Cylinder Head Removal

Cylinder Head Removal

NOTE:
^ Use fender covers to avoid damaging painted surfaces.
^ To avoid damaging the wire 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 other wiring or hoses, or interfere with other parts.
^ Keep the cam chain away from magnetic fields.

1. Relieve the fuel pressure.
2. Drain the engine coolant.
3. Remove the air cleaner assembly.
4. Disconnect the evaporative emission (EVAP) canister purge valve connector (A), throttle body connector (B), water bypass hoses (C) and purge hose (D).





5. Disconnect the upper radiator hose (A) and the lower radiator hose (B).





6. Disconnect the heater hoses.





7. Remove the drive belt.
8. Remove the intake manifold.
9. Remove the exhaust manifold.
10. Remove the engine wire harness connectors and wire harness clamps from the cylinder head.

^ Rocker arm oil control solenoid connector
^ Rocker arm oil pressure switch connector
^ Exhaust gas recirculation (EGR) valve/EGR valve position sensor connector
^ Four injector connectors
^ Engine coolant temperature (ECT) sensor 1 connector
^ Camshaft position (CMP) sensor connector

11. Remove the fuel rail.
12. Remove the harness holder (A), ground cable (B), harness clamps (C), water bypass hose (D) and engine junction connector clamp (E).





13. Disconnect the connecting pipe (A) and water bypass hose (B).





14. Remove the cylinder head cover.
15. Remove the alternator bracket mounting bolts and loosen the alternator mounting bolt.
16. With A/C: Remove the idler pulley.
17. Set the No. 1 piston at top dead center (TDC). The "UP" mark (A) on the camshaft sprocket should be at the top, and the TDC grooves (B) on the camshaft sprocket should line up with the top edge of the head.





18. Check that the TDC mark lines up with the pointer.
19. Remove the water pump pulley.
20. Remove the crankshaft pulley.
21. Disconnect the crankshaft position (CKP) sensor connector, then remove the harness clamps.
22. Support the engine with a wood block and jack under the oil pan.

NOTE: Do not place the jack in the center of the oil pan to avoid damaging the oil pan.

23. Remove the ground cable, then remove the side engine mount/bracket assembly.
24. Keep the alternator away from the chain case. Remove the chain case.





25. Make a reference mark (A) across the camshaft sprocket and cam chain.





26. Loosely install the crankshaft pulley.
27. Apply new engine oil to the slider surface of the cam chain tensioner slider through the oil return hole in the cylinder head.





28. Hold the crankshaft pulley and set the socket wrench (A) on the camshaft sprocket bolt.





29. Turn the camshaft clockwise to compress the cam chain tensioner, then install the 6 x 1.0 mm bolt (B) in the bolt hole (C) on the engine block through the cam chain tensioner (D).

NOTE:
^ Turning torque should not exceed 56 Nm (5.7 kgf-m, 41 lbf-ft), when turning the camshaft.
^ Do not turn the camshaft counterclockwise.

30. Hold the camshaft with a 27 mm open-end wrench, then remove the camshaft sprocket.





31. Remove the bolt securing the cam chain guide.





32. 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.





33. Remove the cylinder head.