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3.17.8 CYLINDER HEAD: INSER-
TION OF INNER CUP AND
VALVE STEM SEAL
If the lower cups and valve stem seals were
disassembled*, reassemble them as follows.
First insert the lower cup
1
facing the flat part
downwards. Lubricate the upper part of the
valve guide lightly and insert the valve stem
seal
2
. Pay close attention that while inserting
the valve stem seal, its axis is aligned with that
of the valve guide. The valve stem seal must
be pressed towards the bottom of the cylinder
head until it is flush with the valve guide.
1
2
* Remember the valve stem seals must be replaced once they
have been taken off.
Insertion of lower cup.
Insertion of valve stem seal.