2021 Honda Pilot EliteFACTORY OEM SERVICE PROCEDURE

Engine Control System / Engine Mechanical - Service, Testing & Troubleshooting: Inspection: Valve: Inspection

  1. Valve - Remove
  2. Valve - Inspect
    GHH308427Courtesy of HONDA, U.S.A., INC.
    		 1. Measure the valve in these areas.
     
    NOTE:  The letter (D or S) is stamped on the exhaust valve head (E).
     
    Intake Valve Dimensions 
    A Standard (New): 116.55-117.15 mm (4.5886-4.6122 in) 
     
    B Standard (New): 35.9-36.1 mm (1.413-1.421 in) 
     
    C Standard (New): 5.485-5.495 mm (0.21594-0.21634 in) 
     
    C Service Limit: 5.485 mm (0.21594 in) 
     
     
    Exhaust Valve Dimensions 
     
    A Standard (New): 113.90-114.50 mm (4.4842-4.5079 in) 
     
    B Standard (New): 
    D: 29.85-30.15 mm (1.1752-1.1870 in) 
    S: 29.9-30.1 mm (1.177-1.185 in) 
     
    C Standard (New): 5.450-5.460 mm (0.21457-0.21496 in) 
     
    C Service Limit: 5.450 mm (0.21457 in) 
  3. All Removed Parts - Install
    1. Install the parts in the reverse order of removal.
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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.

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