Filter
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Figure 15. Optional Remote Mounted Oil Filter.
Replace the oil filter as follows:
1. Before removing the oil filter, clean the area
around the oil filter and housing to keep dirt and
debris out of the engine. Remove the old filter. On
crankcase mounted oil filter housings, a spring
loaded inner cup allows automatic oil drainback
into the crankcase as the oil filter is removed.
Wipe off the surface where the oil filter mounts.
2. Drain the oil from the engine crankcase.
3. Allow ample time for the oil to drain from the
crankcase.
4. Reinstall the drain plug and torque to 21.4 N·m
(15.7 ft. lb.).
5. Apply a thin film of clean oil to the rubber gasket
on the new filter.
6. Install the replacement oil filter. Turn the oil filter
clockwise until the rubber gasket contacts the oil
filter housing (not inner cup), then tighten the
filter an additional 3/4 to 1 turn.
7. Fill the crankcase with new oil of the proper type
to the F mark on the dipstick.
8. Start the engine and check for oil leaks. Correct
any leaks before placing the engine into service.
Check oil level to be sure it is up to but not over
the F mark.
Service Oil Cooler
Engines are equipped with an oil cooler mounted
under the No. 2 side cylinder shroud, separate from
the oil filter (see Figure 16).
Inspect and clean the oil cooler every 150 hours of
operation (more frequently under severe conditions).
Oil cooler must be kept free of debris.
Figure 13. Oil Drain Plug (No. 2 Side).
Change Oil Filter
The oil filter on most engines is located on top of the
crankcase between the cylinders. Some models use a
remote mounted oil filter. See Figures 14 and 15.
Replace the oil filter seasonally (150 hours), or at least
every other oil change (every 300 hours of operation).
Always use a genuine Kohler oil filter, Part No. 52 050 02-S.
Figure 14. Engine Mounted Oil Filter.
NOTE: To prevent extensive engine wear or damage,
always maintain the proper oil level in the
crankcase. Never operate the engine with the
oil level below the L mark or over the F mark
on the dipstick.
Figure 12. Oil Drain Plug (Starter Side).
Oil Filter
Oil Filter
Housing
Drain Plug
Drain Plug