68
Reassembly
KohlerEngines.com
32 690 01 Rev. D
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 flywheel.
NOTE: Before installing flywheel, make sure crankshaft
taper and flywheel hub are clean, dry, and
completely free of lubricants. Presence of
lubricants can cause flywheel to be overstressed
and damaged when screw is torqued to
specifications.
NOTE: Make sure flywheel key is installed properly in
keyway. Flywheel can become cracked or
damaged if key is not installed properly.
1. Install woodruff key into keyway of crankshaft. Make
sure key is properly seated and parallel with shaft
taper.
2. Install flywheel onto crankshaft being careful not to
shift woodruff key.
3. Install fan onto flywheel, so locating pins fit into
corresponding recesses.
4. Install fan mounting plate onto fan, aligning 4
cutouts, followed by heavy flat washer and screw.
5. Use a flywheel strap wrench or holding tool to hold
flywheel. Torque screw securing flywheel to
crankshaft to 74.5 N·m (55 ft. lb.).
Install Ignition Modules
1. Rotate flywheel to position magnet away from
ignition module bosses.
2. DSAI or DSAM ignition system ignition modules are
installed in similar ways with tabs out.
Fixed ignition system ignition modules are installed
with spark plug lead from module always away from
cylinder. On cylinder 1, single kill tab should be up/
towards you. On cylinder 2, single kill tab should be
down/away from you.
3. Install each ignition module to crankcase bosses
with screws. Slide modules up as far away from
flywheel as possible and snug screws to hold them
in position.
4. Rotate flywheel to position magnet directly under 1
ignition module.
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 housing (cover) and apply a 1.5 mm
(1/16 in.) bead of RTV sealant to perimeter flange of
outer housing (cover) as shown. Use Loctite
®
5900
or 5910.
3. Immediately install housing 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 flange perimeter.
5. Attach breather hose to housing if disconnected
earlier. Make sure cover is between formed lips of
breather hose. Position hose so opposite end is
away from crankshaft.
Install Stator and Backing Plate
1. Apply pipe sealant with Teflon
®
(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 6.2 N·m (55 in. lb.).
4. Route stator leads in crankcase recess, then install
backing plate. Secure with screws. Torque screws in
a crisscross pattern to 7.3 N·m (65 in. lb.).