Lubrication System - Suzuki K6A-YH6 Technical/Repair Manual

4.6 Lubrication System

See Figure 4-13.
OIL PRESSURE
SWITCH
REGULATOR
VALVE
LUBE OIL PUMP
OIL SUCTION PIPE
(STRAINER)
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.
BYPASS VALVE
LUBE OIL FILTER
CYLINDER BLOCK MAIN GALLERY
TENSION
FRONT CAM
ADJUSTER JOURNAL
TIMING
CAMSHAFT
CHAIN
CAM JOURNALS
CAM FACE
TAPPETS,
VALVES
OIL PAN
Figure 4-13
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.
THEORY OF OPERATION
.
CRANK
JOURNALS
CRANK PIN
ROD PIN
ROD
JOURNALS
CONNECTING
ROD
PISTON PIN
4
TN0751
4-11