Subaru Robin Power Products EH12-2, EH17-2, EH25-2 manual

4-6CAMSHAFT

Thecamshaft for theD-typeengine ismade of specialcastiron and camshaftgearsarecastedto- gether in one piece.

Both sides of the shaft fit into the plane bearings on the crankcase and main bearing cover.

ThecamshaftfortheB-typeengineismadeof forged carbon steel and also functions as PTO shaft. The cam gear is press fitted on the shaft and the ball bearingsareemployed on both sidesforsupporting the shaft.

4-7VALVEARRANGEMENT

The intake valve is located on flywheelside of the cylinder head.

The hard alloy valve seatsaxe molded in the cylinder head and stellite is fused to the exhaust valve face. The cylinder baffle leads cooling air to the exhaust valve area for the optimum cooling.

4-8 CYLINDER HEAD

The cylinder head is an aluminum die casting which

utilizeswedge type combustionchamber for the highest combustion efficiency.

BTYPE

D lYPE

Fig. 4-6

n

INTAKE

/

Fig. 4-7

Fig. 4-8

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