Valve Clearance: Testing and Inspection

VALVE CLEARANCE INSPECTION [MZR 2.0, MZR 2.5]

1. Remove the battery cover. Removal and Replacement

2. Disconnect the negative battery cable. Removal and Replacement

3. Remove the plug hole plate. Plug Hole Plate Removal/Installation

4. Disconnect the wiring harness.

5. Remove the ignition coils. Service and Repair

6. Remove the spark plugs. Service and Repair

7. Remove the ventilation hose.

8. Remove the oil level gauge.

9. Remove the cylinder head cover. Service and Repair

10. Remove the aerodynamic under cover No.2 and splash shield as a single unit. Aerodynamic Under Cover No. 2 Removal/Installation Splash Shield Removal/Installation

11. Measure the valve clearance.
NOTE:
- Make sure to note down the measured values for choosing the suitable replacement tappets.

a. Turn the crankshaft clockwise so that the No.1 piston is at top dead center (TDC) of the compression stroke.

b. Measure the valve clearance at A in the figure.






Valve clearance for inspection [Engine cold]
- IN: 0.22-0.30 mm {0.009-0.011 in}
- EX: 0.27-0.37 mm {0.011-0.014 in}

c. If the valve clearance is out of the standard value, adjust it. Adjustments

d. Turn the crankshaft 360° clockwise so that the No.4 piston is at TDC of the compression stroke.

e. Measure the valve clearance at B in the figure.

Valve clearance for inspection [Engine cold]
- IN: 0.22-0.30 mm {0.009-0.011 in}
- EX: 0.27-0.37 mm {0.011-0.014 in}

f. If the valve clearance is out of the standard value, adjust it. Adjustments

12. Install in the reverse order of removal.