Adjustment Of Idle Speed And Maximum Speed - Toyota 2L-T Repair Manual

ENGl NE MECHANICAL
-
Engine T u n e U ~
EM-27
ADJUSTMENT OF IDLE SPEED AND MAXIMUM
*
SPEED
1. INITIAL CONDITIONS
(a)
Engine a t normal operating temperature
(b) Air cleaner installed
(c) All accessories switched OFF
(d) All vacuum lines properly connected
(e) Valve clearance set correctly
(f) Injection timing set correctly
(g) Transmission in neutral range
2. CONNECT TACHOMETER
3.
ADJUST IDLE SPEED
(a) Check that the adjusting lever touches the idle speed
adjusting screw when the accelerator pedal is released.
f not, adjust the accelerator linkage.
b) Start the engine.
(c) Check the idle speed.
Idle speed: 2L-T 700
-
800 rpm
3L 650
-
750 rpm
(d) Adjust the idle speed.
Disconnect the accelerator linkage.
Loosen the lock nut of the idle speed adjusting
screw.
Adjust the idle speed by turning the IDLE SPEED
ADJUSTING SCREW.
Idle speed : 2 L-T 750 rpm
3L 700 rpm
Securely tighten the lock nut, and recheck the idle
speed.
Reconnect the accelerator linkage.
After adjustment, adjust the accelerator linkage.
4. ADJUST MAXIMUM SPEED
(a)
Check that the adjusting lever touches the maximum
speed adjusting screw when the accelerator pedal i s
depressed all the way.
I f not, adjust the accelerator linkage.
(b) Start the engine.
(c) Depress the accelerator pedal all the way.