2021 Honda Ridgeline RTL, AWDFACTORY OEM SERVICE PROCEDURE

Valve Guide Replacement: Replacement

  1. Valve Seal and Valve Spring Seat - Remove
  2. Valve Guide - Remove
    GHH455006Courtesy of HONDA, U.S.A., INC.
    		 1. As illustrated, use a commercially available air-impact valve guide driver (A) modified to fit the diameter of the valve guides. In most cases, the same procedure can be done using the valve guide driver, 5.35 x 9.7 mm and a conventional hammer.

    2. Select the proper replacement valve guides, and chill them in the freezer section of a refrigerator for at least an hour.
    GHH455007Courtesy of HONDA, U.S.A., INC.
    		 3. Use a hot plate or an oven to evenly heat the cylinder head to 300°F (150°C). Monitor the temperature with a cooking thermometer. Do not get the cylinder head hotter than 300°F (150°C); excessive heat may loosen the valve seats.
    GHH455008GHH455009Courtesy of HONDA, U.S.A., INC.HONDA, U.S.A., INC.
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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.