Cylinder Head Installation
Cylinder Head InstallationInstall the cylinder head in the reverse order of removal.
1. Install a new coolant separator in the engine block whenever the engine block is replaced.
2. Clean the cylinder head and engine block surface.
3. Install a new cylinder head gasket (A) and dowel pins (B) on the engine block. Always use a new cylinder head gasket.
4. Set the crankshaft to top dead center (TDC). Align the TDC mark (A) on the crankshaft sprocket with the pointer (B) on the engine block.
5. Install the cylinder head on the engine block.
6. Measure the diameter of each cylinder head bolt at point A and point B.
7. If either diameter is less than 10.6 mm (0.42 in.), replace the cylinder head bolt.
8. Apply new engine oil to the threads and flange of all cylinder head bolts.
9. Tighten the cylinder head bolts in sequence to 39 Nm (4.0 kgf-m, 29 lbf-ft). Use a beam-type torque wrench. When using a preset-type torque wrench, be sure to tighten slowly and do not overtighten. If a bolt makes any noise while you are torquing it, loosen the bolt and retighten it from the first step.
10. After torquing, tighten all cylinder head bolts in two steps (90°per step). If you are using a new cylinder head bolt, tighten the bolt an extra 90°.
NOTE: Remove the cylinder head bolt if you tightened it beyond the specified angle, and go back to step 6 of the procedure. Do not loosen it back to the specified angle.
11. Install the rocker arm assembly.
12. Install the cam chain.
13. Tighten the two bolts (A) securing the evaporative emission (EVAP) canister purge valve bracket and the bolt (B) securing the harness brackets.
14. Install the engine wire harness connectors and wire harness clamps to the cylinder head.
^ Four injector connectors
^ Engine coolant temperature (ECT) sensor connector ('04-05 models)
^ Engine coolant temperature (ECT) sensor 1 connector ('06-08 models)
^ Camshaft position (CMP) sensor A/B connectors
^ Rocker arm oil control solenoid (VTEC solenoid valve) connector
^ Rocker arm oil pressure switch (VTEC oil pressure switch) connector
15. Install the upper radiator hose (A) and heater hoses (B).
16. Install the positive crankcase ventilation (PCV) hose (A) and ground cable (B).
17. Install the water bypass hose (A).
18. Tighten the bolt (B) securing the connecting pipe.
19. Install the exhaust manifold.
20. Install the intake manifold.
21. Install the EVAP canister hose (A) and brake booster vacuum hose (B).
22. Connect the fuel feed hose (A), then install the quick-connect fitting cover (B). Make sure the connector engages fully.
23. Install the air intake duct (A), then connect the intake air temperature (IAT) sensor connector (B), and install the vacuum hose (C) and breather pipe (D).
24. After installation, check that all tubes, hoses, and connectors are installed correctly.
25. Inspect for fuel leaks. Turn the ignition switch ON (II) (do not operate the starter) so that the fuel pump runs for about 2 seconds and pressurizes the fuel line. Repeat this operation three times, then check for fuel leakage at any point in the fuel line.
26. Refill the radiator with engine coolant, and bleed air from the cooling system with the heater valve open.
27. Do the crankshaft position (CKP) pattern clear/CKP pattern learn procedure.
28. Inspect the idle speed.
29. Inspect the ignition timing.
30. Enter the anti-theft codes for the audio system and the navigation system (if equipped), then enter the audio presets.
31. Set the clock (on vehicle without navigation).