Chevrolet Sonic manuals

Chevrolet Sonic Repair Manual: Engine Block Cleaning and Inspection

Special Tools

EN-8087 Cylinder Gauge

For equivalent regional tools, refer to Special Tools.


    Clean the sealing material from the gasket mating surfaces (2).
  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. 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. 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.


  11. Clean the sealing material from the gasket mating surfaces (1) on the lower crankcase oil pan side.

  12. Inspect the crankshaft main bearing bores. Use the EN-8087 gauge  (1) to measure the bearing bore concentricity and alignment.
  13. Replace the engine block and bed plate if the crankshaft bearing bores are out of specification.

  14. Inspect the cylinder bores using the EN-8087 gauge  (1). Inspect for the following items:
  • Check the cylinder bores specifications. Refer to Engine Mechanical Specifications.
  • If the cylinder bores are out of specification, replace the engine block.
  • Engine Block Disassemble
    Remove the cylinder head locating (1, 2). Remove the oil pressure switch (1). Remove the knock sensor bolt (2) and the knock sensor (1). Clea ...

    Cylinder Block
    ...

    Other materials:

    Hood Rear Seal Replacement
    Hood Rear Seal Replacement Callout Component Name 1 Hood Rear Seal Procedure Clean the area where the seal will be mounted. Use a suitable solvent with a mixture of 50?€‰percent isopropyl alcohol and 50? ...

    Throttle Body Heater Inlet Hose Replacement (LUW)
    Throttle Body Heater Inlet Hose Replacement Callout Component Name Preliminary Procedure Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement. Drain the cooling system. Refer to Cooling System ...

    Crankcase Ventilation System Inspection/Diagnosis
    Results of Incorrect Operation A plugged positive crankcase ventilation (PCV) orifice or hose may cause the following conditions: Rough idle Stalling or slow idle speed Oil leaks Oil in the throttle body Sludge in the engine Functional Check With thes ...

    © 2014-2019 Copyright www.csmans.com
       
    0.0158