Generator Engine Reassembly - Kohler 4EOZ Service

a. Place the main bearing cover under a press
and support its outer side with two mountings.
b. Press out the crankshaft. See Figure 10-58.
Figure 10-58 Crankshaft
c. Remove the snap ring of the bearing's outer
race.
d. With a socket, press on the inner race until the
bearing is out from its seat.
Note: The engine is completely disassembled. Clean
all parts with suitable cleaning solution. After the
parts are dried, check for any damage, wear or
tear. Replace any parts that are questionable.

10.4 Generator Engine Reassembly

Crankcase Bushing
1. Using a driver, press the crankshaft's bush bearing
on the crankcase. Ensure that its edge is inside the
crankcase as indicated in Figure 10-59.
ensure that its oil holes are horizontal and aligned
with the crankcase groove.
74 Section 10 Generator and Engine Disassembly/Reassembly
Figure 10-59 Crankcase Bushing
Crankshaft Gear
1. To install the crankshaft gear, heat it in an oil bath or
on an electrical heater plate at a temperature of
90--100_ C (195--210_ F). See Figure 10-60.
Also,
Figure 10-60 Crankshaft Gear
2. Using a socket and a hydraulic press, push it down
on the shaft.
3. Lubricate the bush bearing and slide the crankshaft
into the housing without damaging the bush
bearing with the gear teeth. See Figure 10-61.
TP-6137 5/03