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Home >> Isuzu >> 1992 >> Impulse XS, 2D Hatchback, Standard >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 1.6L 4-CYL - VINS [4,5,6] & 1.8L 4-CYL - VIN [8] >> Overhaul >> Valve Guides

Valve Guides

  1. Check valve stem-to-guide oil clearance. Ensure valve stem diameter is within specification. Replace valve guide if clearance exceeds specification. Manufacturer recommends replacing valve and valve guide as a set. See CYLINDER HEAD  table under ENGINE SPECIFICATIONS.
  2. To replace valve guide, use hammer and Valve Guide Remover/Installer (J-37985) on DOHC. On SOHC, use hammer and Valve Guide Remover/Installer Adapter (J-38462) with Remover/Installer (J-37985). On all engines, drive valve guide out from combustion side of cylinder head. Apply engine oil to the outside of new valve guide.
  3. Using hammer and valve guide remover/installer, drive valve guide into cylinder head.
  4. Measure valve guide installed height from top of valve guide to cylinder head surface. Ensure valve guide installed height is within specification. See CYLINDER HEAD  table.
  5. Using reamer, ream valve guide to obtain specified valve stem-to-guide oil clearance. See CYLINDER HEAD table.
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