Page 73 - CTS - Mechanic Diesel - TP
P. 73

MECHANIC DIESEL - CITS



           EXERCISE 2.24: Measure the  cylinder  bore  taper,  ovality

                                       and flatness


            Objectives

           At the end of this exercise you shall be able to
           •  check cracks and flatness of cylinder block
           •  check taper  and ovality of cylinder bore and clean oil passages.

           Requirements


           Tools/Instruments                                   Materials/Components
           •  Trainee’s tool kit            - 1 No.            •  Tray                          - 1 No.
           •  Straight edge, Feeler gauge   - 1 No.            •  Banian cloth                  - as reqd.
           •  Bore dial gauge               - 1 No.            •  Kerosene                      - as reqd.
           Equipments/Machines                                 •  Soap oil                      - as reqd.
                                                               •  Lube oil                      - as reqd.
           •  Engine cylinder block         - 1 No.
           •  Air compressor, Water washer   - 1 No.


           Procedure


           TASK 1: Check flatness of cylinder block with straight edge
           •   Place the cylinder block on two wooden blocks.

           •   Clean the top plain surface of the cylinder block.
           •   Wipe the plain surface with clean banian cloth.
           •   Keep the straight edge on the surface of the cylinder block and press the straight edge at the centre with your
              left hand.

           •   Insert the feeler gauge leaves between the straight edge and the surface of the cylinder block (Fig 1).

              Fig 1
































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