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Home › Jeep › 2021 › Renegade Islander, FWD › Repair and Diagnosis › Engine Mechanical › Mechanical › 2.4L Engine (Service Information) › Engine Block › Rod, Piston And Connecting › Removal And Installation › Removal

Removal And Installation: Removal

  1. Remove the engine from the vehicle and separate the transmission and flexplate from the engine. Refer to REMOVAL AND INSTALLATION  .
  2. Remove the cylinder head and oil pan for inspection. Refer to REMOVAL AND INSTALLATION  .
    GC0169024Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    If the timing chain plated links (1) can no longer be seen, the timing chain links corresponding to the timing marks (2) must be marked prior to removal if the chain is to be reused.

  3. Mark chain link (1) corresponding to crankshaft sprocket timing mark (2).
    GC0165462Courtesy of CHRYSLER GROUP, LLC
  4. Mark the chain link (1) corresponding to balance shaft/oil pump sprocket timing mark.
    GC0084902Courtesy of CHRYSLER GROUP, LLC
  5. Reset the balance shaft/oil pump chain tensioner by pushing the plunger inward and installing a pin to hold the plunger in the retracted position.
    GC0169243Courtesy of CHRYSLER GROUP, LLC
  6. Remove the two bolts (4) and the tensioner (3).
  7. Remove the tensioner arm bolt (2) and the tensioner arm (1).
  8. Remove the fixed chain guide bolts (5) and the chain guide (6).
    GC0164673Courtesy of CHRYSLER GROUP, LLC
  9. Remove the screws (1a), disengage the chain from the engine oil pump control and remove the oil pump assembly - balancing assembly (1b).
    GC0169512Courtesy of CHRYSLER GROUP, LLC
  10. Remove the crankshaft sprocket (1).
    GC0098645Courtesy of CHRYSLER GROUP, LLC
  11. Insert a flat bladed screwdriver (7) between the dust lip (8) and the metal case (4) of the crankshaft seal (1). Angle the screwdriver through the dust lip against the metal case of the seal. Pry out the seal.
    CAUTION:

    Do not permit the screwdriver blade to contact crankshaft seal surface. Contact of the screwdriver blade against crankshaft edge (chamfer) is permitted.

  12. Check to make sure the seals garter spring is also removed and is not on the crankshaft.
    GC0164450Courtesy of CHRYSLER GROUP, LLC
  13. Loosen the clamps and disconnect the water supply and return hoses (1) to the engine oil cooler.
    GC0164262Courtesy of CHRYSLER GROUP, LLC
  14. Unlock the engine oil filter and remove it using an appropriate oil filter wrench (1).
    GC0164226Courtesy of CHRYSLER GROUP, LLC
  15. Remove the screws and remove the heat shield (1).
    GC0165352Courtesy of CHRYSLER GROUP, LLC
  16. Unscrew the filler (1) and remove the motor oil cooler.
    GC0169358Courtesy of CHRYSLER GROUP, LLC
  17. Remove the three bolts (2) and the generator mounting bracket (1) from the engine.
    GC0169431Courtesy of CHRYSLER GROUP, LLC
  18. Remove the three bolts (2) and the intermediate shaft bearing support (1) from the engine, if equipped.
    GC0121277Courtesy of CHRYSLER GROUP, LLC
  19. Remove the ladder frame bolts and separate the ladder frame from the engine block.
    GC0162220Courtesy of CHRYSLER GROUP, LLC
  20. Loosen the ten main bearing cap bolts.
  21. Remove the bearing beam bolts (1 - 6) and remove the bearing beam. Temporarily install main bearing cap bolts (M10 x 1.25 x 76.5) into the unsupported No. 2, 3 and 5 main bearing caps hand tight.
    GC0081705Courtesy of CHRYSLER GROUP, LLC
    NOTE:

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

    CAUTION:

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

  22. Mark connecting rod and bearing cap positions (1) using a permanent ink marker or scribe tool.
    GC0152767Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    Typical I4 engine configuration shown.

  23. If necessary, remove the top ridge of the cylinder bores with a reliable ridge reamer before removing the pistons from the engine block. Be sure to keep the tops of pistons covered during this operation.  Pistons and connecting rods must be removed from the top of the engine block. When removing piston and connecting rod assemblies from the engine, rotate the crankshaft CW so that each connecting rod is centered in the cylinder bore.
  24. Remove the connecting rod cap bolts (4) and the connecting rod cap (3). Discard the cap bolts (4).
    CAUTION:

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

  25. Install the (Special Tool No. 10281, Pins, Connecting Rod Guide) (6) on the connecting rod being removed.
    CAUTION:

    Avoid contact with the piston oil cooler jet(s). Positioning of the oil cooler jet(s) is critical for proper engine operation.

  26. Remove the connecting rod and piston assembly (1) complete with upper bearing shell (7) from the cylinder bore.
  27. Repeat the previous steps for each piston being removed.
  28. Immediately after piston and connecting rod removal, reinstall the bearing cap (3) on the mating connecting rod to prevent damage to the fractured cap and rod surfaces.
  29. If required, remove the piston rings. Refer to REMOVAL AND INSTALLATION  .
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