Inspection And Adjustment Of Idle And Maximum Speed - Toyota 3b Repair Manual

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.