Variable Cylinder Management Rocker Arm Test
Variable Cylinder Management Rocker Arm TestSpecial Tools Required
^ Air pressure regulator 07AAJ-PNAA101
^ VTEC air adapter 070AJ-001A101
^ VTEC air stopper 07VAJ-P8A020A
1. Start the engine and let it run for 5 minutes, then turn the ignition switch to LOCK (0).
2. Remove the six spark plugs.
3. Remove the cylinder head covers.
4. Rotate the crankshaft pulley clockwise. Make sure that the intake primary rocker arm (A) and intake secondary rocker arm (B) are mechanically connected by the pistons and that the intake primary rocker arm and the intake secondary rocker arm should move together.
^ If the intake secondary rocker arm moves independently, remove the intake primary rocker arm and the intake secondary rocker arm as an assembly, and check that the pistons in the rocker arms move smoothly. If any intake rocker arm needs replacing, replace the primary and secondary rocker arms as an assembly, then retest.
^ If the intake primary rocker arm and the intake secondary rocker arm move together, go to step 5.
5. Rotate the crankshaft pulley clockwise. Make sure that the exhaust primary rocker arm (A) and the exhaust secondary rocker arm (B) are mechanically connected by the pistons and that the exhaust primary rocker arm and the exhaust secondary rocker arm should move together.
^ If the exhaust primary rocker arm moves independently, remove the exhaust primary rocker arm and the exhaust secondary rocker arm as an assembly, and check that the pistons in the rocker arms move smoothly. If any exhaust rocker arm needs replacing, replace the primary and secondary rocker arms as an assembly, then retest.
^ If the exhaust primary rocker arm and the exhaust secondary rocker arm move together, go to step 6.
6. If repeat steps 4 and 5 for No. 1, No. 2, No. 3, and No. 4 cylinders. When the rocker arms pass the test, go to step 7.
7. Check that the air pressure on the shop air compressor gauge indicates over 200 kPa (2.0 kgf/cm2, 29 psi).
8. Inspect the valve clearance.
9. Remove the sealing bolt, then install the VTEC air adapter (A) to the inspection hole and install the VTEC air stopper (B), then connect the air pressure regulator (C) as shown.
10. Loosen the valve on the regulator, and apply the specified air pressure.
Specified Air Pressure:
200 kPa (2.0 kgf/cm2, 29 psi)
11. With the specified air pressure applied, rotate the crankshaft pulley clockwise. The intake secondary rocker arm (A) should move independently of the intake primary rocker arm (B).
^ If the intake secondary rocker arm does not move independently, remove the intake primary rocker arm and the intake secondary rocker arm as an assembly, and check that the pistons in the rocker arms move smoothly. If any intake rocker arm needs replacing, replace the primary and the secondary rocker arms as an assembly, then retest.
^ If the intake secondary rocker arm move independently, go to step 12.
12. With the specified air pressure applied, rotate the crankshaft pulley clockwise. The exhaust primary rocker arm (A) should move independently of the exhaust secondary rocker arm (B).
^ If the exhaust primary rocker arm does not move independently, remove the exhaust primary rocker arm and the exhaust secondary locker arm as an assembly, and check that the pistons in the rocker arms move smoothly. If any exhaust rocker arm needs replacing, replace the primary and the secondary rocker arms as an assembly, then retest.
^ If the exhaust primary rocker arm moves independently, go to step 13.
13. If repeat steps 11 and 12 for No. 1, No. 2, No. 3, and No. 4 cylinders. When the rocker arms pass the test, go to step 14.
14. Remove the air pressure regulator, the VTEC air adapter, and the VTEC air stopper.
15. Tighten the sealing bolts to 22 Nm (2.2 kgf-m, 16 lbf-ft).
16. Install the cylinder head covers.
17. Install the six spark plugs.