Reassembly; Install Governor Shafts, Seal, And Governor Gear; Install Crankshaft; Piston Details View - Kohler ECV940 Service Manual

Reassembly

Install Governor Shafts, Seal, and Governor Gear

(Mechanical Governor only)
Governor Components and Details
A
C
D
E
A Crankcase Surface
C Oil Seal
E Crankcase Surface
If governor shafts, seal, and/or governor gear were
removed, reassemble as follows.
1. Lightly oil lip and outside diameter of new governor
cross shaft seal. Install seal into crankcase to depth
shown.
2. If governor gear shaft was removed, press or lightly
tap replacement shaft into oil pan to depth shown.
3. Lubricate governor cross shaft bearing surfaces in
crankcase with engine oil. Insert governor cross
shaft end with fl at cutout where governor yoke is
secured, into crankcase and position shaft so that
fl at part is visible (up).
4. Attach governor yoke to cross shaft so curved
section is up as marked. Secure with screws. If a
thread locking compound is not preapplied, apply a
small amount of Loctite
equivalent, to screw threads before installing. Torque
screws to 2.2 N·m (20 in. lb.).
5. Install fi rst regulating pin with head down so it will
contact yoke. Install governor gear with second
regulating pin and fl yweight assembly in/down onto
governor shaft until it locks into position. Apply a
small amount of grease to locking tab thrust washer
and install on top of governor gear so tang is facing
up in 6 o'clock position.
84
B
F
Seal Depth
B 1.5-2.0 mm
(0.059-0.078 in.)
12.66 mm
D
(0.498 in.)
Governor Gear
F
Shaft
® 266™ Threadlocker or

Install Crankshaft

Carefully slide fl ywheel end of crankshaft through oil seal
in crankcase.
Install Connecting Rods with Pistons and Rings
Piston Details
A
A
C Top of Piston
NOTE: Cylinders are numbered on crankcase. Make
sure to install piston, connecting rod and end
cap into appropriate cylinder bore as previously
marked at disassembly. Do not mix end caps
and connecting rods.
NOTE: Proper orientation of piston/connecting rod
assemblies inside engine is extremely important.
Improper orientation can cause extensive wear
or damage. Be certain pistons and connecting
rods are assembled exactly as shown.
1. Stagger piston rings in grooves until end gaps are
120° apart. Oil ring rails should also be staggered.
2. Lubricate cylinder bore, piston, and piston rings with
engine oil. Compress rings of piston side 1 using a
piston ring compressor.
3. Lubricate crankshaft journals and connecting rod
bearing surfaces with engine oil.
4. Make sure FLY stamping on piston is facing toward
fl ywheel side of engine. Use a hammer with a rubber
grip and gently tap piston into cylinder. Be careful oil
ring rails do not spring free between bottom of ring
compressor and top of cylinder.
5. Install inner rod cap to connecting rod using screws.
Torque screws in increments to 11.6 N·m (103 in.
lb.). Illustrated instructions are provided in service
rod package.
Align chamfer of connecting rod with chamfer of its
mating end cap. When installed, fl at faces of
connecting rods should face each other. Faces with
raised rib should be toward outside.
6. Repeat this procedure for other connecting rod and
piston assembly.
KohlerEngines.com
C
Side 1 B
B
Side 2
62 690 05 Rev. --