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Home >> Acura >> 1997 >> 2.2CL Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Adjustments >> Adjustment >> Valve Clearance
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Valve Clearance

  1. Ensure cylinder head temperature is less than 100°F (38°C). Remove cylinder head cover and upper timing belt cover. Loosen valve adjusting screw locknut and adjust valve clearance. Tighten locknut and recheck valve clearance. After adjusting valves, ensure crankshaft pulley bolt is tightened to 181 ft. lbs. (245 N.m). Tighten valve adjusting screw locknut to 14 ft. lbs. (19 N.m).
  2. Rotate crankshaft counterclockwise until cylinder No. 1 is at TDC. TDC grooves on camshaft sprocket should be aligned with surface of cylinder head and "UP" mark on camshaft sprocket should be at top. Adjust valves on cylinder No. 1.
  3. Rotate crankshaft counterclockwise 180 degrees (camshaft sprocket will rotate 90 degrees) to bring No. 3 piston to TDC on compression stroke. "UP" mark on camshaft sprocket should be on exhaust side. Adjust valves on cylinder No. 3.
  4. Rotate crankshaft counterclockwise 180 degrees (camshaft sprocket will rotate 90 degrees) to bring No. 4 piston to TDC on compression stroke. TDC grooves on camshaft sprocket should be aligned with surface of cylinder head and "UP" mark on camshaft sprocket should be pointing straight down. Adjust valves on cylinder No. 4.
  5. Rotate crankshaft counterclockwise 180 degrees (camshaft sprocket will rotate 90 degrees) to bring No. 2 piston to TDC on compression stroke. "UP" mark on camshaft sprocket should be on intake side. Adjust valves on cylinder No. 2.
    VALVE CLEARANCE ADJUSTMENT

    Application (1) In. (mm)
    Intake .009-.011 (.23-.28)
    Exhaust .011-.013 (.28-.33)
    (1) Adjust valves when engine temperature is less than 100°F (38°C).
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