Service manual

Disassembly/Inspection and Service
5362 690 01 Rev. C KohlerEngines.com
1. Make sure recess in closure plate for oil pump
gerotor gears is clean.
2. Lubricate oil pump gerotor gears with grease
(Lubriplate
®
100 or equivalent), and install into
recess.
3. Lightly lubricate with oil and install inlet seal into oil
pump housing until it is fully seated.
4. Install O-ring in groove of oil pump housing. Use a
small quantity of grease to hold it in place.
5. Lightly lubricate I.D. of inlet seal with oil and carefully
insert ferruled end of pickup tube through grommet,
into oil pump housing. Position pickup tube so
outboard end faces up.
6. Install oil pump housing with pickup tube, over oil
pump boss and gears. Position relief valve baffl e on
screw locations 2 and 3. Align all 3 screw locations.
7. Install clamp for pickup tube and fi nger tighten
screw. Check alignment of parts and torque oil pump
housing screws as specifi ed using sequence below:
a. Install fastener into location 1 and lightly tighten
to position pump.
b. Install fastener into location 2 and fully torque to
recommended value.
c. Install fastener into location 3 and fully torque to
recommended value.
d. Finish torquing fastener in location 1 to
recommended value.
First Time Installation: 10.7 N·m (95 in. lb.).
All Reinstallations: 6.7 N·m (60 in. lb.).
8. Torque clamp (pickup tube) mounting screw to
10.7 N·m (95 in. lb.) into new hole or 7.3 N·m
(65 in. lb.) into used hole.
Remove Closure Plate Assembly
1. Remove screws securing closure plate to crankcase.
2. Locate protruding tabs on closure plate. Carefully
tap to break gasket seal. Do not pry on sealing
surfaces as this could cause leaks. Separate closure
plate from crankcase. Remove old gasket.
Inspection
Inspect oil seal in closure plate and remove it if worn or
damaged.
Inspect crankshaft bearing surface for wear or damage.
Replace bearing or closure plate assembly if required.
Oil Pump Assembly
Disassembly
1. Remove screws securing oil pump housing including
relief valve baffl e and clamp for pickup tube.
2. Remove oil pump housing and pickup tube from
closure plate.
3. Remove oil pump gerotor gears from closure plate
recess.
4. Remove oil pickup by pulling it free from oil pump
body.
5. Relief valve is a one-piece style, staked to oil pump
housing; removal should not be attempted, nor is
internal servicing possible. If a problem with relief
valve is encountered, oil pump should be replaced.
Inspection
Inspect oil pump housing, gerotor gears, and closure
plate recess for nicks, burrs, wear, or any visible
damage. Inspect inlet seal for pickup tube in housing. If
any parts are worn or damaged, replace seal, oil pump
or closure plate as required.
Reassembly
Torque Sequence
1
1
2
2
3
3