Lubrication System
28
24 690 37 Rev. B
KohlerEngines.com
This engine uses a full pressure lubrication system which
delivers oil under pressure to crankshaft, camshaft,
connecting rod bearing surfaces, and hydraulic valve
lifters.
A high-efficiency gerotor oil pump maintains high oil flow
and oil pressure, even at low speeds and high operating
temperatures. A pressure relief valve limits maximum
pressure of system. Oil pan must be removed to service
oil pickup, pressure relief valve, and oil pump.
Lubrication Components
I
A
B
H
G
F
D E
C
A
Oil Fill/Dipstick
B
Oil Fill Tube
C
Back Side
D
Oil Filter
E
Nipple
F
Oil Cooler
G
O-ring
H
Oil Drain Plug
I
Oil Sentry
TM
OIL RECOMMENDATIONS
Refer to Maintenance.
CHECK OIL LEVEL
NOTE: To prevent extensive engine wear or damage,
never run engine with oil level below or above
operating range indicator on dipstick.
Ensure engine is cool. Clean oil fill/dipstick areas of any
debris.
1. Remove dipstick; wipe oil off.
2. Reinsert dipstick into tube; rest cap on tube, do not
thread cap onto tube.
3. Remove dipstick; check oil level. Level should be at
top of indicator on dipstick.
4. If oil is low on indicator, add oil up to top of indicator
mark.
5. Reinstall dipstick and tighten securely.
CHANGE OIL AND FILTER
Change oil while engine is warm.
1. Clean area around oil fill cap/dipstick, drain plug/oil
drain valve.
a. Remove drain plug and oil fill cap/dipstick. Allow
oil to drain completely.
or
b. Open oil drain valve cap; if needed, attach a
length of 1/2 in. I.D. hose to direct oil into
appropriate container; twist valve drain body
counterclockwise and pull. Remove dipstick.
Allow oil to drain completely.
2. Clean area around oil filter. Place a container under
filter to catch any oil and remove filter. Wipe off
mounting surface.
a. Reinstall drain plug. Torque to 13.6 N·m
(10 ft. lb. ).
or
b. Close oil drain valve body, remove hose (if used),
and replace cap.
3. Place new filter in shallow pan with open end up. Fill
with new oil until oil reaches bottom of threads. Allow
2 minutes for oil to be absorbed by filter material.
4. Apply a thin film of clean oil to rubber gasket on new
filter.
5. Refer to instructions on oil filter for proper
installation.
6. Fill crankcase with new oil. Level should be at top of
indicator on dipstick.
7. Reinstall oil fill cap/dipstick and tighten securely.
8. Start engine; check for oil leaks. Stop engine; correct
leaks. Recheck oil level.
9. Dispose of used oil and filter in accordance with
local ordinances.
OIL COOLER (if equipped)
1. Clean fins with a brush or compressed air.
2. Remove screws securing oil cooler and tilt to clean
back side.
3. Reinstall oil cooler.
