Subaru Robin Power Products DY30, DY35, DY41 manual $=I, OIL Filter

7-4LUBRICATIONSYSTEM and OIL PUMP

Lubrication is forced lubrication and wholly fdtered system by trochoid type oil pump. The oil pump, and thegovernor are assembled in one piece, whichis fitted to thecrankcase.

Revolution of the crankshaft is reduced by the reductiongear (1 : 1.4) of the pump; and from themain gallery oil is forcibly lubricated to the crank journal. Thatoil wil further be supplied to the crankpin,large end of the connecting rod, and then splashed to the piston, small end of the connecting,rod, cylinder, etc.Also from the main gallery oil is forcibly supplied to the cam shaft bearingand is sent t o cam lobe of intake and exhaust valves and lubricate the tappets. In the camshaft oil relief valve is assembled, and it adjusts the oil pressure at 3 kg/cm2. Lubrication in the rocker chamber is conducted by the splash of oil pushed u p by blow-by gas, which lubricates rocker arm, etc.

Furthermore, blow-bygas containing oilwill pass through the breather, intake port and the cylinder, whereit is finally burnt.

LUBRICATIONCHART

r	Ir	I
	BREATHER 1-1INTAK:PORT1
	I
*	t
	COMBUSTION
I

t	1	CYLINDER	k’
I	$=I”!
		PISTON,BEARING
		S M A L L E N D
	O I L F I L T E R

Fig. 68

7 - 5 . OIL FILTER

Oil filter is madeofdouble sheets ofwire netting, and it is less flow resistance type, and is called full-flow type. As the element is made of wire, it canbe washed and used for many times.

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