Subaru ER12 - 7. Lubrication System; 7-1 Operation and Function

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7. LUBRICATION SYSTEM
7-1 OPERATION AND FUNCTION
Forced pressure spray and splash lubrication system are adopted, in combination with trochoid oil pump
and plugged filter The trochoid type oil pump is driven by crankshaft, and sprays pressurized engine oil
to the crankshaft, connecting rod and inside of crankcase
The engine oil in the oil pan is fed through the suction pipe, oil pump filter and gallery of main bearing
cover The engine oil is provided onto the rotating portions such as journal and pin portion of crankshaft,
connecting rod, the cylinder, and piston The splashed engine oil is provided to supply the cylinder head
valve system by timing belt
SPLASH
OIL PAN
CYLINDER HEAD
CAM, VALVES
ROCKER ARMS
PISTON
CYLINDER
NOZZLE
(M.B.C)
SPRAY
SUCTION PIPE PLUG UNIT(OIL FILTER) OIL PUMP
CRANKSHAFT
CONNECTING ROD
LARGE END
TIMING BELT
OIL PURESSURE
SWITCH
OIL PUMP
SPRAY
OIL PRESSURE SWITCH
PLUG UNIT
(OIL FILTER)
CRANKSHAFT
Flow of oil