VTEC Rocker Arm Test
VTEC Rocker Arm Test
Special Tools Required
- Air Pressure Regulator 07AAJ-PNAA101
1. Remove the four ignition coils and the four spark plugs Service and Repair.
2. Remove the cylinder head cover Cylinder Head Cover Removal.
3. Rotate the crankshaft pulley clockwise. Make sure that the intake secondary rocker arm (A) and the intake secondary rocker arm (B) are separated and that the intake secondary rocker arm (A) and the intake secondary rocker arm (B) should move independently:
- If the intake secondary rocker arm (A) and the intake secondary rocker arm (B) move together, remove secondary rocker arms as an assembly, then check that the pistons in the secondary rocker arms move smoothly. If any rocker arm needs replacing, replace the primary and the secondary rocker arms as an assembly, then retest.
- If intake secondary rocker arm A moves independently, go to step 4.
4. Check that the air pressure on the shop air compressor gauge indicates over 400 kPa (4.0 kgf/cm2, 57 psi).
5. Inspect the valve clearance Adjustments.
6. Install a 10 x 1.0 mm adapter to the inspection hole, then connect the air pressure regulator.
7. Loosen the valve on the air pressure regulator, and apply the specified air pressure.
8. With the specified air pressure applied, rotate the crankshaft pulley clockwise. Intake secondary rocker arm (A) should move together with intake secondary rocker arm (B):
- If intake secondary rocker arm (A) does and secondary rocker arm (B) move independently, remove the secondary rocker arms as an assembly, and check that the pistons in the secondary rocker arms move smoothly. If any rocker arm needs replacing, replace the primary and the secondary rocker arms as an assembly, then retest.
- If intake secondary rocker arm (A) and secondary rocker arm (B) move together, go to step 9.
9. Remove the air pressure regulator and the 10 x 1.0 mm adapter.
10. Install the cylinder head cover Cylinder Head Cover Installation.
11. Install the four spark plugs and the four ignition coils Service and Repair.