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7511145
11-48.0
Valve
stern seal-
installing
Insertthe
valve belore
driving
in
the
valve stem seal.
Push the plastic
cap
(arrow), BMW No. 11 1
350,
on to the
valve
stem
to avoid damaging
the
valve stem seal (rib on
valve shaft).
Drive
in
the
valve stem seal with
BMW
arbor
11 1 940
until
the
arbor is
in contact
with
the
cylinder
head.
Take
offthe
plastic
cap
again.
Cylinder head
-assembling
Install the cup spring
at
the bottom
and
the
valve spring
and spring
plate at the
top.
Compress the
spring with th spind ie 01
BMW
valve spring
tensioner 11 1 740 until the grooves on the
valve stem are
revealed.
Install the valve
cone
and relieve the spring
tension.
Note:
To
avoid damaging
the tappet
bore
holes,
the spring
tensioner cage must be
centred
in the tappet bore hole in
each
case.
Detach the
valve
spring
tensioner again
.
Lightly oil the tappets
and carelully insert
them
in
the
cylinder
head.
8.87
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