Crankshaft Installation

Special Tools Required 

• Driver 07749-0010000
• Attachment, 24 x 26 mm 07746-0010700
• Oil seal driver attachment, 96 mm 07ZAD-PNAA100

1. With a manual transmission, install the crankshaft end bushing when replacing the crankshaft. Using the special tools, drive in the crankshaft end bushing until the special tools bottom against the crankshaft.
   Fig 1: Installing Crankshaft End Bushing

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
2. Check the connecting rod bearing clearance with plastigage (see ROD BEARING CLEARANCE INSPECTION  ).
3. Check the main bearing clearance with plastigage (see MAIN BEARING CLEARANCE INSPECTION  ).
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 that rod journal No. 2 and rod journal No. 3 are straight up, and lower the crankshaft into the engine block.
7. Apply new engine oil to the thrust washer surfaces. Install the thrust washers (A) in the No. 4 journal of the engine block.
   Fig 2: Identifying Thrust Washers

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
8. Inspect the connecting rod bolts (see CONNECTING ROD BOLT INSPECTION  ).
9. Apply 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 20 N.m (2.0 kgf.m, 14 lbf.ft) (K20Z2) or 29 N.m (3.0 kgf.m, 22 lbf.ft) (K20Z3).
13. Tighten the connecting rod bolts an additional 90°
    NOTE: Remove the connecting rod bolt if you tightened it beyond the specified angle, and go back to step  8 of the procedure. Do not loosen it back to the specified angle.
    Fig 3: Identifying Connecting Rod Bolts Angle

    Courtesy 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. Install the component within 5 minutes of applying the liquid gasket.
    NOTE:

    • If you apply liquid gasket P/N 08718-0012, the component must be install within 4 minutes.
    • 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: Applying Liquid Gasket To Engine Block Mating Surface Of Lower Block

      Courtesy of AMERICAN HONDA MOTOR CO., INC.
17. Put the lower block on the engine block.
18. Apply new engine oil to the threads of the bearing cap bolts.
19. Tighten the bearing cap bolts, in sequence, to 29 N.m (3.0 kgf.m, 22 lbf.ft).
    Fig 5: Identifying Bearing Cap Bolts Tightening Sequence

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
20. Tighten the bearing cap bolts an additional 56°.
    Fig 6: Identifying Bearing Cap Bolts Angle

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
21. Tighten the 8 mm bolts, in sequence, to 22 N.m (2.2 kgf.m, 16 lbf.ft).
    Fig 7: Identifying Bearing Cap Bolts Tightening Sequence

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
22. Use the special tools to drive a new oil seal squarely into the engine block to the specified installed height.
    Fig 8: Driving Oil Seal Squarely Into Engine Block

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
23. Measure the distance between the engine block (A) and oil seal (B).

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

    Fig 9: Identifying Oil Seal Installed Height

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
24. Install the baffle plates.
    Fig 10: Baffle Plates With Torque Specifications

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
25. Install the oil pump (see OIL PUMP INSTALLATION ).
26. Install the oil pan (see OIL PAN INSTALLATION  ).
27. Install the cylinder head (see CYLINDER HEAD INSTALLATION ).
28. M/T model: Install the flywheel (see FLYWHEEL INSPECTION ), clutch disc (see CLUTCH DISC AND PRESSURE PLATE INSTALLATION ), and pressure plate (see CLUTCH DISC AND PRESSURE PLATE INSTALLATION ).
29. A/T model: Install the drive plate (see DRIVE PLATE REMOVAL AND INSTALLATION ).
30. Install the transmission:
    • Manual transmission (see TRANSMISSION INSTALLATION )
    • Automatic transmission (see TRANSMISSION INSTALLATION )
31. Install the engine assembly (see ENGINE INSTALLATION ).
    NOTE: Whenever any crankshaft or connecting rod bearing is replaced, it is necessary after reassembly to run the engine at idle speed until it reaches normal operating temperature, then continue to running it for about 15 minutes.