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Home >> Chevrolet >> 2021 >> Trailblazer RS, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 1.2L (LIH)) >> Repair Instructions >> Cylinder Head Cleaning and Inspection >> Cylinder Head Measurement

Cylinder Head Measurement

WARNING: This page is about a different variant/trim than selected.
GM5386377Courtesy of GENERAL MOTORS COMPANY
  1. Inspect the cylinder head sealing surface for flatness. Use a straightedge (1). If the cylinder head sealing surface is uneven, replace the cylinder head. Do NOT machine the cylinder head.
  2. Inspect all the threaded holes for damage. Threads may be reconditioned with thread inserts.
  3. Inspect the sealing surfaces.
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