Civic L4-1668cc 1.7L SOHC MFI (2003)
12. Remove the sealing bolt (A) from the inspection hole (B), and connect an air pressure regulator with a 0 - 100 psi gauge (C).
13. Loosen the valve on the regulator, and apply the specified air pressure.
Specified Air Pressure: 250 kPa (2.5 kgf/cm2, 36 psi)
NOTE: If the synchronizing piston does not move after applying air pressure, move the primary or secondary rocker arm up and down manually
by rotating the crankshaft counterclockwise.
14. Move the intake secondary rocker arm (A) for the No. 1 cylinder. The primary rocker arm (B) and secondary rocker arm should move together.
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If the intake primary rocker arm does not move, remove the primary and secondary rocker arms as an assembly and check that the pistons in
the secondary and primary rocker arms move smoothly. If any rocker arm needs replacing, replace the primary and secondary rocker arms as
an assembly, and retest.
15. Remove the special tools.