RUNNING THE UNIT
Stopping
1.
Move the control
lever to neutral
position
and let the engine
run
some
minutes
at idling
speed before stopping it.
2.
Turn the key
switch
to neutral
position
when the engine has
stopped.
NOTE.
The
master switch must never be switched
off before the engine has completely
stopped.
3. Switch
off
the
master
switch
(if
fitted)
and close
the
fuel
and
cooling
water
cocks if the unit is to remain idle
for
some considerable time.
4.
lf
the unit is
to remain
idle
for
more than two weeks,
special
inhibiting
measures must be taken with the engine
(see
under
"Procedure
if
unit is to
remain idle").
lf the engine has electrical equipment, this equipment
should be sprayed
regularly
with
f luid which
protects
agalnst corrosion and moisture.
TECHNICAL DESCRIPTION
TECHNICAL
DESCRIPTION
ENGINE UNIT
The MBl0A is a
2-cylinder,4-stroke
petrol
engine,
specially constructed
for
marine
use.
The
cylinder block
and crankcase are made in one
piece.
The
crankcase is
provided
with a bottom
cover. The cylinder
bores,
which are
surrounded
by cooling
jackets,
are drilled directly
in the
cylinder
block.
The crankshaft is
carried in
two
main
bearings.
The
bearing shells are
replaceable
and have
bearing
metal of
indium-plated lead-bronze.
LUBRICATING
SYSTEM
The engine is
fitted
with a complete
pressure
lubricating
system.
The oil filter is of
the full-flow
type and is replaceable
as a unit.
lt is
provided
with an overf low valve.
The lubricating system
has
a
relief valve which
prevents
the oil
pressure
from
reachi n
g
excessive val ues.
FUEL SYSTEM
The engine
fuel
system
consists of a
fuel
pump,
carburetor
with
flame
arrester,
intake manifold and
fuel lines.
The fuel
pump
is of the diaphragm
type and is actuated
by
a cam on the engine
camshaft. A hand
priming
device
on the
feed
pump
makes it
possible
to
pump
the
fuel even when
the engine is stopped.
Fig.
6.
Longitudinal section of
engine
Fig.
5. Cross-section
of
engine
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