Subaru Robin EX35 - Manual (Page 12)

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4-12 TIMING CHAIN
Timing chain system is adopted and designed for
lubricating for the upper portion of cylinder head.
The timing chain is engaged between the sprocket
portion of integrated camshaft in the cylinder head and
the crankshaft gear sprocket.
The sprocket teeth in particular shape are adopted to
enhance the durability and to realize low noise level.
4-13 IGNITION SYSTEM
The ignition system is a transistor controlled magneto
system with the ignition timing set at 24 degrees
before the top dead center. The magneto consists of
a flywheel and ignition coil. The flywheel (cooling fan
is separete from the flywheel) is directly mounted on
the crankshaft and the ignition coil is directly
mounted on the crankcase.
* Model EX35 and 40 has a smooth advanced
ignition timing system to improve starting
performance. (For further details, refer to page
46, section “7. MAGNETO”.)
Fig.4-10
Fig.4-11
4-11 LUBRICATION SYSTEM
The rotating parts, sliding parts and valves of the engine are lubricated with oil in the crankcase.
The oil is splashed onto the parts by the oil splasher on the connecting rod.
4-10 COOLING SYSTEM
The engine uses a forced air-cooling system in which a synthetic resin cooling fan (which is separate from the
flywheel), reduce noise and forces cooling air into the cylinder and cylinder head.
Baffles are provided to guide the flow of cooling air. (As for with starting motor, baffle 1 is not mounted.)
4-9 GOVERNOR SYSTEM
This engine is equipped with a centrifugal flyweight
type governor that makes it possible to operate the
engine at a constant speed, even with load
variations. (The governor flyweights are mounted on
a governor gear.)
Fig.4-9
GOVERNOR GEAR
TIMING CHAIN
OIL SPLASHER
IGNITION COIL
FAN
FLYWHEEL