86
Reassembly
24 690 31 Rev. D
KohlerEngines.com
Install Breather Cover and Inner Baffl
es
Torque Sequence
1&5
2
3
4
1. Be sure sealing surfaces of crankcase and breather
cover are clean of old gasket material. Do not scrape
surfaces as this could result in leakage. Use a new
gasket when installing breather cover.
2. Check to make sure there are no nicks or burrs on
sealing surfaces.
3. Position breather gasket and cover on crankcase.
Install screws in locations 3 and 4. Finger tighten at
this time.
4. Install inner baffl es using remaining screws and
fi nger tighten. Do not torque screws at this time; they
will be tightened after blower housing.
Install Oil Temperature Sensor
NOTE: Ensure part is clean, undamaged and free of
debris and make sure electrical connector has
seal in place.
1. Lightly lubricate oil temperature sensor O-ring and
install oil temperature sensor into breather cover.
2. Torque sensor to 7.3 N·m (65 in. lb.).
3. Push electrical connector on oil temperature sensor
making sure a good connection is made.
Install Oil Sentry
™
(If equipped)
1. Apply pipe sealant with Tefl on
®
(Loctite
®
592™ PST
®
Thread Sealant or equivalent) to threads of Oil
Sentry
™
switch and install it into breather cover.
Torque to 4.5 N·m (40 in. lb.).
2. Connect wire lead (green) to Oil Sentry™ terminal.
Install Blower Housing and Outer Baffl
es
NOTE: Do not completely tighten screws until all items
are installed to allow shifting for hole alignment.
1. Slide blower housing into position over front edge of
inner baffl es. Start a few screws to hold it in place.
2. Position outer baffl es and secure using M6 screws
Install M6 screws (20 mm long) into intake port side
of cylinder heads, including any lifting strap. Install
M6 screws (16 mm long) into exhaust port side of
cylinder head. Install short M5 screws (10 mm long)
in upper mounting holes of outer baffl es (into
backing plate). Be sure any leads are routed out
through proper off sets or notches, so they will not be
pinched between blower housing and baffl es.
3. Insert and tighten all remaining blower housing and
baffl e screws with exception of rectifi er-regulator
grounding bracket screw. Torque all blower housing
and baffl e M6 screws assembled into aluminum to
10.7 N·m (95 in. lb.) for a new hole, or 7.3 N·m (65
in. lb.) for a used hole. Torque all blower housing
and baffl e M5 screws assembled into sheet metal
(backing plate)to 2.8 N·m (25 in. lb.) for new holes,
or 2.3 N·m (20 in. lb.) for used holes.
4. Torque breather cover screws to 11.3 N·m (100 in.
lb.) into new holes or 7.3 N·m (65 in. lb.) into used
holes in sequence shown. Note fi rst screw is torqued
a second time.
Install Reconnect Rectifi er-Regulator
B
A
C
A
Ground Strap
B
Ground Lead
C
Ground Lug
NOTE: Rectifi er-regulator middle terminal (B+) is off set
(not equally spaced) from outer terminals (AC).
Verify rectifi er-regulator plug is assembled to
match terminal off set of rectifi er-regulator.
1. Install rectifi er-regulator in blower housing if
removed previously. Reinstall any washers and hose
clamps.
a. If engine has ground strap, secure it against outer
side of rectifi er-regulator with a silver or green
plated screw.
b. If engine has ground lead that secures in same
hole as rectifi er-regulator fastener, secure one
end to rectifi er-regulator and other end to backing
plate.
c. If engine has ground lead that secures in
separate ground lug fastener hole in rectifi er-
regulator, secure one end to ground lug and other
end to backing plate.
