Toyota B - Inspection and Adjustment of Idle and Maximum Speed

ENGINE MECHANICAL
-
Engine Tune-up
EM-25
new
;tarter
INSPECTION
AND ADJUSTMENT
OF
IDLE
AND
MAXIMUM
SPEED
1. INITIAL
CONDITIONS:
(a)
Air
cleaner
installed
(b)
Engine coolant normal
operating temperature
(c)
Accessories
switched off
(d)
Transmission
in neutral
2.
CONNECT
TACHOMETER
TO ENGINE
3.
DISCONNECT
ACCELERATOR
CONNECTING ROD
Disconnect
the accelerator
connecting rod from
the
injec-
tion
pump.
4.
INSPECT AND ADJUST IDLE
SPEED
(a)
Check that the adjusting lever is in
contact
with
the
idle
speed adjusting screw.
lf not,
check if the air
conditioner switch is
OFF or
if
engine
is running
at
normal
operating temperature.
(b)
Start the engine and check the idle
speed.
ldle
speed: M/T
600
-
7OO rpm
A/T
77O
-
820
rpm
HINT
(w,z
ACSD
only):
Make sure the
idle up is
not
touch-
ing
the adjusting
lever.
(c)
Loosen the lock nut
and adjust by turning
the
idle
adjusting
screw.
(d)
Securely tighten the lock nut
and
recheck
the idle
speed.
5. INSPECT AND ADJUST
MAXIMUM
SPEED
(a)
lnspect
the engine maximum
speed
with
the adjust-
ing
lever fully depressed.
Maximum
speed: B, 38 4,050
-
4,2OO
rpm
118,
148 4,O5O
-
4.25O rpm
NOTICE:
This
check should be
performed
in
as short a
time
as
possible.