Crankshaft Installation

Special Tools Required 

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

1. M/T model: 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 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, 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: Installing Thrust Washers In Engine Block No. 4 Journal

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
8. Inspect the connecting rod bolts (see IF THE CRANKSHAFT IS NOT INSTALLED  ).
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 20 N.m (2.0 kgf.m, 14 lbf.ft).
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: Connecting Rod Bolts Tightening Directions

    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, 08718-0002, 08718-0003, or 08718-0009, evenly to the engine block mating surface of the lower block.
    NOTE: Do not install components if too much time has passed after applying the liquid gasket (for P/N 08718-0002, no more than 4 minutes, for all others, no more than 5 minutes). Instead, remove the old residue and reapply the liquid gasket.
    Fig 4: Locating Liquid Gasket Applying Point

    Courtesy 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 29 N.m (3.0 kgf.m, 22 lbf.ft).
    Fig 5: Tightening Bearing Cap Bolts In Sequence

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

    Courtesy 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: Tightening Bolts In Sequence

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

    Courtesy 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 And Crankshaft Oil Seal

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

    Courtesy 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 INSPECTION ) clutch disc (see CLUTCH DISC AND PRESSURE PLATE INSTALLATION ), 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:
    • Manual transmission (see TRANSMISSION INSTALLATION )
    • Automatic transmission (see TRANSMISSION INSTALLATION )
30. 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 idling speed until it reaches normal operating temperature, then continue to run it for about 15 minutes.