LUBRICATING OIL FILTER
Spin-On Oil Filter
A spin-on type oil filter is installed ahead of the oil cooler
in the lubrication system. The filter is mounted on the
oil cooler adapter plate as shown in Fig. 2.
All of the oil supplied to the engine by the oil pump
passes through the filter before reaching the various
moving parts of the engine. The oil is forced by pump
pressure through a passage in the filter adapter to the
filter. Impurities are filtered out as the oil is forced
through the filter and out through another passage in the
filter adapter and then to the oil cooler.
A valve, which opens at approximately 18-21 psi
(124145 kPa), is located in the filter adapter or base and
will bypass the oil directly to the oil cooler should the
filter become clogged.
Fig. 1 - Typical Oil Filter Mounting.
Oil Filter Maintenance
With the use of detergent lubricating oils, the color of
the lubricant has lost value as an indicator of oil
should be shortened. The removal of abrasive dust,
cleanliness or proper filter action. Due to the ability of
metal particles and carbon must be ensured by
the detergent compounds to hold minute carbon
replacement of the oil filter cartridges at the time the
particles in suspension, heavy duty oils will always
engine oil is changed.
appear dark colored on the oil level dipstick.
Selection of a reliable oil supplier, strict observation of
Heavy sludge deposits found in the filter cartridges at
his oil change period recommendations and proper filter
the time of an oil change must be taken as an indication
maintenance will ensure trouble-free lubrication and
that the detergency of the oil has been exhausted.
longer engine life.
When this occurs, the oil drain interval
Fig. 2 - Full-Flow Oil Filter Details and Relative Location of Parts.