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Spark plugs
-
removing
Pull
offthe spark
plug
caps with universal
pliers,
gripping
them
at
the
tag.
Remove the
spark
plugs
with BMW spark
plug
wrench
123500.
Chain
sprockets
- removing
Hold
the camshaft
hexagon
with an open-ended wrench
to
prevent it from turning
and slacken off the chain
sprocket
retaining bolts
(arrow).
Take
off
the
chain
sprockets.
Chain guide rail- removing
1-"1
Remove the
circlip
and washer (arrows)
for
the chain
guide
rail
and
take
offthe
guide
rail with
the
timing chain.
I-. . el
Remove the
chain guide
rail
first, then the
timing
chain.
Camshaft
-
removing
Rotate the camshaft
app
.
45°
beyond TDC (to prevent the
valves from touch ing the
piston).
Rotate
the camshafts
until there is no play at the
cams/
tappets, e.g.
the highest points
on the cams
face inwards.
Firstslacken
offthe
retaining
screws forthe
front bearing
mounts (arrows)
and take
them off (to prevent tilting).
Slacken
off the remaining screws
securing
the bearing
mounts
and take
them
off.
8.87
11119
11
-
41.0
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