Timing Chain Removal

Timing Chain Removal

Special Tools Required
- Holder handle 07JAB-001020A
- Holder attachment, 50 mm 07JAB-001040A
- Socket, 19 mm 07JAA-001020A or a commercially available 19 mm socket

NOTE:
- Use fender covers to avoid damaging painted surfaces.
- To avoid damage, unplug the wiring connectors carefully while holding the connector portion. To avoid damaging the cylinder head, wait until the engine coolant 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 part.
- Keep the timing chain away form magnets. A magnetized timing chain may cause false misfire DTCs.

1. Make sure you have the anti-theft code for the radio, then write down the frequencies for the radio's preset buttons.
2. Disconnect the battery negative terminal first, then the positive terminal.
3. Drain the engine coolant.
4. Drain the engine oil.
5. Disconnect the air control solenoid valve connector, then remove the vacuum hoses and the air cleaner housing/intake air duct assembly.





6. Remove the vacuum tank.
7. Loosen the water pump pulley bolts.





8. Move the auto-tensioner (A) to remove tension from the alternator-compressor belt (B), then remove the alternator-compressor belt.





9. Remove the water bypass hose (A), then remove the three bolts (B) securing the water bypass tube (C).





10. Remove the water pump pulley.
11. Remove the auto-tensioner.
12. Remove the alternator.





13. Remove the idler pulley (A), then remove the idler pulley base (B).
14. Remove the throttle cable.
15. Relieve fuel pressure.
16. Remove the fuel feed hose, fuel return hose and brake booster vacuum hose.
17. Remove the evaporative emission (EVAP) canister hose.
18. Remove the bolt securing the intake manifold bracket, and remove the air hose.
19. Remove the water outlet cover.
20. Remove the two bolts securing the intake manifold bracket, and remove the water bypass hose.
21. Remove the engine wire harness connectors and wire harness clamps from the cylinder head and intake manifold.
- Four fuel injector connectors
- Intake Air Temperature (IAT) sensor connector
- Idle Air Control (IAC) valve connector
- Throttle Position (TP) sensor connector
- Manifold Absolute Pressure (MAP) sensor connector
- Engine Coolant Temperature (ECT) sensor connector
- Primary Heated Oxygen Sensor (primary HO2S) connector
- VTEC solenoid valve connector
- VTEC pressure switch connector
- Crankshaft Position (CKP) sensor connector
22. Remove the four bolts securing the exhaust manifold cover.
23. Remove the heat shield.
24. Remove the exhaust manifold cover, then remove the exhaust manifold bracket and exhaust manifold.
25. Remove the dipstick, Positive Crankcase Ventilation (PCV) hose and breather hose.
26. Remove the ignition coil cover, then remove the ignition coils.
27. Remove the cylinder head cover.
28. Set the No.1 piston at TDC.
29. Remove the end cover and nozzle from the timing chain auto-tensioner.
30. Thread a nut onto the 5 x 0.8 mm bolt, then thread the bolt into the maintenance hole in the timing chain auto-tensioner.
31. Turn the bolt clockwise to compress the timing chain auto-tensioner, and lock the bolt with the nut.
32. Remove the timing chain auto-tensioner.
33. Loosen the rocker arm adjusting screws.
34. Remove the camshaft holders and camshafts.
35. Remove the rocker arm assembly.
36. Remove the idler gear/idler gear collar/washer assembly. Do not drop the washer into the chain case.
37. Remove the cylinder head bolts. To prevent warpage, unscrew the bolts in sequence 1/3 turn at a time; repeat the sequence until all bolts are loosened.
38. Remove the cylinder head.





39. Remove the oil pan.





40. Hold the pulley with holder handle (A) and holder attachment (B).
41. Remove the bolt with a heavy duty 19 mm socket (C) and breaker bar.





42. Remove the chain case.





43. Remove the oil pump chain guide.
44. Remove the timing chain.