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Home >> Jeep >> 2012 >> Compass Limited, AWD, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 398 (5.7L Engine (Service Information)) >> Engine Block >> Rod, Piston And Connecting >> Removal >> Removal
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Rod, Piston And Connecting: Removal: Removal

WARNING: This page is about a different car, the 2015 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform the fuel system pressure release procedure. Refer to FUEL DELIVERY, GAS, STANDARD PROCEDURE .
  2. Disconnect and isolate the negative battery cable.
  3. Remove the cylinder head(s). Refer to CYLINDER HEAD, REMOVAL, 5.7L  .
  4. Remove the oil pan. Refer to PAN, OIL, REMOVAL, 5.7L  or PAN, OIL, AWD, REMOVAL, 5.7L  .
  5. Remove support and lower the vehicle.
  6. If necessary, remove the ridge on top of the cylinder bores with a reliable ridge reamer before removing the pistons from the cylinder block. Be sure to keep the tops of the pistons covered during this operation. 
    Fig 1: Identifying Mark On Connecting Rod And Bearing Cap
    GC0081782Courtesy of CHRYSLER GROUP, LLC
    CAUTION:

    Do not use a number stamp or a punch to mark connecting rods or caps, as damage to connecting rods could occur.

    NOTE:

    Connecting rods and bearing caps are not interchangeable and should be marked before removal to ensure correct reassembly.

  7. Raise and support the vehicle.
  8. Mark the connecting rod and bearing cap positions using a permanent ink marker or scribe tool.
    Fig 2: Connecting Rod Guides
    GC0094864Courtesy of CHRYSLER GROUP, LLC
    CAUTION:

    Care must be taken not to damage the fractured rod and cap joint face surfaces, as engine damage may occur.

    CAUTION:

    Care must be taken not to nick crankshaft journals, as engine damage may occur.

    NOTE:

    Pistons and connecting rods assemblies must be removed from the top of cylinder block. When removing the piston and connecting rod assemblies from the engine, rotate the crankshaft so each connecting rod is centered in the cylinder bore.

  9. Remove the connecting rod cap, install the Connecting Rod Guides (special tool #8507, Guides, Connecting Rod) (1) and carefully remove the piston from the cylinder bore, repeat this procedure for each piston being removed.
  10. Immediately after removing the piston and connecting rod, install the bearing cap on the mating connecting rod to prevent damage to the fractured cap and rod surfaces.
  11. Carefully remove the piston rings from the piston(s), starting from the top ring down.
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