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VALVE CLEARANCE INSPECTION [MZR-CD (RF Turbo)]

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1. Remove the engine cover. (See TIMING BELT REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)

2. Remove the timing belt cover bolt as shown.

3. Remove the cylinder head cover. (See CYLINDER HEAD GASKET REPLACEMENT [MZR-CD (RF Turbo)].)

4. Turn the crankshaft and align the timing mark so that the piston of the No.1 or No.4 cylinder is at TDC of compression.

5. Measure valve clearances A with the No.1 cylinder at TDC of compression, and those of B with the No.4 cylinder at TDC of compression.

  • If the valve clearance is not within the specification, adjust the valves. (See VALVE CLEARANCE ADJUSTMENT [MZR-CD (RF Turbo)].)

Standard valve clearance [Engine cold]

  IN: 0.09-0.21 mm {0.004-0.008 in}
  EX: 0.29-0.41 mm {0.012-0.016 in}

6. Turn the crankshaft one full turn and measure the remaining valve clearances.

  • Adjust if necessary. (See VALVE CLEARANCE ADJUSTMENT [MZR-CD (RF Turbo)].)

7. Install the cylinder head cover. (See Cylinder Head Cover Installation Note.)

8. Install the timing belt cover bolt as shown.

  Tightening torque
  7.8-10.8 N·m {79.6-110 kgf·cm, 69.1-95.5 in·lbf}

9. Install the engine cover. (See TIMING BELT REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)