Suzuki K6A-YH6, Technical/Repair Manual, Page: 37 / 113

THEORY OF OPERATION
4-11
4
4.6 Lubrication System
See Figure 4-13.
Figure 4-13
The K6A engine uses a wet sump lubrication system,
which force feeds oil through the full-flow oil filter and the
entire lubrication system.
The inner rotor of the oil pump is driven by the
crankshaft. The outer rotor is driven with the inner rotor.
The pump creates suction, and draws oil through the oil
pickup strainer from the oil pan. The oil is pumped
through the main passage of the front cover into the
engine block and the oil filter.
An oil pressure switch is located in this passage to
monitor and warn of low oil pressure.
The oil is routed through a full-flow oil filter equipped with
a bypass valve. The bypass valve will open and allow oil
flow to the engine in the event the filter becomes plugged
or damaged and will not allow oil flow to the engine. From
the filter, the oil flows into the main gallery. The main
gallery sends oil to both the cylinder block and the
cylinder head.
OIL PRESSURE
SWITCH
BYPASS VALVE
LUBE OIL FILTER
CYLINDER BLOCK MAIN GALLERY
.
REGULATOR
VALVE
LUBE OIL PUMP
OIL SUCTION PIPE
(STRAINER)
TENSION
ADJUSTER
TIMING
CHAIN
FRONT CAM
JOURNAL
CAMSHAFT
CAM JOURNALS
CAM FACE
TAPPETS,
PISTON PIN
CONNECTING
ROD
ROD
JOURNALS
ROD PIN
CRANK PIN
CRANK
JOURNALS
OIL PAN
VALVES
TN0751