Crankshaft and Piston Installation

Special Tools Required 

• Driver Handle, 15 x 135L 07749-0010000
• Oil Seal Driver Attachment, 106 mm 070AD-RCA0200

1. Check the connecting rod bearing clearance with plastigage (see CONNECTING ROD BEARING REPLACEMENT ).
2. Check the main bearing clearance with plastigage (see CRANKSHAFT MAIN BEARING REPLACEMENT ).
3. Install the bearing halves in the engine block and the connecting rods.
4. Apply new engine oil to the inside of the main bearings and the rod bearings.
5. Remove the CKP pulse plate from the crankshaft (see CKP PULSE PLATE REPLACEMENT ).
6. Lower the crankshaft (A) into the engine block, being careful not to damage the journals and the CKP pulse plate.
   Fig 1: Identifying Crankshaft

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
7. Apply new engine oil to the side with the thrust washer groove. Install the thrust washers (A) in the No. 3 journal.
   Fig 2: Identifying Thrust Washers

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
8. Install the bearings (A) and the bearing caps (B) with the arrow (C) facing the timing belt end of the engine block.
   Fig 3: Bearings And Bearing Caps With Torque Specifications

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
9. Apply new engine oil to the bolt threads and flanges, then loosely install the bearing cap bolts (D) and the bearing cap side bolts (E).
10. Set the crankshaft to bottom dead center (BDC) for the cylinder you are installing the piston in.
11. Apply new engine oil to the piston, the inside of the ring compressor, and the cylinder bore.
12. Attach the ring compressor to the piston/connecting rod assembly, and check that the bearing is securely in place.
13. Position the piston/connecting rod assembly with the arrow (A) facing the timing belt side of the engine block.
    Fig 4: Positioning Piston/Connecting Rod Assembly

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
14. 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.
    Fig 5: Positioning Piston/Connecting Rod Assembly In Cylinder

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
15. Stop after the ring compressor pops free, and check the connecting rod-to-crank journal alignment before pushing the piston into place.
16. Measure the diameter of each connecting rod bolt at point A and point B.
    Fig 6: Measuring Diameter Of Connecting Rod Bolt With Torque Specifications

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
17. Calculate the difference in diameter between point A and point B.

    Point A-Point B = Difference in Diameter 

    Difference in Diameter 

    Specification: 0-0.1 mm (0-0.004 in.) 

18. If the difference in diameter is out of tolerance, replace the connecting rod bolt.
19. Install the bearing (A), then line up the mark (B) on the connecting rod (C) and the rod cap (D).
    Fig 7: Identifying Mark On Connecting Rod And Cap

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
20. Apply new engine oil to the bolt threads and flanges, then install the bolts (E).
21. Tighten the connecting rod bolt to 20 N.m (2.0 kgf.m, 15 lbf.ft).
    Fig 8: Identifying Tightening Angle Of Bolts

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
22. Tighten the connecting rod bolt an additional 90 °.
    NOTE: Remove the connecting rod bolt if you tightened it beyond the specified angle, and go back to step 16 of the procedure. Do not loosen it back to the specified angle. Repeat steps  10 to 21 for the remaining cylinders.
23. Tighten the bearing cap bolts, and then the bearing cap side bolts to the specified torque in the sequence as shown. Repeat the torque sequence again to ensure the bolts are properly torqued.
    Fig 9: Bearing Cap Bolts With Torque Specifications

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
24. Remove all of the old liquid gasket from the engine block end cover mating surfaces, bolts, and the bolt holes.
25. Clean and dry the engine block end cover mating surfaces, and the crankshaft oil seal housing.
26. Apply a light coat of multipurpose grease to the crankshaft and to the lip of the seal.
27. Using the driver handle, 15 x 135L and the oil seal driver attachment, 106 mm, drive in the new transmission end crankshaft oil seal (A) until the oil seal driver attachment bottoms on the engine block end cover.
    Fig 10: Installing Crankshaft Oil Seal

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
28. Apply liquid gasket (P/N 08717-0004, 08718-0003, 08718-0004, or 08718-0009) to the engine block mating surface of the engine block end cover and to the inside edge of the threaded bolt holes. Install the component within 5 minutes of applying the liquid gasket.
    NOTE:

    • Apply a 2.5 mm (0.098 in) diameter bead of liquid gasket along the broken line (A).
    • If you apply liquid gasket P/N 08718-0012, the component must be installed 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 11: Identifying Liquid Gasket Application Area

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
29. Install the dowel pins (A), a new O-ring (B), and the engine block end cover (C) on the engine block.
    NOTE:

    • Wait at least 30 minutes before filling the engine with oil.
    • Do not run the engine for at least 3 hours after installing the engine block end cover.
    Fig 12: Engine Block End Cover, Dowel Pin And O-Ring With Torque Specifications

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
30. Clean the excess grease off the crankshaft, and check the seal for distortion.
31. Install a new crankshaft oil seal in the oil pump (see step 3 on INSTALLATION ).
32. Remove all of the old liquid gasket from the oil pump mating surfaces, the bolts, and the bolt holes.
33. Clean and dry the oil pump mating surfaces.
34. Apply liquid gasket (P/N 08717-0004, 08718-0001, 08718-0003, or 08718-0009) to the engine block mating surface of the oil pump and to the inside edge of the threaded bolt holes. Install the component within 5 minutes of applying the liquid gasket.
    NOTE:

    • Apply a 2.5 mm (0.098 in) diameter bead of liquid gasket along the broken line (A).
    • If you apply liquid gasket P/N 08718-0012, the component must be installed 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 13: Identifying Liquid Gasket Application Area

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
35. Apply a light coat of new engine oil to the lip of the crankshaft oil seal, and apply new engine oil to the new O-ring (A).
    Fig 14: Oil Seal And O-Ring With Torque Specifications

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
36. Install the dowel pins (B), then align the inner rotor with the crankshaft, and install the oil pump (C).
37. Clean the excess grease off the crankshaft, and check the seal for distortion.
38. Install the baffle plate (D), then install the oil screen (E) with a new O-ring (F).
39. Install the rocker arm oil control solenoid/oil filter assembly (A), with a new rocker arm oil control solenoid filter (B).
    Fig 15: Rocker Arm Oil Control Solenoid/Oil Filter Assembly With Torque Specifications

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
40. Install the oil pan (see OIL PAN INSTALLATION ).
41. Install the timing belt drive pulley to the crankshaft (see TIMING BELT DRIVE PULLEY REPLACEMENT ).
42. Install the cylinder heads (see CYLINDER HEAD INSTALLATION ).
43. Install drive plate (see DRIVE PLATE REMOVAL AND INSTALLATION ).
44. Install the transmission (see TRANSMISSION INSTALLATION ).
45. Install the engine/transmission (see ENGINE INSTALLATION ).
    NOTE: When any crankshaft or connecting rod bearing is replaced, run the engine at idle until it reaches normal operating temperature, then continue to run it for about 15 minutes.