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Piston, Ring, Pin, and Connecting Rod Removal and Installation: Installation

  1. Piston Pin - Install
    GHH81377Courtesy of HONDA, U.S.A., INC.
    		 1. Install a piston pin snap ring (A) only on one side

    2. Coat the piston pin bore in the piston, the bore in the connecting rod, and the piston pin with new engine oil.
    GHH81378Courtesy of HONDA, U.S.A., INC.
    		 3. Heat the piston to about 158°F (70°C).
    GHH81379GHH81380Courtesy of HONDA, U.S.A., INC.HONDA, U.S.A., INC.
    GHH81379GHH81380Courtesy of HONDA, U.S.A., INC.HONDA, U.S.A., INC.
    		 4. Assemble the piston (A) and the connecting rod (B) with the arrow (C) and the embossed mark (D) on the same side. Install the piston pin (E)

    5. Install the remaining snap ring (F)

    6. Turn the snap rings in the ring grooves until the end gaps are positioned at the bottom of the piston.
  2. Piston Ring - Install
    GHH81381GHH81382GHH81383Courtesy of HONDA, U.S.A., INC.HONDA, U.S.A., INC.HONDA, U.S.A., INC.
    GHH81381GHH81382GHH81383Courtesy of HONDA, U.S.A., INC.HONDA, U.S.A., INC.HONDA, U.S.A., INC.
    GHH81381GHH81382GHH81383Courtesy of HONDA, U.S.A., INC.HONDA, U.S.A., INC.HONDA, U.S.A., INC.
    		 1. Install the piston rings as shown.

    LASER MARK 
    TOP RING (A) SECOND RING (B)
    RK 1  RK 2 
    SRI 1  SRI 2 
    USHA 1  USHA 2 
    RW 1  RW 2 
    ARC 1  ARC 2 
    1TT  2TT 
    1TA  2TA 
    1TU  2TU 

    2. The manufacturing marks (C) must be facing upward.

    3. After installing a new set of rings, measure the ring-to-groove clearances.

    Ring-to-Groove Clearance 

    Top Ring 
    Standard (New):  0.065-0.090 mm (0.003 in)
    Service Limit:  0.130 mm (0.005 in) 
    Second Ring 
    Standard (New): 
    RIKEN:  0.030-0.055 mm (0.002 in)
    TRP:  0.035-0.060 mm (0.002 in)
    Service Limit:  0.120 mm (0.004 in) 
    GHH81384Courtesy of HONDA, U.S.A., INC.
    GHH81385Courtesy of HONDA, U.S.A., INC.
    		 4. Rotate the rings in their grooves to make sure they do not bind

    5. Position the ring end gaps as shown.
  3. Piston/Connecting Rod Assembly - Install
    GHH81386Courtesy of HONDA, U.S.A., INC.
    		 1. Remove the connecting rod caps, then install the ring compressor, and check that the bearing is securely in place

    2. Apply new engine oil to the piston, inside of the ring compressor, and the cylinder bore, then attach the ring compressor to the piston/connecting rod assembly

    3. Position the piston/connecting rod assembly with the arrow (A) facing the cam chain side of the engine block.
    GHH81387Courtesy of HONDA, U.S.A., INC.
    		 4. Position the piston/connecting rod assembly in the cylinder, and tap it in using the wooden handle of a hammer (A). Maintain downward force on the ring compressor (B) to prevent the rings from expanding before entering the cylinder bore

    5. Stop after the ring compressor pops free, and check the connecting rod-to-rod journal alignment before pushing the piston into place.
  4. Oil Jet - Install 
  5. Crankshaft - Install 
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