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Home >> Geo >> 1990 >> Metro Base, 4D Hatchback, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (1.0L 3-CYL - VIN [5] & 1.0L 3-CYL Turbo - VIN [2]) >> Removal & Installation >> Valve Guides Service >> Installation

Valve Guides Service: Installation

WARNING: This page is about a different car, the 1988 Chevrolet Sprint. However, it is still accessible from the selected car via links, so may be relevant.
  1. Prior to valve guide installation, ream valve guide bore in cylinder head with Reamer (J-34832) or a .472" (12.0 mm) reamer. Reamer will remove burrs caused by valve guide removal. Ensure diameter of bore is within specifications.
  2. Heat cylinder head to 176-212°F (80-100°C). Drive valve guide into guide bore using Valve Guide Remover/Installer (J-34834). Drive guide until installer contacts cylinder head. After installation, top of guide should measure .055" (14.0 mm) from surface of cylinder head.
  3. Ream valve guide bore with Reamer (J-34831) or a .472" (7.0 mm) reamer. After reaming, clean bore. Install valve spring seat. Install new oil seal using Oil Seal Installer (J-34835). Ensure seal is properly seated, using only hand pressure. To complete installation, reverse removal procedure.
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