C1.1, C1.5 and C2.2 Engines for Caterpillar Built Machines Pistons and Connecting Rods - Assemble Caterpillar


Pistons and Connecting Rods - Assemble
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C1.1, C1.5 and C2.2 Engines for Caterpillar Built Machines [KENR8103]
1.1. Assembly Procedure

Assembly Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
A  1P-1857  Retaining Ring Pliers 
B  1U-6683  Ring Expander 
C  1P-0510  Driver Gp 


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


  1. If the piston pin bushing was removed, use a suitable press and Tooling (C) to install a new piston pin bushing into connecting rod (1).

    Note: Lubricate all components with clean engine oil.



    Illustration 1g00829406
    Typical example

    Note: Refer to Specifications, "Pistons and Rings" for more information on piston identification.

  2. Use the following procedure with Tooling (B) to install piston rings on piston (2).


      Illustration 2g00836010
      Typical example


      Illustration 3g01128283
      Typical example

    1. Install oil control piston ring (7) in the groove that is lowest on the piston. The latch pin (9) that is on the oil control ring (7) must be inside the ends of spring (10).

      Note: Ensure that the latch pin that is on the oil control ring is 180 degrees from the oil control ring gap.



      Illustration 4g01038129
      Typical example

    2. Install the intermediate piston ring (6) with the tapered face into the second groove on the piston. The step (Y) must be toward the top of the piston.

    3. Install the top piston ring (5) with the barrel and the molybdenum insert into the top groove on the piston. The scribe mark must be toward the top of the piston.

    4. Position the piston ring gaps at 90 degrees away from each other.


    Illustration 5g01038130
    Typical example

  3. Align identification marks (Z) on connecting rod (1) and piston (2).

    Note: The Shibaura name inside the piston must align with the stamped number on the connecting rod.

  4. Install piston pin (3) into piston (2) and connected rod (1).

    Note: If the piston pin cannot be installed by hand, heat the piston to a temperature of 45 ± 5 °C (113 ± 9 °F). Do not use a oxyacetylene torch to heat the piston. Mark the piston pin for installation.

  5. Use Tooling (A) to install two retaining rings (4).


    Illustration 6g01128280
    Typical example

  6. Install the bearing shells (13) to the connecting rod (1) and the connecting rod cap (12).

  7. Install the connecting rod cap (12) and the connecting rod nuts (11) to the connecting rod (1).

End By:

  1. Install the pistons and the connecting rods. Refer to Disassembly and Assembly, "Piston and Connecting Rods - Install".

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