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Home >> GMC >> 2018 >> Terrain Denali, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Mechanical - 1.6L (LH7) Diesel) >> Repair Instructions - Off Vehicle >> Cylinder Head Cleaning And Inspection >> Cylinder Head Measurement

Cylinder Head Measurement

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    Fig 1: Using Straightedge To Inspect Cylinder Head Sealing Surface For Flatness
    GM2189666Courtesy of GENERAL MOTORS COMPANY
  1. Inspect the cylinder head sealing surface for flatness. Use a straightedge (1).
  2. Turn the cylinder head upside down.
    3. Fig 2: Using Dial Indicator To Measure Valve Assembly Height
    GM4623262Courtesy of GENERAL MOTORS COMPANY
  3. Loosely install one valve to the cylinder head.
  4. Place the GE-7872  indicator (1) to the cylinder head sealing surface and measure the valve assembly height. Refer to Engine Mechanical Specifications  to find the permitted values.
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