Components |
1. Cylinder head assembly 2. Mechanical lash adjuster (MLA) 3. Retainer lock 4. Retainer 5. Valve stem seal 6. Valve spring |
7. Valve spring seat 8. Oil control valve (OCV) 9. Exhaust valve 10. Intake valve 11. Cylinder head gasket |
Removal |
Engine removal is not required for this procedure.
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1. |
Remove the engine cover. (Refer to Engine and Transmission Assembly - "Engine Cover") |
2. |
Disconnect the battery negative terminal. |
3. |
Remove the air duct and air cleaner assembly. (Refer to Intake and Exhaust System - "Air Cleaner") |
4. |
Remove the engine room under cover. (Refer to Engine and Transmission Assembly - "Engine Room Under Cover") |
5. |
Drain the coolant. (Refer to Cooling System - "Coolant") |
6. |
Remove the intercooler inlet hose & pipe (A).
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7. |
Disconnect the RCV solenoide valve connector (A) and booster pressure sensor (BPS) connector (B).
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8. |
Disconnect the intercooler outlet hose (A).
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9. |
Disconnect the radiator upper hose (A).
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10. |
Disconnect the radiator lower hose (A).
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11. |
Disconnect the brake booster vacuum hose (A).
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12. |
Remove the intake & exhaust CVVT oil control valve. (Refer to Engine Control / Fuel System - "CVVT Oil Control Valve (OCV)") |
13. |
Remove the vacuum pipe assembly (A).
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14. |
Remove the intake manifold. (Refer to Intake and Exhaust System - "Intake Manifold") |
15. |
Remove the exhaust manifold module. (Refer to Intake and Exhaust System - "Exhaust Manifold") |
16. |
Remove the delivery pipe assembly. (Refer to Engine Control / Fuel System - "Delivery Pipe") |
17. |
Disconnect the bypass hose, and then remove the water temperature control assembly. (Refer to Cooling System - "Water Temperature Control Assembly") |
18. |
Remove the water pipe. (Refer to Cooling System - "Water Temperature Control Assembly") |
19. |
Remove the cylinder head cover. (Refer to Cylinder Head Assembly - "Cylinder Head Cover") |
20. |
Remove the exhaust oil control valve (OCV) adapter (A).
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21. |
Remove the timing chain cover. (Refer to Timing System - "Timing Chain Cover") |
22. |
Remove the timing chain. (Refer to Timing System - "Timing Chain") |
23. |
Remove the intake CVVT assembly (A) & exhaust CVVT assembly (B).
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24. |
Remove the camshaft bearing caps (A) in the order of image below.
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25. |
Remove the intake & exhaust camshaft (A).
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26. |
Remove the rear hanger (A).
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27. |
Remove the cylinder head cover heat protector (A).
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28. |
Remove the cylinder head bolts, then remove the cylinder head.
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Disassembly |
Identify MLA (Mechanical lash adjuster), valves, valve springs as they are removed so that each item can be reinstalled in its original position. |
1. |
Remove the MLAs (A).
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2. |
Remove the valves.
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Inspection |
Cylinder Head
1. |
Inspect for flatness. Using a precision straight edge and feeler gauge, measure the surface the contacting the cylinder block and the manifolds for warpage. If the flatness is greater than maximum, replace the cylinder head.
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2. |
Inspect for cracks. Check the combustion chamber, intake ports, exhaust ports and cylinder block surface for cracks. If cracked, replace the cylinder head. |
Valve And Valve Spring
1. |
Inspect the valve stems and valve guides.
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2. |
Inspect the valves.
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3. |
Inspect the valve seats.
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4. |
Inspect the valve springs.
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Reassembly |
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1. |
Install the valves.
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2. |
Using the SST (09222-3K000, 09222-3K100), compress the spring and install the retainer locks. After installing the valves, ensure that the retainer locks are correctly in place before releasing the valve spring compressor.
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3. |
Lightly tap the end of each valve stem two or three times with the wooden handle of a hammer to ensure proper seating of the valve and retainer lock. |
4. |
Install the MLA (Mechanical lash adjuster). Check that the MLA (A) rotates smoothly by hand.
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Installation |
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1. |
Install the cylinder head assembly.
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2. |
Place the cylinder head carefully not to damage the gasket.
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3. |
Install the cylinder head bolts with washers.
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4. |
Apply the engine oil to the journal before installing the cam shaft.
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5. |
Install the intake & exhaust cam shaft (A).
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6. |
Install the cam shaft bearing cap (A) in the order below.
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7. |
Install the intake CVVT assembly (A) and the exhaust CVVT assembly (B).
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8. |
Install the cylinder head cover heat protector (A).
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9. |
Install the rear engine hanger (A).
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10. |
Install the timing chain. (Refer to the Timing System - “Timing Chain”) |
11. |
Install other parts in the reverse order of removal. |