Engine Tune-Up - Toyota Supra 1990 Manual

ENGINE MECHANICAL - Engine Tune-Up EM-7
ENGINE TUNE-UP
INSPECTION OF ENGINE COOLANT
(See page CO-51
INSPECTION OF ENGINE OIL
(See page LU-41
INSPECTION OF AIR FILTER
(See page MA-51
INSPECTION OF BATTERY
(See page CH-2)
INSPECTION OF HIGH-TENSION CORDS
(See pages IG-6, 11 I
INSPECTION OF SPARK PLUGS
(See page IG-71
INSPECTION OF DRIVE BELTS
(See page MA-41
INSPECTION OF IGNITION TIMING
(See page IG-201
INSPECTION AND ADJUSTMENT OF VALVE
CLEARANCE
HINT: Check and adjust the valve clearance while the en-
gine is cold.
(7M-GE)
1. DRAIN COOLANT
(See page CO-51
EM3007
2. REMOVE NO.1 AIR CLEANER HOSE WITH AIR
~------------------------~
CONNECTOR PIPE
3. REMOVE AIR INTAKE CONNECTOR
(a) Disconnect following cables:
• Cruise control cable
• Accelerator cable
• (AfT)
Throttle cable
(bl Remove the PCV pipe.
(c) Disconnect the accelerator rod.
(d) Disconnect the water by-pass hoses from the throt-
tle body.