (65 in. lb.).
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