Corolla Sport RWD L4-1587cc 1.6L DOHC (4A-GE) (1986)
(a) Set No.1 cylinder to TDC/compression.
^
Turn the crankshaft pulley and align its groove with the "0" mark of the No.1 timing belt cover.
^ Check that the valve lifters on the No.1 cylinder are loose and valve lifters on the No.4 are tight.
If not, turn the crankshaft one revolution (360°) and align the mark as above.
(b) Measure the clearance of half of the valves.
^ Measure only those valves indicated in the figure. Record the measurements which are out of specification. They will be used later to
determine the required replacement shims.
Valve clearance (Cold):
Intake 0.15 - 0.25 mm (0.006 - 0.010 in.)
Exhaust 0.20 - 0.30 mm (0.008 - 0.012 in.)
(Reference)
Valve clearance (Hot):
Intake 0.20 - 0.30 mm (0.008 - 0.012 in.)
Exhaust 0.26 - 0.36 mm (0.010 - 0.014 in.)
(c) Turn the crankshaft pulley one revolution and measure the other valves.
^ Turn the crankshaft pulley one revolution and align the timing marks as stated in (a) above.
^ Measure only the valves indicated as shown.
3. ADJUST VALVE CLEARANCE