ADJUSTMENTS, BENCH TEST, PERFORMANCE TESTS
..-----(
NOTE 1----------,
(a)
If
all
vent
plugs
are
tightened
before
the
priming
pump
handle
is
locked,
fuel
pressure
acts
on
the
feed
pump, making
it
impossible to
restore
the handle.
(b)
Wipe
off
fuel
spilt
from
the vent
holes with cloth
•
.
1.3 Fuel injection timing inspection
and adjustment
The injection timing for each model of
the
engine varies according to its
output, speed and specification.
Be
sure
to verify
the
timing
by
referring to the
specifica tions
of
each model.
(1)
Bringing
No.
1 piston to top dead
center
on
compression stroke
34
(a)
Using
turning bar (30691-11800)
at
the crankshaft pulley, turn the
crankshaft
in
normal direction
(clockwise as viewed from the
fron t side of the engine).
(b)
Stop cranking the engine when the
timing mark
"0"
on
the crankshaft
pulley is aligned with the pointer.
(c)
Move
the intake and exhaust valve
rocker arms for the
No.
1 cylinder
up
and down
to
make sure
that
they
are
not being pushed
up
by
their push rods.
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