Cylinder Head Removal

Engine removal is not required or this procedure.

CAUTION: To avoid damaging the cylinder head, wait until the engine coolant temperature drops below 100°F (38°C) before loosening the retaining bolts.

NOTE:
- Inspect the timing belt before removing the cylinder head.
- Turn the crankshaft pulley so that the No. 1 piston is at Top Dead Center (TDC).
- Mark all emissions hoses before disconnecting them.
- Anti-theft radios have a coded theft protection circuit. Be sure to get the customer's code number before
- Disconnecting the battery.
- Removing the No. 32 (7.5 A) fuse from the under hood fuse/relay box.
- Removing the radio.
After service, reconnect power to the radio and turn it on.
When the word "CODE" is displayed, enter the customer's 5-digit code to restore radio operation.

1. Disconnect the negative terminal from the battery.
2. Drain the engine coolant.
- Remove the radiator cap to speed draining.
3. Relieve fuel pressure .

WARNING: Do not smoke while working on fuel system, keep open flame or spark away from work area. Drain fuel only into an approved container.





4. Disconnect the fuel feed hose.





5. Remove the strut brace.





6. Remove the intake air duct.





7. Remove the Evaporative Emission (EVAP) control canister hose (B18C1 engine).





8. Remove the brake booster vacuum hose, Evaporative Emission (EVAP) control canister hose, fuel return hose and harness clamp (B18C5 engine).

B18C1 Engine:

B18C5 Engine:

9. Remove the water bypass hose and Positive Crankcase Ventilation (PCV) hose.





10. Remove the brake booster vacuum hose and fuel return hose (B18C1 engine).

B18C1 Engine:

B18C5 Engine:

11. Remove the throttle cable.

NOTE:
- Take care not to bend the cable when removing it. Always replace any kinked cable with a new one.
- Adjust the throttle cable when installing.

12. Remove the 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
- Engine Coolant Temperature (ECT) sensor connector
- TDC/CKP/CYP sensor connector
- Ignition coil connector
- ECT gauge sending unit connector
- Throttle Position (TP) sensor connector
- VTEC solenoid valve connector
- VTEC pressure switch connector
- Manifold Absolute Pressure (MAP) sensor connector
- Idle Air Control (IAC) sensor connector
- EVAP purge control solenoid valve connector
- Intake Air Bypass (IAB) control solenoid valve connector
- Crankshaft speed fluctuation (CKF) sensor connector
13. Remove the spark plug caps and distributor from the cylinder head.

B18C1 Engine:

B18C5 Engine:

14. Remove the upper radiator hose, heater hose and water bypass hose.





15. Remove the splash shield.





16. Remove the engine ground cable.
Remove the adjusting bolt and mounting bolts, then remove the Power Steering (P/S) pump belt and P/S pump.
- Do not disconnect the P/S hoses.
17. Remove the heat shield from the P/S pump bracket.
18. Remove the Air Conditioning (A/C) compressor belt.
19. Remove the alternator belt.





20. Remove the cruise control actuator.





21. Remove the side engine mount.
22. Remove the cylinder head cover.
23. Remove the timing belt.





24. Remove the camshaft pulleys and back cover.





25. Remove the exhaust manifold.

B18C1 Engine:

B18C5 Engine:

26. Remove the intake manifold.





27. Loosen the adjusting screws.





28. Remove the camshaft holder plates, camshaft holders, and camshafts.

Cylinder Head Bolt Loosening Sequence:

29. Remove the cylinder head bolts, then remove the cylinder head.

CAUTION: To prevent warpage, unscrew the bolts in sequence 113 turn at a time; repeat until all bolts are loosened.