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Home >> Chevrolet >> 2012 >> Cruze LS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 270 (Engine Mechanical - 1.8L (2H0 Or LUW) - Repair Instructions - Off Vehicle (2 Of 2)) >> Engine Block Cleaning and Inspection >> Special Tools

Special Tools

WARNING: This page is about a different car, the 2011 Chevrolet Cruze. However, it is still accessible from the selected car via links, so may be relevant.

EN-8087:  Cylinder Gauge

For equivalent regional tools, refer to Special Tools .

    Fig 1: Engine Block
    GM2026861Courtesy of GENERAL MOTORS CORP.
  1. Clean the sealing material from the gasket mating surfaces (2).
  2. Clean the engine block (1) and lower crankcase in a cleaning tank with solvent appropriate for aluminum. Refer to Adhesives, Fluids, Lubricants, and Sealers for the recommended solvent.
  3. Flush the engine block with clean water or steam.
  4. Clean the oil passages.
  5. Clean the blind holes.
  6. Spray the cylinder bores and the machined surfaces with engine oil.
  7. Inspect the threaded holes. Clean the threaded holes with a rifle brush. If necessary, drill out the holes and install thread inserts. Refer to Thread Inserts .
  8. Fig 2: Inspecting Engine Block For Sag In Length And Width On Sealing Surfaces
    GM2026862Courtesy of GENERAL MOTORS CORP.
    NOTE: Do not attempt to machine the lower crankcase to engine block surfaces.
  9. Inspect the engine block for sag in length and width on the sealing surfaces.
  10. Fig 3: Inspecting Engine Block For Distortion Along Diagonals
    GM2026863Courtesy of GENERAL MOTORS CORP.
  11. Inspect the engine block for distortion along the diagonals.

    If the deck surface is out of specification, replace the block. Do not machine the block.

  12. Fig 4: Gasket Mating Surfaces
    GM2026763Courtesy of GENERAL MOTORS CORP.
  13. Clean the sealing material from the gasket mating surfaces (1) on the lower crankcase oil pan side.
  14. Fig 5: Gauge Tool
    GM2026766Courtesy of GENERAL MOTORS CORP.
  15. Inspect the crankshaft main bearing bores. Use the EN-8087:  gauge (1) to measure the bearing bore concentricity and alignment.
  16. Replace the engine block and bed plate if the crankshaft bearing bores are out of specification.
  17. Fig 6: Gauge Tool
    GM2026767Courtesy of GENERAL MOTORS CORP.
  18. Inspect the cylinder bores using the EN-8087:  gauge (1). Inspect for the following items:
    • Wear
    • Taper
    • Runout
    • Ridging
  19. Check the cylinder bores specifications. Refer to Engine Mechanical Specifications .
  20. If the cylinder bores are out of specification, replace the engine block.