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Crankshaft Installation

Special Tools Required 

  1. M/T model: Install the crankshaft end bushing when replacing the crankshaft. Using the handle driver and oil seal driver attachment, drive in the crankshaft end bushing until the oil seal driver attachment bottoms against the crankshaft.
    Fig 1: Installing Crankshaft End Bushing
    G05490226Courtesy of AMERICAN HONDA MOTOR CO., INC.
  2. Check the connecting rod bearing clearance with plastigage (see CONNECTING ROD BEARING REPLACEMENT  ).
  3. Check the main bearing clearance with plastigage (see CRANKSHAFT MAIN BEARING REPLACEMENT  ).
  4. Install the bearing halves in the engine block and connecting rods.
  5. Apply a coat of new engine oil to the main bearings and rod bearings.
  6. Hold the crankshaft so rod journal No. 2 and rod journal No. 3 are straight up, then lower the crankshaft into the engine block.
  7. Apply new engine oil to the thrust washer surface. Install the thrust washers (A) in the No. 4 journal of the engine block.
    Fig 2: Identifying Thrust Washers
    G05490227Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Inspect the connecting rod bolts (see CONNECTING ROD BOLT INSPECTION  ).
  9. Apply new engine oil to the threads of the connecting rod bolts.
  10. Seat the rod journals into connecting rod No. 1 and connecting rod No. 4. Line up the mark (B) on the connecting rod and cap, then install the caps and bolts finger-tight.
  11. Rotate the crankshaft clockwise, and seat the journals into connecting rod No. 2 and connecting rod No. 3. Line up the mark on the connecting rod and cap, then install the caps and bolts finger-tight.
  12. Tighten the connecting rod bolts to 36 N.m (3.7 kgf.m, 27 lbf.ft).
  13. Tighten the connecting rod bolts an additional 120°.
    NOTE: Remove the connecting rod bolt if you tightened it beyond the specified angle, then go back to step  8 of the procedure. Do not loosen it back to the specified angle.
    Fig 3: Identifying Connecting Rod Bolt Tightening Angle
    G05490228Courtesy of AMERICAN HONDA MOTOR CO., INC.
  14. Remove all of the old liquid gasket from the lower block mating surfaces, bolts, and bolt holes.
  15. Clean and dry the lower block mating surfaces.
  16. Apply liquid gasket, P/N 08717-0004, 08718-0001, 08718-0003, or 08718-0009, evenly to the engine block mating surface of the lower block and to the inner threads of the bolt holes.

    Install the component within 5 minutes of applying the liquid gasket.

    NOTE: If too much time has passed after applying the liquid gasket, remove the old liquid gasket and residue, then reapply new liquid gasket.
    Fig 4: Identifying Liquid Gasket Applying Area
    G05490229Courtesy of AMERICAN HONDA MOTOR CO., INC.
  17. Put the lower block on the engine block.
  18. Apply new engine oil to the bearing cap bolts. Tighten the bearing cap bolts in sequence to 30 N.m (3.0 kgf.m, 22 lbf.ft).
    Fig 5: Identifying Tightening Sequence Of Bearing Cap Bolts
    G05490230Courtesy of AMERICAN HONDA MOTOR CO., INC.
  19. Tighten the bearing cap bolts an additional 56°.
    Fig 6: Identifying Bearing Cap Bolts Angle
    G05490231Courtesy of AMERICAN HONDA MOTOR CO., INC.
  20. Tighten the 8 mm bolts in sequence to 22 N.m (2.2 kgf.m, 16 lbf.ft).
    Fig 7: Identifying Tightening Sequence Of Bolts
    G05490232Courtesy of AMERICAN HONDA MOTOR CO., INC.
  21. Use the handle driver and oil seal driver attachment to drive a new oil seal squarely into the engine block to the specified installed height.
    Fig 8: Installing Oil Seal Into Block
    G05490233Courtesy of AMERICAN HONDA MOTOR CO., INC.
  22. Measure the distance between the engine block (A) and crankshaft oil seal (B).

    Crankshaft Oil Seal Installed Height: 0.2-1.2 mm (0.001-0.047 in.) 

    Fig 9: Measuring Distance Between Engine Block
    G05490234Courtesy of AMERICAN HONDA MOTOR CO., INC.
  23. Install the baffle plates.
    Fig 10: Baffle Plates w/Torque Specification
    G05490235Courtesy of AMERICAN HONDA MOTOR CO., INC.
  24. Install the oil pump (see OIL PUMP INSTALLATION ).
  25. Install the oil pan (see OIL PAN INSTALLATION  ).
  26. Install the cylinder head (see CYLINDER HEAD INSTALLATION ).
  27. M/T model: Install the flywheel (see FLYWHEEL REPLACEMENT ), clutch disc, and pressure plate (see CLUTCH DISC AND PRESSURE PLATE INSTALLATION ).
  28. A/T model: Install the drive plate (see DRIVE PLATE REMOVAL AND INSTALLATION ).
  29. Install the transmission:
  30. Install the engine/transmission (see ENGINE INSTALLATION ).
    NOTE: Whenever any crankshaft or connecting rod bearing is replaced, it is necessary after reassembly to run the engine at idling speed until it reaches normal operating temperature, then continue to run it for about 15 minutes,
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