Manual inspection
1. Set the piston of the first cylinder to TDC.
2. Remove the ignition wire cover and wires.
3. Remove the ignition clips by pressing the lock.
4. Remove the cylinder head cover.
5. Press the middle rocker arm on cylinder #1 with your finger.
6. Make sure that the middle rocker arm turns independently of the primary and secondary rocker arms.
7. Check the middle rocker arm of each cylinder at TDC.
- If the middle rocker arm does not turn, remove the middle, primary and secondary rocker arm assembly and make sure the pistons in the middle and primary rocker arms move evenly.
- If any of the rocker arms require replacement, replace the primary, middle and secondary rocker arms as an assembly.
Inspection using special tools
Attention:
- Before using special tools, make sure that the pressure gauge on the compressor shows pressure above 400 kPa (4 kgf/cm²).
- Before inspecting the rocker arm, check the valve clearance.
- Cover the timing belt with a rag to prevent oil from getting on the belt.
- Check the middle rocker arm of each cylinder at TDC.
1. Remove the cylinder head cover.
2. Close the outlet with a special tool (air plug).
3. Remove the bolt and washer from the inspection hole and attach the special tool (valve testing device).
4. Apply the required air pressure to the rocker arm piston after releasing the control valve in the valve testing device.
- Air pressure: 259 kPa (2.5 kgf/cm²) - 490 kPa (5.0 kgf/cm²)
5. Make sure that the primary and secondary rocker arms are firmly connected by the pistons and that the middle rocker arm does not turn when pressed with a finger.
If the middle rocker arm turns independently of the primary and secondary rocker arms, replace the rocker arms as an assembly.
6. Remove the special tools.
7. Check the operation of the return device by pressing the middle rocker arm. The return device should fully compress and operate smoothly throughout its stroke. Replace the device if it does not operate smoothly (evenly).
8. After inspection, check that the malfunction indicator lamp (MIL) does not illuminate.