Service manual
Table Of Contents
The engine with RSV governor
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 specifications
of
each model.
(1) Bringing
No.1
piston to top dead center on com-
pression stroke
(a) Using turning bar
(30691-11800) at the crank-
shaft pulley, turn the crankshaft in normal
direction (clockwise
as
viewed from the front
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.
(2) Inspecting fuel injection timing
(a) Remove the delivery
valve
holder from
No.1
pumping element
of
injection pump. Take de-
livery
valve
and spring out
of
the holder, and
restore the holder to the pump.
(b) Turn the crankshaft to bring No. 1 piston to
about 60° position before top dead center on
compression stroke.
(c)
While
operating the priming pump to allow fuel
to flow from the delivery
valve
holder, crank the
engine in normal direction. Reduce cranking speed
when the fuel just starts
to
stop flowing. Stop
cranking when the fuel stops flowing.
(d) Make sure that the timing mark on the crankshaft
pulley
is
aligned with the pointer.
(3) Adjusting fuel injection timing
(a)
If
the timing
is
retarded, tilt the injection pump
toward the crankcase.
If
it
is
advanced, tilt the
pump away from the crankcase.
-
58-
To retard
401304