VTEC Rocker Arms
TestSpecial Tools Required
Air regulator 07AAJ-PNAA100
1. Remove the cylinder head cover.
2. Set the No. 3 piston at top dead center (TDC).
3. Move the primary rocker arms (A) for the No. 3 cylinder. The primary rocker arm and secondary rocker arm (B) should move together.
^ If the secondary rocker arm does not move, remove the primary and secondary rocker arms as an assembly, and check that the pistons in the primary and secondary rocker arms move smoothly. If any rocker arm needs replacing, replace the primary and secondary rocker arms as an assembly, and test.
^ If the primary rocker arm and secondary rocker arm move together, go to step 4.
4. Repeat step 3 on the No. 4 and No. 2 primary rocker arms with each piston at TDC. When all the primary rocker arms pass the test, go to step 5.
5. Check that the air pressure on the shop air compressor gauge indicates over 400 kPa (4 kgf/cm2, 57 psi).
6. Inspect the valve clearance.
7. Connect the air pressure regulator with a 0 - 100 psi gauge (A) to the inspection hole (B).
8. Loosen the valve on the regulator, and apply the specified air pressure.
Specified Air Pressure: 200 kPa (2.0 kgf/cm2, 28 psi)
9. With the specified air pressure applied, move the primary rocker arm (A) for the No. 3 cylinder. The primary rocker arm should move independently of the secondary rocker arm (B).
^ If the primary rocker arm does not move freely, remove the primary and secondary rocker arms as an assembly, and check that the pistons in the primary and secondary rocker arms move smoothly. If any rocker arm needs replacing, replace the primary and secondary rocker arms as an assembly, and test.
10. Repeat step 9 on the No. 4 and No. 2 primary rocker arms with each piston at TDC.
11. Remove the air pressure regulator.
12. Install the cylinder head cover.