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Home >> Honda >> 2021 >> Pilot EX, FWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System / Engine Mechanical - Service Information >> Removal And Installation >> Valve, Spring, And Valve Seal >> Installation
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Valve, Spring, And Valve Seal: Installation

  1. Valve Spring Seat - Install
    GHH308659Courtesy of HONDA, U.S.A., INC.
  2. Valve and Valve Seal - Install
    GHH308660Courtesy of HONDA, U.S.A., INC.
    1. Coat the valve stems with new engine oil. Install the valves in the valve guides.

    2. Check that the valves move up and down smoothly.

    3. Install new valve seals (A) using the 5.5 mm side of the stem seal driver.

    NOTE:  Exhaust valve seals (B) have a black spring (C) and intake valve seals (D) have a white or silver spring (E); they are not interchangeable.

  3. Valve Spring - Install
    GHH308661Courtesy of HONDA, U.S.A., INC.
    1. Install the valve spring and the spring retainer. Place the end of the valve spring with closely wound coils toward the cylinder head.

    2. Install the valve spring compressor attachment and the valve spring compressor. Compress the spring and install the valve cotters.

    3. Remove the valve spring compressor and the valve spring compressor attachment.

    GHH308662Courtesy of HONDA, U.S.A., INC.
    4. Lightly tap the end of each valve stem two or three times with a plastic mallet to ensure proper seating of the valve and the valve cotters. Tap the valve stem only along its axis so you do not bend the valve stem.
     
    NOTE:  Be sure to raise the cylinder head off the work bench to avoid damaging the valve.
  4. Camshaft - Install 
  5. Cylinder Head - Install - Refer to:

    Cylinder Head Removal and Installation (9-Speed A/T) (2019 2020 2021) or

    Cylinder Head Removal and Installation