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) |

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 ...
Three Way Catalytic Converter
The three way catalytic converter contains precious metals that serve as catalysts,
promoting chemical reactions to convert the exhaust gasses without affecting the
metals.
The catalytic converte ...
Spark Plug Inspection
Remove the ignition coils and the spark plugs.
Inspect the electrodes and the ceramic insulator:
Burned or worn electrodes may be caused by these conditions:
...