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Rod, Piston And Connecting: Installation: Piston

WARNING: This page is about a different variant/trim than selected.
GC0146776Courtesy of CHRYSLER GROUP, LLC
  1. Identify the correct piston to cylinder location on left front of engine block.
    GC0146777Courtesy of CHRYSLER GROUP, LLC
  2. Identify the piston by the lettering shown on piston crown.
  3. Using the reference table below select the correct piston to location.
    NOTE:

    The first letter correspond to the first cylinder, the second letter to the second one etc.

    Piston Letter On Crown A A B B C C
    Cylinder Piston Location 1 2 3 4 5 6
  4. Before installing the piston, make sure the oil ring expander ends are butted together.
  5. Immerse the piston head and rings in clean engine oil, slide the piston installer over the piston and tighten. Ensure position of rings does not change during this operation  .
    GC0146783Courtesy of CHRYSLER GROUP, LLC
  6. When installing the pistons and connecting rod assembly, making sure that the arrow stamped on the piston crown (1) is turned toward the back side of the engine (flywheel side) for the right bank pistons 1 2 3 and toward the front side of the engine (timing chain side) for the left bank pistons 4 5 6.
    GC0146731Courtesy of CHRYSLER GROUP, LLC
  7. Each connecting rod has its own letter class identification mark (2) on connecting rod for bearing selection.
    GC0146732Courtesy of CHRYSLER GROUP, LLC
  8. To determine the correct bearing size for each cylinder. Each connecting rod letter class must be matched with the crankshaft letter class (1) with the bearing selection chart to determine the correct bearing color for each cylinder. The letters stamped into the crankshaft (1) are in the same order as the cylinders. The first letter corresponds to the first cylinder, the second to the second, etc. See bearing selection chart. Refer to STANDARD PROCEDURE .
    CAUTION:

    Care must be taken not to nick the crankshaft journal or cylinder bore when installing the pistons.

  9. Rotate the crankshaft so that the connecting rod journal is on the center of the cylinder bore. Insert connecting rod and piston into cylinder bore and guide the connecting rod over the crankshaft journal.
  10. Guide the piston down in cylinder bore, using a hammer handle. At the same time, guide connecting rod into position on connecting rod journal.
    GC0146733Courtesy of CHRYSLER GROUP, LLC
  11. Assemble the connecting rod bearings (3) and bearing caps to their respective connecting rods (2) ensuring that the serrations on the cap and reference marks are aligned.
    NOTE:

    The connecting rod bolts must be replaced every time they are loosened or removed.

    NOTE:

    It is not necessary to lubricate the NEW connecting rod bolts.

  12. Using NEW  bolts, install and tighten the connecting rod cap bolts to:
    • Step 1: Tighten to 10 N.m (89 in. lbs.).
    • Step 2: Tighten each bolt to 25 N.m (18 ft. lbs.).
    • Step 3: Tighten each bolt an additional 75 degrees turn.
    • Step 4: With the torque wrench set at 50 N.m (37 ft. lbs.) to check the tightening of each bolt.
    GC0146759Courtesy of CHRYSLER GROUP, LLC
  13. Install the oil jets. Refer to JET, PISTON OIL COOLER, INSTALLATION .
    GC0146605Courtesy of CHRYSLER GROUP, LLC
  14. Install the windage tray (2). Tighten the bolts (1) to 11 N.m (8 ft. lbs.).
    GC0146702Courtesy of CHRYSLER GROUP, LLC
  15. Install the oil pump pickup tube (2). Refer to PICK-UP, OIL PUMP, INSTALLATION .
  16. Install both of the cylinder heads. Refer to CYLINDER HEAD, INSTALLATION .
  17. Connect negative battery cable.
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