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Home >> Toyota >> 1986 >> MR2 Automatic >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 1.6L 4-CYL DOHC - VIN [A] >> Adjustments >> Valve Clearance Adjustment >> Measuring Valve Clearance

Measuring Valve Clearance

  1. With engine cold, remove camshaft covers. Position No. 1 cylinder at TDC of compression stroke. Check that lifters of No. 1 cylinder are loose and that lifters of No. 4 cylinder are tight. If not, turn engine 1 revolution.
  2. Using feeler gauge, measure No. 1 and 2 cylinder intake valve clearance and No. 1 and 3 cylinder exhaust valve clearance. Rotate engine 1 revolution and measure remaining valve clearances. If clearance is not as specified, change adjusting shim to adjust valve clearance. See VALVE CLEARANCE SPECIFICATIONS  table.
VALVE CLEARANCE SPECIFICATIONS

Valve In. (mm)
Intake .008 (.20)
Exhaust .010 (0.25)
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