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) |

Disassembly
Compress the damper spring, then remove the nut (A) while holding the
damper shaft with a hex wrench (B). Do not compress the damper spring more
than necessary to remove the nut.
...
Regulator Valve Body Disassembly, Inspection, and Reassembly (A/T)
Clean all parts thoroughly in solvent, and dry them with compressed air.
Blow out all passages except the air check valve filter.
Inspect the regulator valve body for scoring and ...
Power Mirror Switch Test/Replacement
Remove the instrument panel.
Disconnect the 13P connector from the power mirror switch (A).
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