Variable Cylinder Management Rocker Arm Test: Test

Ignition Coil and Spark Plug - Remove
Cylinder Head Cover - Remove

VTEC Rocker Arm - Test

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Front Bank

1. Rotate the crankshaft pulley clockwise. Make sure that the intake primary rocker arm (A) should move independently of the intake secondary rocker arm (B):

If the intake primary and secondary rocker arms do not move independently, remove the intake primary and secondary rocker arms 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 and secondary rocker arms move independently, go to step 2.

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Rear Bank

2. Rotate the crankshaft pulley clockwise. Make sure that the intake primary rocker arm (A) and the intake secondary L rocker arm (B) should move together, on the other hand, intake primary rocker arm and the intake secondary H rocker arm (C) should move independently:

If the intake primary and secondary L rocker arms do not move together, remove the intake primary, secondary L and H rocker arms as an assembly, and check that the pistons in the rocker arms move smoothly. If any intake rocker arm needs replacing, replace the intake primary, secondary rocker arms L and H as an assembly, then retest.
If the intake primary rocker arm and the intake secondary L rocker arms move together, go to step 3.

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3. Rotate the crankshaft pulley clockwise. Make sure that the exhaust primary rocker arms (A) and the exhaust secondary rocker arms (B) are mechanically connected by the pistons and that the exhaust primary rocker arm and the exhaust secondary rocker arms should move together:

If the exhaust primary and secondary rocker arms do not move together, remove the exhaust primary and secondary rocker arms as an assembly, and check that the pistons in the rocker arms move smoothly. If any exhaust rocker arm needs replacing, replace the exhaust primary and secondary rocker arms as an assembly, then retest.
If the exhaust primary and secondary rocker arms move together, go to the next procedure.

Air Pressure - Check

1. Check that the air pressure on the shop air compressor gauge indicates over 690 kPa (7.04 kgf/cm 2, 100.1 psi).
Valve Clearance - Inspect

VTEC/VCM Change Over - Test

FRONT (VTEC)

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REAR (VTEC)

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REAR (VCM)

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1. Remove the sealing bolt, then install the VCM air adapter to the inspection hole and install VTEC air stop tool B, then connect the air supply as shown.

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

Specified Air Pressure

441-490 kPa (4.50-5.00 kgf/cm 2, 64.0-71.1 psi)

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Front (VTEC)

3. With the specified air pressure applied, rotate the crankshaft pulley clockwise. Make sure that the intake primary rocker arm (A) and the intake secondary rocker arm (B) are mechanically connected by the pistons and that the intake primary and secondary rocker arms should move together:

If the intake primary and secondary rocker arms move independently, remove the intake primary and secondary rocker arms 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 and secondary rocker arms move together, go to step 4.

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Rear (VTEC)

4. With the specified air pressure applied, rotate the crankshaft pulley clockwise. Make sure that the intake primary rocker arm (A) and the intake secondary L and H rocker arms (B) are mechanically connected by the pistons and that the intake primary and secondary L and H rocker arms should move together:

If the intake primary and secondary L and H rocker arms move independently, remove the intake primary, secondary L and H rocker arms as an assembly, and check that the pistons in the rocker arms move smoothly. If any intake rocker arm needs replacing, replace the primary, secondary L and H rocker arms as an assembly, then retest.
If the intake primary and secondary L and H rocker arms move together, go to step 5.

Courtesy of HONDA, U.S.A., INC.

Rear (VCM)

5. With the specified air pressure applied, rotate the crankshaft pulley clockwise. Make sure that the intake primary rocker arm (A) should move independently of the intake secondary L and H rocker arms (B). The exhaust primary rocker arms (C) should move independently of the exhaust secondary rocker arms (D):

If the intake primary, secondary L and H rocker arms do not move independently, remove the intake primary, secondary L and H as an assembly, and check that the pistons in the rocker arms move smoothly. If any intake rocker arm needs replacing, replace the primary, secondary L and H as an assembly, then retest.
If the exhaust primary and secondary rocker arms do not move independently, remove the exhaust primary and secondary rocker arms as an assembly, and check that the pistons in the rocker arms move smoothly. If any exhaust rocker arm needs replacing, replace the exhaust primary and secondary rocker arms as an assembly, then retest.
If the intake primary and secondary L and H rocker arms, and exhaust primary and secondary rocker arms move independently, go to next procedure.

All Special Tools - Remove
Sealing Bolt - Install

1. Torque the new sealing bolt to 22 N.m (2.2 kgf.m, 16 lbf.ft).
All Removed Parts - Install

1. Install the parts in the reverse order of removal.