VTEC Rocker Arm Test
Special Tools Required

Air supply, 3/8
 07LAJ-PR30102

Air adapter, M10 x 1.0
 070AJ-0010101
  1. Start the engine, and let it run for 5 minutes, then turn the ignition switch to LOCK (0).
  1. Remove the cylinder head cover.
  1. Set the No. 1 piston at top dead center (TDC).
  1. Move the intake secondary rocker arm A for the No. 1 cylinder. The secondary rocker arm A should move independently of the secondary rocker arm B.
    • If the intake secondary rocker arm A moves freely, go to Step 5 .
    • If the intake secondary rocker arm A does not move, remove the 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 secondary rocker arms as an assembly, then retest.
  1. Repeat Step 4 on the remaining intake secondary rocker arms with each piston at TDC. When all the secondary rocker arms pass the test, go to Step 6 .
  1. Check that the air pressure on the shop air compressor gauge indicates over 400 kPa (4 kgf/cm 2 , 57 psi).
  1. Inspect the valve clearance.