Valve Inspection

2002 Honda Civic SiSECTION Valve Inspection
WARNING: This page is about a different variant/trim than selected.

Measure the valve in these areas.

Intake Valve Dimensions 

  1. A Standard (New): 29.85 - 30.15 mm (1.175 - 1.187 in.)
  2. B Standard (New): 118.27 - 118.87 mm (4.656 - 4.680 in.)
  3. C Standard (New): 5.480 - 5.490 mm (0.2157 - 0.2161 in.)
  4. C Service Limit: 5.45 mm (0.215 in.)

Exhaust Valve Dimensions 

  1. A Standard (New): 25.85 - 26.15 mm (1.018 - 1.030 in.)
  2. B Standard (New): 115.65 - 116.25 mm (4.553 - 4.577 in.)
  3. C Standard (New): 5.450 - 5.460 mm (0.2146 - 0.2150 in.)
  4. C Service Limit: 5.42 mm (0.213 in.)
Fig 1: Measuring Valves
G01401612Courtesy of AMERICAN HONDA MOTOR CO., INC.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.