Inspection And Adjustment Of Injection Timing - Toyota 3b Repair Manual

EM-22
ENGINE MECHANICAL
-
Engine Tune-up
INSPECTION AND ADJUSTMENT
OF
INJECTION TIMING
1.
INSTALL PLUNGER STROKE MEASURING TOOL
(ssT) AND D|AL
TNDTCATOR
(a)
Remove
the
distributive head
plug bolt from
the
injection pump.
(b)
lnstall
SST and the dial
indicator
to the
distributive
head plug
hole.
ssT 09275-54010
2.
SET
NO. 1 OR NO. 4 CYLINDER TO APPROX.
35
-
830 BTDC,/COMPRESSTON
Turn the crankshaft pulley clockwise so the pulley
groove
is
35
-
83o from the timing gear cover groove.
3.
(w/
ACSD)
RELEASE COLD STARTING SYSTEM
(a)
Using
a
screwdriver,
turn the
cold starting
lever
counterclockwise approx. 20o
as
shown.
(b)
Put
a metal plate 8.5
-
1O
mm (0.33
-
0.39
in.)
thick between the cold starting lever and thermo wax
plunger.
4.
CHECK INJECTION TIMING
(a)
Set
the dial indicator at
O
mm
(O
in.).
(b)
Recheck
to
see
that the dial indicator remains at 0
mm
(O
in.)while rotating the crankshaft pulley slightly
to the left and right.
(c)
Slowly rotate the crankshaft pulley clockwise until the
pulley groove is aligned
with the timing gear
cover
groove.
(d)
Measure the plunger
Plunger
stroke:
B,
38
118
148,
Metal
Plate
.5-1Omm
stroke
1.27
-
1.33 mm
(O.O45O
-
O.0524
in.)
1.34
-
1.40 mm
(O.Os28
-
0.O551 in.)
1.31
-
1.37
mm
(0.0516
-
O.O539 in.)