Celica ST Ltd Ed Liftback L4-1762cc 1.8L DOHC MFI (1997)
Valve Clearance: Adjustments
NOTE: Inspect and adjust the valve clearance when the engine is cold.
1. Disconnect wire and clamp from generator.
2. Disconnect high-tension cord from cylinder head cover.
3. Remove cylinder head cover.
Remove the 4 cap nuts, seal washers, head cover and gasket.
4. Set No. 1 cylinder to Top Dead Center (TDC)/Compression.
(a)
Turn the crankshaft pulley, and align its groove with timing mark "0" of the No. 1 timing belt cover.
(b) Check that the hole of the camshaft timing pulley is aligned with the timing mark of the bearing cap.
If not, turn the crankshaft 1 revolution (360°).
5. Inspect valve clearance.
(a)
Check only the valves indicated.
^
Using a feeler gauge, measure the clearance between the valve lifter and camshaft.
^
Record the out-of-specification valve clearance measurements. They will be used later to determine the required replacement adjusting
shim.
Valve clearance (Cold):
Intake: 0.15 - 0.25 mm (0.006 - 0.010 inch)
Exhaust: 0.25 - 0.35 mm (0.010 - 0.014 inch)