Crankshaft Installation

Special Tools Required 

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

1. With a manual transmission, install the crankshaft pilot bushing when replacing the crankshaft. Using the special tools, drive in the crankshaft pilot bushing until the special tools bottom against the crankshaft.
   Fig 1: Installing Crankshaft Pilot 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. Inspect the connecting rod bolts (see IF THE CRANKSHAFT IS NOT INSTALLED  ).
5. Install the bearing halves in the engine block and connecting rods.
6. Apply a coat of new engine oil to the main bearings and rod bearings.
7. Hold the crankshaft so rod journal No. 2 and rod journal No. 3 are straight up, then lower the crankshaft into the block.
8. Install the thrust washers (A) in the No. 4 journal of the engine block.
   Fig 2: Installing Thrust Washers In Journal Of Engine Block

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
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.

    Tightening Torque 

    K20A3 Engine: 20 N.m (2.0 kgf.m, 14 lbf.ft) 

    K20A2, K20Z1 Engines: 29 N.m (3.0 kgf.m, 22 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  4. of the procedure. Do not loosen it back to the specified angle.
    Fig 3: Tightening And Connecting Rod Bolts

    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: Identifying Liquid Gasket

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
17. Put the lower block on the engine block.
18. 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.
19. Tighten the bearing cap bolts an additional 56.
    Fig 6: Tightening Bearing Cap Bolts

    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: Identifying 8 mm Bolt Tightening Sequence

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

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
22. Measure the distance between the crankshaft (A) and oil seal (B).
    Fig 9: Measuring Distance Between Crankshaft And Oil Seal

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
23. Install the baffle plate.
    Fig 10: Installing Baffle Plate 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. A/T model: Install the drive plate (see DRIVE PLATE REMOVAL AND INSTALLATION ), then install the transmission (see TRANSMISSION INSTALLATION ).
28. M/T model: Install the flywheel (see FLYWHEEL INSPECTION ), then install the clutch disc and pressure plate (see CLUTCH DISC AND PRESSURE PLATE INSTALLATION ). Install the transmission (see TRANSMISSION INSTALLATION ).
29. 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.