Cylinder Head Assembly

Cylinder Head

CYLINDER HEAD AND CAMSHAFT:

CYLINDER HEAD AND CAMSHAFT:

CYLINDER HEAD AND VALVE ASSEMBLY:

Disassembly
1. Place the cylinder head on the ST.
ST 498267800 CYLINDER HEAD TABLE
2. Set the ST on valve spring. Compress the valve spring and remove the valve spring retainer key. Remove each valve and valve spring.

Assembly





ST 499718000 VALVE SPRING REMOVER

NOTE:
^ Keep all the removed parts in order for re-installing in their original positions.
^ Mark each valve to prevent confusion.
^ Use extreme care not to damage the lips of the intake valve oil seals and exhaust valve oil seals.





Installation Of Valve Spring And Valve:
1. Place the cylinder head on the ST.
ST 498267800CYLINDER HEAD TABLE
2. Coat the stem of each valve with engine oil and insert the valve into valve guide.

CAUTION: Use extreme care not to damage the oil lips when inserting the valve into valve guide.

3. Install the valve spring and retainer.

NOTE: Be sure to install the valve springs with their close-coiled end facing the seat on the cylinder head.

4. Set the ST on valve spring.
ST 499718000 VALVE SPRING REMOVER





5. Compress the valve spring, and then fit the valve spring retainer and valve spring retainer key.





6. After installing, tap the valve spring retainers lightly with a plastic hammer for better seating.