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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> External Pages >> Different car >> Section 208 (2.4L Engine (Service Information)) >> Engine Block >> Rod-Connecting & Piston >> Removal >> Piston And Connecting Rod

Piston And Connecting Rod

WARNING: This page is about a different car, the 2007 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: View Of Oil Pan
GC0042812Courtesy of CHRYSLER LLC
  1. Remove cylinder head. Refer to REMOVAL .
  2. Remove oil pan (3). Refer to REMOVAL .
    Fig 2: Identifying Piston Markings
    GC0021224Courtesy of CHRYSLER LLC
  3. Remove Balance Shaft Carrier Assembly. See REMOVAL .
  4. Remove top ridge of cylinder bores with a reliable ridge reamer before removing pistons from cylinder block. Be sure to keep tops of pistons covered during this operation  .
  5. Pistons have a directional stamping in the front half of the piston facing towards the front  of engine. See Fig 2.
  6. Pistons and connecting rods must be removed from top of cylinder block. Rotate crankshaft so that each piston is centered in the bore.
    Fig 3: Marking Connecting Rod & Bearing Cap Position
    GC0003926Courtesy of CHRYSLER LLC
  7. Using a permanent ink or paint marker, identify cylinder number on each connecting rod cap.
    CAUTION: DO NOT use a number stamp or a punch to mark connecting rods. Damage to connecting rod could occur.
  8. Remove connecting rod bolts and cap. Care should be taken not to damage the fracture rod and cap surfaces.
    NOTE: Do not reuse connecting rod bolts.
    CAUTION: Care must be taken not to damage the fractured rod and cap joint surfaces, as engine damage may occur.
    Fig 4: Oil Jet Fastener - 2.4L Turbo
    GC0021225Courtesy of CHRYSLER LLC
    NOTE: On Turbocharger equipped engines, be careful not to damage the oil jet (2) when removing piston/connecting rod. See Fig 4.
    Fig 5: Connecting Rod Guides
    GC0015336Courtesy of CHRYSLER LLC
  9. To protect crankshaft journal and fractured rod surfaces, install Connecting Rod Guides 8189 onto connecting rod. Carefully push each piston and rod assembly out of cylinder bore.
  10. Remove Connecting Rod Guides 8189, connecting rod guides and re-install bearing cap on the mating rod.
    NOTE: Piston and rods are serviced as an assembly.
  11. Repeat procedure for each piston and connecting rod assembly.
  12. Remove piston rings. Refer to REMOVAL .
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