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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 157 (Engine Mechanical - 2.0L (LSY) - Repair Instructions (2 Of 3)) >> Repair Instructions >> Cylinder Head Overhaul >> Cylinder Head Measurement

Cylinder Head Measurement

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
GM5028406
  1. Using a straightedge (1), inspect the cylinder head sealing surface for flatness. 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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