Remove the valves.
Measure the valve in these areas.
Intake Valve Dimensions
|
A Standard (New): |
27.85пјЌ28.15 mm (1.0965пјЌ1.1083 in) |
|
B Standard (New): |
118.55пјЌ119.15 mm (4.6673пјЌ4.6909 in) |
|
C Standard (New): |
5.48пјЌ5.49 mm (0.2157пјЌ0.2161 in) |
|
C Service Limit: |
5.45 mm (0.2146 in) |
Exhaust Valve Dimensions
|
A Standard (New): |
22.85пјЌ23.15 mm (0.8996пјЌ0.9114 in) |
|
B Standard (New): |
117.25пјЌ117.85 mm (4.6161пјЌ4.6398 in) |
|
C Standard (New): |
5.45пјЌ5.46 mm (0.2146пјЌ0.2150 in) |
|
C Service Limit: |
5.42 mm (0.2134 in) |

A/C System Charging (With A/C)
caution
Air conditioning refrigerant or lubricant vapor can irritate your
eyes, nose, or throat.
Be careful when connecting service equipment.
...
A/C Refrigerant Oil Replacement (With A/C)
Special Tools Required
Oil Injector Tool Robinair ROB16256, commercially available
*This tool is available through the Honda Tool and Equipment Program; call
888-424-6857
Recommended PA ...
Warm Up TWC Removal/Installation
NOTE: If the warm up TWC is damaged internally, inspect the under-floor TWC
for debris.
Raise the vehicle on a lift.
Remove the bolts (A).
Lower the vehicle.
...