Toyota 4-Runner 1985 Repair Manual page 18

MA-8
First
Tachometer
MAINTENANCE - Maintenance Operations
MA0046
MA0047
MA0046
MA0307
(d) Adjust the clearance of half of the valves.
• Adjust only those valves indicated by arrows.
Valve clearance: Intake 0.20 mm (0.008 in.)
Exhaust 0.30 mm (O.012 in.)
• Use a feeler gauge to measure between the valve
stem and rocker arm. Loosen the lock nut and turn
the adjusting screw to set the proper clearance.
Hold the adjusting screw in position, and tighten
the lock nut.
• Recheck the clearance. The feeler gauge should
move with a very slight drag.
(e) Turn the crankshaft one complete revolution (360°)
and align timing marks in the manner mentioned
above. Adjust only the valves indicated by arrows.
(f) Reinstall the valve cover.
(g) Reinstall the air cleaner (22R engine).
14. ADJUST IDLE SPEED
A.
22R-E ENGINE
(a) Preparation
• Air cleaner installed
• All pipes and hoses of air intake system connected
• All vacuum lines connected
(i.
e.,
SC, EGR systems,
etc.)
• EFI system wiring connectors fully plugged
• Engine at normal operating temperature
• Accessories switched off
• Transmission in N range
(b) Connect a tachometer to the engine.
Connect the tachometer positive (
+ )
terminal to the
ignition coil negative (-) terminal.
CAUTION:
1 . NEVER allow the tachometer terminal to touch ground
as it could result in damage to the igniter and/or ig'
tion coil.
2. As some tachometers are not compatible with this ig-
nition system, it is recommended that you consult
with the manufacturer.