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Home >> Hyundai >> 2017 >> Elantra GT Automatic Trans >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Cylinder Block >> Piston And Connecting Rod >> Repair Procedures >> Reassembly

Repair Procedures: Reassembly

NOTE:
  • Thoroughly clean all parts to be assembled.
  • Before installing the parts, apply fresh engine oil to all sliding and rotating surfaces.
  1. Assemble the piston and the connecting rod.
    1. Install the snap ring (A) in one side of the piston pin hole.
    2. Align the piston front mark and the connecting rod front mark.
    3. Insert the piston pin (B) into the piston pin hole and the small end bore of connecting rod.
    4. Install the snap ring (C) in the other side after inserting the piston pin.
      Fig 1: Installing Snap Ring In One Side Of Piston Pin Hole
      G12074188Courtesy of HYUNDAI MOTOR AMERICA
      NOTE: Apply a sufficient amount of engine oil to outer surface of the piston, inner surface of piston pin hole and small end bore of the connecting rod before inserting the piston pin.
      NOTE:
      • Be careful not to damage and scratch the small end bore, piston pin hole and piston pin when inserting the piston pin.
      • Set the snap ring firmly so that the snap ring can contact with the whole groove of the piston pin hole.
  2. Install the piston rings.
    1. Install the oil ring spacer and 2 side rails by hand.
    2. Using a piston ring expander, install the 2 compression rings with the maker mark facing upward.
    3. Position the piston rings so that the ring ends are as shown in the illustration below. (The No. 1 ring should be on the opposite side of the No. 2 ring.)

      Example)

      Fig 2: Positioning Piston Rings Ring Ends
      G12074189Courtesy of HYUNDAI MOTOR AMERICA
      NOTE: Check to ensure that the oil ring can be turned smoothly.
  3. Install the connecting rod bearings.
    1. Align the bearing claw with the groove of the connecting rod or connecting rod cap.
    2. Install the bearings (A) in the connecting rod and connecting rod cap (B).
      Fig 3: Installing Bearings In Connecting Rod And Connecting Rod Cap
      G12074190Courtesy of HYUNDAI MOTOR AMERICA
      NOTE: Be careful not to change the position of bearing caps.
  4. Install the piston and connecting rod assemblies.
    • Before installing the piston, apply a coat of engine oil to the ring grooves and cylinder bores.
    • Install the piston and connecting rod assembly with the front marks facing the front of the engine.
    1. Install the ring compressor, check that the rings are securely in place, and then position the piston in the cylinder, and tap it in using the wooden handle of a hammer.
      Fig 4: Installing Ring Compressor
      G12074191Courtesy of HYUNDAI MOTOR AMERICA
    2. Stop after the ring compressor pops free, and check the connecting rod-to-crank journal alignment before pushing the piston into place.
    3. Apply engine oil to the bolt threads. Install the rod caps with bearings, and tighten the bolts.

      Tightening torque 

      1st step:

      17.7 ~ 21.6 N.m (1.8 ~ 2.2 kgf.m, 13.0 ~ 15.9 lb-ft)

      2nd step: 88 ~ 92°

      Using the SST (09221-4A000), tighten the connecting rod cap bolts.

      Fig 5: Tightening Connecting Rod Cap Bolts
      G12074192Courtesy of HYUNDAI MOTOR AMERICA
      NOTE: Do not reuse the connecting rod cap bolts.
      NOTE: Maintain downward force on the ring compressor to prevent the rings from expending before entering the cylinder bore.
  5. Check the connecting rod end play.
  6. Assemble the other parts in the reverse order of disassembly.
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