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Cylinder Head Removal




Cylinder Head Removal

NOTE:

- Use fender covers to avoid damaging painted surfaces.

- To avoid damaging the wires and terminals, unplug the wiring connectors carefully while holding the connector portion.

- Connect the Honda Diagnostic System (HDS) to the data link connector (DLC), and monitor the engine coolant temperature (ECT). To avoid damaging the cylinder head, wait until the ECT temperature drops below 100 °F (38 °C) before loosening the cylinder head bolts.

- Mark all wiring and hoses to avoid misconnection. Also, be sure that they do not contact other wiring or hoses, or interfere with other parts.

1. Relieve the fuel pressure:
- '00-05 models

- '06-09 models Service and Repair

2. Do the battery terminal disconnection procedure Procedures

3. Drain the engine coolant. Service and Repair

4. Drain the engine oil. Testing and Inspection

5. '00-05 models: Disconnect the air hose (A) and the breather pipe (B), then remove the air cleaner housing cover (C) and the air cleaner assembly (D).






6. '06-09 models: Disconnect the intake air temperature (IAT) sensor connector (A) and the breather pipe (B), remove the manifold absolute pressure (MAP) sensor harness (C) from the holder, then remove the air cleaner housing cover (D) and the air cleaner assembly (E).






7. '00-05 models: Disconnect the air control solenoid valve connector (A) and the vacuum hoses (B), remove the harness clamps (C), then remove the air cleaner housing (D).






8. '06-09 models: Remove the IAT sensor harness clamps (A), the remove the air cleaner housing (B).

9. Remove the drive belt. Testing and Inspection

10. '00-05 models: Remove the throttle cable. Engine Removal






11. '00-05 models: Disconnect the fuel feed hose (A), the fuel return hose (B), and the brake booster vacuum hose (C).

'00-03 models





'04-05 models





12. '06-09 models: Remove the intake manifold cover.






13. '06-09 models: Remove the quick-connect fitting cover (A), then disconnect the fuel feed hose (B) and the brake booster vacuum hose (C).






14. Disconnect the evaporative emission (EVAP) canister hose.

'00-05 models





'06-09 models





15. '00-05 models: Remove the bolt (A) securing the intake manifold bracket, and disconnect the air hose (B).






16. '06-09 models: Remove the bolt (A) securing the intake manifold bracket.






17. Remove the water outlet cover.

18. Disconnect the following engine wire harness connectors and wire harness clamps from the cylinder head and the intake manifold:
- Four fuel injector connectors

- Intake air temperature (IAT) sensor connector ('00-05 models)

- Idle air control (IAC) valve connector ('00-05 models)

- Throttle position (TP) sensor connector ('00-05 models)

- Throttle body connector ('06-09 models)

- Manifold absolute pressure (MAP) sensor connector

- Primary heated oxygen sensor (primary HO2S) connector ('00-05 models)

- A/F sensor connector ('06-09 models)

- Engine coolant temperature (ECT) sensor connector ('00-05 models)

- Engine coolant temperature (ECT) sensor 1 connector ('06-09 models)

- Rocker arm oil control valve (VTEC solenoid valve) connector

- Rocker arm oil pressure switch (VTEC oil pressure switch) connector

- Crankshaft position (CKP) sensor connector





19. '00-05 models: Remove two bolts (A) securing the intake manifold bracket, and disconnect the water bypass hose (B).






20. '06-09 models: Disconnect the water bypass hose (A) and the EVAP hose (B), remove the bracket (C) and the wire harness clamp (D), then remove the intake manifold bracket (E).






21. Remove the four bolts securing the exhaust manifold cover.






22. Remove the three bolts (A), and loosen the bolt (B), then remove the heat shield (C).






23. Remove the exhaust manifold cover, then remove the exhaust manifold bracket (A) and the exhaust manifold (B).

24. '00-05 models: Remove the injectors.






25. Remove the intake manifold bracket (A) and the intake manifold (B).

26. Remove the cylinder head cover. Cylinder Head Cover Removal






27. Set the No. 1 piston at top dead center (TDC). The TDC marks (A) on the cam chain sprocket should align with the cylinder head surface.






28. Remove the end cover (A) and the nozzle (B) from the cam chain auto-tensioner.






29. Thread a nut (A) onto a 5 x 0.8 mm bolt that is at least 40 mm long (B), then thread the bolt into the maintenance hole in the cam chain auto-tensioner.

30. Turn the bolt clockwise to compress the cam chain auto-tensioner, and lock the bolt with the nut.






31. Remove the cam chain auto-tensioner.






32. Loosen the locknuts and the adjusting screws (A).






33. Remove the camshaft holders and the camshafts. To prevent damaging the camshafts, loosen the camshaft holder bolts in sequence two turns at a time, in a crisscross pattern.






34. Insert the bolts (A) into the rocker shaft holder, then remove the rocker arm assembly (B).






35. Remove the idler gear/cam chain sprocket assembly, the idler gear collar, and the washer.






36. Remove the cylinder head bolts. To prevent warpage, loosen the bolts in sequence 1/3 turn at a time; repeat the sequence until all the bolts are loose.

37. Remove the cylinder head.





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