Cylinder Head: Disassembly

WARNING: This page is about a different variant/trim than selected.

Remove the chain cover securing bolt from the cylinder head LH.

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Remove the stud bolts from the cylinder head.

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Remove the valve collet, valve, valve spring retainer, valve spring and valve spring seat from the cylinder head RH.

WARNING: Metallic sodium is encapsulated in the exhaust valve. Metallic sodium is a strong alkaline material and thus prone to serious chemical reaction. When handling or disposing of the valve, be sure to confirm "DISPOSAL". Refer to MECHANICAL (EXCEPT FOR STI)>CYLINDER HEAD>DISPOSAL .

CAUTION: During work, place a waste cloth, etc. to avoid scratching the mating surface of the cylinder head RH.

NOTE:

Mark each part to prevent confusion.
Keep all the removed parts in order for re-installing in their original positions.

Compress the valve spring and remove the valve collet using ST.

ST 0920287002000 REMOVER AND REPLACER

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Remove valve, valve spring retainer, valve spring and valve spring seat.

Remove the valve collet, valve, valve spring retainer, valve spring and valve spring seat from the cylinder head LH.
Remove the valve oil seals from valve guides of cylinder head RH.
CAUTION:
- During work, place a waste cloth, etc. to avoid scratching the mating surface of the cylinder head RH.
- Use special care not to damage the cylinder head RH and guide during work.
NOTE: For removal of valve guide, refer to INSPECTION. Refer to MECHANICAL (EXCEPT FOR STI)>CYLINDER HEAD>INSPECTION>VALVE & VALVE GUIDE .

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For cylinder head LH, remove the valve oil seal in the same manner.