Remove Oil Pan Assembly; Governor Assembly; Oil Pump Assembly (Style A); Governor Shaft Component And Details - Kohler Courage SV710 Service Manual

Disassembly/Inspection and Service

Remove Oil Pan Assembly

1. Remove screws securing oil pan to crankcase.
2. Locate splitting tab cast into perimeter of oil pan.
Insert drive end of a 1/2" breaker bar between
splitting tab and crankcase and turn it to break RTV
seal. Do not pry on sealing surfaces as this can
cause leaks.
Inspection
Inspect oil seal in oil pan and remove it if it is worn
or damaged. New oil seal is installed after oil pan is
assembled to crankcase. See Reassembly, Oil Seal in
Oil Pan.
Inspect main bearing surface for wear or damage (refer
to Specifi cations). Replace oil pan assembly if required.

Governor Assembly

Governor gear assembly is located inside oil pan. If
service is required, continue following steps.
Inspection
Inspect governor gear teeth. Replace gear if it is worn,
chipped, or if any teeth are missing. Inspect governor
weights. They should move freely in governor gear.
Disassembly

Governor Shaft Component and Details

A
34.0 mm (1.3386 in.)
A
33.5 mm (1.3189 in.)
C Gear Shaft
NOTE: Governor gear is held onto shaft by small
molded tabs in gear. When gear is removed from
shaft, these tabs are destroyed and gear must
be replaced. Therefore, remove gear only if
absolutely necessary.
Governor gear must be replaced once it is removed from
oil pan.
62
C
B
B 19.40 mm (0.7638 in.)
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1. Use 2 small screwdrivers and carefully pry upward to
remove regulating pin and governor gear assembly.
2. Remove locking tab thrust washer located under
governor assembly.
3. Carefully inspect governor gear shaft and replace it
only if it is damaged. After removing damaged shaft,
press or lightly tap replacement shaft into oil pan to
depth shown.
Reassembly
1. Install locking tab thrust washer on governor gear
shaft with tab down.
2. Position regulating pin within governor gear/
fl yweights assembly and slide both onto governor
shaft until assembly locks into place.

Oil Pump Assembly (Style A)

Oil pump is mounted inside oil pan. If service is required,
continue with Disassembly, Inspection, and Reassembly.
Disassembly
NOTE: Relief valve is sealed as part oil pump housing
and not serviceable. Replace oil pump if relief
valve condition or function is questionable in any
way.
1. Remove screws.
2. Lift oil pump assembly from oil pan.
3. Outer gerotor gear is typically held captive in oil
pump housing. If gear becomes separated, see step
1 under Reassembly for proper reinstallation.
Inspection
Inspect oil pump housing, gear, and rotors for nicks,
burrs, wear, or any visible damage. Check oil pickup
screen for damage or restriction. If any parts are worn or
damaged, replace oil pump assembly. Disassembly of oil
pump is not recommended. If retaining ring of main shaft
is removed for any reason, a new retaining ring should
be used. Do not install a used ring.
Reassembly
1. Lubricate outer gerotor gear with oil. If outer gear
was separated from oil pump housing examine outer
edges. On gerotor gears: 1 edge contains small
molding marks or dots, which must be matched to
those on inner gear. If dots are not visible on inner
gear, install outer gear with dots down or in. If dots
are visible, outer gear should be installed with dots
up or out. Not matching molding dots will result in
reduced pump output effi ciency.
2. Install oil pump inserting center shaft into
corresponding recess in oil pan. Secure oil pump by
torquing screws in indicated sequence to 11.2 N·m
(100 in. lb.) in new, as-cast holes, or 7.3 N·m
(65 in. lb.) into used holes.
a. Start fastener 1 into hole, apply only minimal
torque to position pump.
b. Torque fastener 2 to full value.
c. Torque fastener 1 to full value.
d. After torquing, rotate gear and check for freedom
of movement. Make sure there is no binding. If
binding occurs, loosen screws, reposition pump,
retorque screws and recheck movement.
32 690 01 Rev. G