Reassembly
56 62 690 02 Rev. DKohlerEngines.com
NOTE: Make sure engine is assembled using all
specifi ed torque values, torque sequences, and
clearances. Failure to observe specifi cations
could cause severe engine wear or damage.
Always use new gaskets. Apply a small amount
of oil to threads of critical fasteners before
assembly, unless a sealant or Loctite
®
is
specifi ed or preapplied.
Make sure all traces of any cleaner are removed before
engine is assembled and placed into operation. Even
small amounts of these cleaners can quickly break down
lubricating properties of engine oil.
Check oil pan, crankcase, cylinder heads, and valve
covers to be certain all old gasket material has been
removed. Use gasket remover, lacquer thinner, or paint
remover to remove any remaining traces. Clean surfaces
with isopropyl alcohol, acetone, lacquer thinner, or
electrical contact cleaner.
Install Flywheel End Oil Seal
1. Make sure seal bore of crankcase is clean and free
of any nicks or burrs.
2. Apply a light coat of clean engine oil to outside
diameter of oil seal.
3. Install oil seal into crankcase using a seal driver.
Make sure oil seal is installed straight and true in
bore and tool bottoms against crankcase.
Install Lifter Feed Chamber Gaskets and Cover
1. Install lifter feed chamber gasket, followed by lifter
feed cover over lifter feed chamber.
2. Install screws. Make sure all parts are properly
aligned. Torque screws to 6.2 N·m (55 in. lb.) into
new holes, or 4.0 N·m (35 in. lb.) into used holes.
Install Crankshaft Bearing (fl ywheel)
If bearing was removed in servicing, install a new
bearing using an arbor press and driver.
1. Make sure crankcase bore for bearing is clean, dry
and free of nicks or burrs.
2. Press fl ywheel side main bearing in place with notch
oriented in 12 o’clock position using an arbor press
and driver. Make sure bearing is fully seated against
fl ange and oil feed hole is open in crankcase.
3. Apply a light coat of clean engine oil to inner surface
of main bearing.
Crankcase Components
A
Q
O
B
C
P
D
E
I
J
K
L
M
N
C
F
G
H
A Camshaft B Locking Tab
C Regulating Pin D Governor Gear
E Cross Shaft F Lifter Feed Cover
Gasket
G Lifter Feed Cover H Governor Yoke
I Crankshaft J Connecting Rod
End Cap
K Connecting Rod L Piston Pin
M Piston Pin Retainer N Piston
O Piston Ring Set P Oil Seal
Q Crankshaft Bearing
(Flywheel)
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