64
Reassembly
KohlerEngines.com 16 690 01 Rev. --
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 fl ywheel.
NOTE: Before installing fl ywheel, make sure crankshaft
taper and fl ywheel hub are clean, dry, and
completely free of lubricants. Presence of
lubricants can cause fl ywheel to be overstressed
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 installed properly.
1. Install fl ywheel 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 fl ywheel key.
3. Install fan onto fl ywheel, so locating pins fi t into
corresponding recesses. Drive 2 retainers down
completely.
4. Install fan mounting plate or drive cup (if equipped)
onto fan, aligning 4 cutouts, followed by heavy fl at
washer and screw.
5. Use a fl ywheel strap wrench or holding tool to hold
fl ywheel. Torque screw securing fl ywheel to
crankshaft to 74.5 N·m (55 ft. lb.).
Install Breather Reed and Outer Cover
Breather 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 fl ange of
cover as shown. Use Loctite
®
5900™ or 5910™.
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 fl ange perimeter.
Install Stator and Backing Plate
1. Apply pipe sealant with Tefl on
®
(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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