ENGINE MECHANICAL
-
Engine Tune-up
EM-25
ADJUSTMENT OF INJECTION TIMING
(Others)
1.
INSTALL SST AND DIAL INDICATOR
(a)
Remove the plug bolt and gasket from the distribu-
tive head plug of the injection pump.
(b)
Install SST (plunger stroke measuring tool) and
a
dial
indicator to the plug bolt hole of distributive head
plug.
SST 09275-5401 0
SET NO.
1
OR NO.
4
CYLINDER TO
25"
OR MORE
BTDCICOMPRESSION
Turn the crankshaft pulley clockwise so the pulley groove
is
25" or more from the timing pointer.
(2
L-T)
RELEASE ACSD ADVANCE
(a)
Using
a
screwdriver, turn the cold starting lever
counterclockwise approx. 20".
(b) Put
a
metal plate (thickness of
8.5
-
10 mm (0.335
-
0.394 in.)) between the cold starting lever and
thermo wax plunger.
ADJUST INJECTION TIMING
(a)
Set the dial indicator
at
0 mm (0 in.).
(b)
Recheck to see that the dial indicator remains
at
0
mm (0 in.) while slightly rotating the crankshaft
pulley clockwise or counterclockwise.
(c) Slowly rotate the crankshaft pulley clockwise until
pulley groove
is
aligned with the timing pointer.
(d) Measure the plunger stroke.
Plunger stroke:
2L-T
0.54
-
0.66
mm
(0.0213
-
0.0260
in.)
3L
0.84
-
0.96
mm
(0.0331
-
0.0378
in.)
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