1. Remove the sealing bolt (A) from the relief hole, and install the VTEC air stopper (B).

1. Remove the No. 3 camshaft holder bolts, and install the VTEC air adapters (C) finger-tight.

1. Connect the air joint adapter (D) and valve inspection set (E).

1. Loosen the valve on the regulator, and apply the specified air pressure.

   Specified Air Pressure:
   290 kPa (3.0 kgf/cm 2 , 42 psi)

   NOTE: If the synchronizing piston does not move after applying air pressure; move the rocker arm up and down manually by rotating the crankshaft.