J35Z2 Engine
Cylinder Head RemovalNOTE:
^ Use fender covers to avoid damaging painted surfaces.
^ To avoid damaging the wiring and terminals, 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 any other wiring or hoses, or interfere with any other parts.
1. Relieve the fuel pressure.
2. Do the battery terminal disconnection procedure.
3. Drain the engine coolant.
4. Remove the drive belt.
5. Remove the power steering (P/S) pump (A) and the bolt (B) securing the P/S hose bracket.
6. Remove the alternator.
7. Remove the intake manifold.
8. Remove the six ignition coils.
9. Remove the timing belt.
10. Remove the cylinder head covers.
11. Remove the following engine wire harness connectors and wire harness clamps from the cylinder head:
^ Six injector connectors
^ Engine coolant temperature (ECT) sensor 1 connector
^ Oil pressure switch connector
^ Camshaft position (CMP) sensor connector
^ Rear air fuel ratio (A/F) sensor connector
^ Rear secondary heated oxygen sensor (secondary HO2S) connector
12. Remove the front warm up three way catalytic converter (front WU-TWC) and the rear warm up three way catalytic converter (rear WU-TWC).
13. Remove the quick-connect fitting cover (A), then disconnect the fuel feed hose (B).
14. Disconnect the heater hose (A).
15. Remove the connector bracket from the front cylinder head.
16. Remove the harness clamp bracket from the rear cylinder head.
17. Remove the injector bases.
18. Remove the water passage.
19. Remove the front and rear camshaft pulleys (A) and front and rear back covers (B).
20. Remove the cylinder head bolts. To prevent warpage, loosen the bolts in sequence 1/3 turn at a time; repeat the sequence until all bolts are loosened.
21. Remove the cylinder heads.