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Home >> Chevrolet >> 2015 >> Malibu LS >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 2.0L (LTG) Or 2.5L (LKW) - Repair Instructions - Off Vehicle >> Repair Instructions - Off Vehicle >> Engine Block Cleaning and Inspection >> Measuring Cylinder Bore Diameter

Measuring Cylinder Bore Diameter

  1. Check the cylinder condition. Some light vertical marks may be visible on the cylinder wall. In these areas, check that the honing marks are still visible in this marked area. If they are, the cylinder surface has not been compromised and the engine block can be used.
    Fig 1: Measuring Cylinder Bore
    GM4972Courtesy of GENERAL MOTORS COMPANY
  2. Measure the cylinder bore diameter 35 mm (1.378 in) from the deck face using the EN-8087  gauge.
  3. Compare your results with the Engine Mechanical Specifications (LTG) and Engine Mechanical Specifications (LKW) . If the cylinder diameter exceeds the specifications, replace the engine block.
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