1997 BMW 325i wheel

Table
b
.
Inspection
I
Service

MAINTENANCE
PROGRAM
020-5

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Maintenance
ítem



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c
d

Engine
compartment
maintenance

Change
oil
and
oil
filter
.

Check
brake/clutch
fluid
leve¡

Check
battery
acid
leve¡
and
correct
asnecessary
.
Repair
Group
121

Check
engine
coolant
level
and
anti-freeze
protection
and
addasnecessary
.
Inspect
for
cooling
system
leaks
.
Repair
Group
170

Lubricate
throttie
linkage

Under
car
maintenance

Check
transmission
for
externa¡
leaks
.

Check
manual
transmission
oil
leve¡
andadd
asnecessary
.
Repair
Group
230

Check
final
drive
lubricant
and
addasnecessary
.

Check
fue¡
tank,
fuel
lines,
and
all
connections
for
leaks
.

Inspect
exhaust
system
.
Repair
Group
180

Check
steeringrack
and
steeringlinkages
.
Check
power
steering
system
for
leaks
.
Check
(luid
leve¡
.
Repair
Group
320

Inspect
brake
system
for
damaged
hoses
and
fines,
leaks
or
damage
.
Remove
calipers
and
check
brake
pad
wear
.
Check
brake
rotors
for
scoring
damage
.
Repair
Group
340

Check
parking
brake
operation,
adjust
cable
if
necessary
Repair
Group
340

Inspect
front
and
rear
suspension,
including
wheel
bearings,
for
play
.
Repair
Group
320/330

Inspect
wheelsand
tires,
including
spare,
check
tire
pressure
and
condition

Body
and
Interior
Maintenance

Lubricate
door
hinges
and
hood
latch,
hood
hinges

Check
headlight
and
driving
light
aiming
and
adjust
as
necessary
.

Check
operation
of
headlights,
parking
lights,
back-up
fights,
licenseplate
lights,
interior
lights,
glove
box
light,
engine
compartment
light,
trunk
light,
instrument
panel
lights,
turnsignals,
emer-gency
flashers,
stop
fights,
horas,
headlight
flasher
and
dimmer
switch

Replace
ventilation/A/C
micro-filter
.
Check
functionof
air
conditioning
.
Repair
Group
640

Check
function
of
seat
belts
.
Repair
Group
720

Check
tightness
of
mountfng
screws
on
airbag
front
crash
sensors
(Airbag
I)
.
Repair
Group
721

Check
windshield
washer
fluid
leve¡
and
concentration,
add
as
necessary
Check
operation
of
washer
system
.
Check
condition
of
wiperblades
.
Repair
Group
611

Tighten
nuts
and
bolts
for
door
locks
and
striker
plates

Replace
batteries
for
alarm/remote
control
in
masterkey(where
applicable)
.

Road
Test

Check
braking
performance,
steering,
HVAC,
manual
or
automatic
transmission,
and
mirrors

Service
Interval
Reset

Reset
service
indicator
using
specialreset
tool
.

MAINTENANCE
TALES

020-6



MAINTENANCE
PROGRAM

Group
310/330

Table
c
.
Inspection
II
Service

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L



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L
E

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3
E
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Maintenance
ítem



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c

Engine
compartment
maintenance

Inspect
V-belt
/Poly-ribbeddrive
condition
.
Check
V-belt
tension,
if
applicable
.

Lubricate
throttle
linkage
.

Replace
air
filter
.

Change
oil
and
oil
filter
.

Replacespark
plugs
.
Repair
Group
120

Check
brake/clutch
fluid
leve¡
.

Check
battery
acid
leve¡
and
correct
asnecessary
.
Repair
Group
121

Check
engine
coolant
leve¡
and
anti-freeze
protection
and
add
asnecessary
.
Inspect
for
cooling
system
leaks
.
Repair
Group
170

Under
car
maintenance

Change
automatic
transmission
fluid
.
Repair
Group
240

Change
manual
transmission
oil
.
Repair
Group
230

Check
clutch
plate
for
wear
.
Repair
Group
210

Check
drive
axle
boots
for
leaks
.
Repair
Group
330

Change
final
drive
fluid
(1995
and
later
models
:
change
synthetic
oil
every
2nd
Inspection
II)
.

Replace
fuel
filter
.

Check
fuel
tank,
fuel
lines,
and
af
connections
for
leaks
.

Inspect
exhaust
system
.
Repair
Group
180

Check
steering
gear
and
steering
¡inkages
.
Check
power
steering
system
for
leaks
.
Check
fluidleve¡
.
Repair
Group
320

Inspect
brake
system
for
damaged
hoses
and
lines,
leaks
or
damage
.
Remove
calipers
and
check
brake
pad
wear
.
Check
brake
rotors
for
scoring
damage
.
Repair
Group
340

Check
parking
brake
operation,
adjust
cable
if
necessary
.
Check
thickness
of
parking
brake
lin-
ings
.
Repair
Group
340

Inspect
front
and
rear
suspension,
including
front
and
rear
wheel
bearings,
for
play
.
Repair

Inspect
wheels
and
tires,
including
spare,
check
tire
pressure
and
condition
.

Body
and
Interior
Maintenance

Lubricate
door
hinges
and
hood
latch,
hood
hinges
.

Check
headlight
and
driving
light
aiming
and
adjust
asnecessary
.

Check
operation
of
headlights,
parking
lights,
back-up
lights,
licenseplate
lights,
interior
lights,
glove
box
light,
engine
compartment
light,
trunk
light,
instrument
panel
lights,
turn
signals,
emer-gency
flashers,
stop
lights,
horns,
headlight
flasher
anddimmer
switch
.

Check
active
check
control
panel
forfauits
(where
applicable)
.
6
Electrical
System

MAINTENANCE
TABLES

Continued
on
next
page

Tires,
checking
inflation
pressure



Brake
pad/rotor
wear,
checking

Correct
tire
pressuresare
important
to
handling
and
stability,



Al¡
E36
cars
are
fitted
withdisc
brakes
at
al¡
four
wheels
.
See
fuel
economy,
and
tire
wear
.
Tire
pressures
change
with
temper-



Fig
.
24
.
Although
thebrakesare
equipped
with
a
brake
pad
ature
.
Pressures
should
be
checked
often
during
seasonal
tem-



warning
system,
the
system
only
monitors
one
wheel
per
axle
.
perature
changes
.
Correct
inflation
pressures
canbe
found
on



It
is
recommended
that
pad
thickness
should
be
checked
the
driver's
door
pillar
and
in
the
owner's
manual
.
Note
that
tire



whenever
the
wheels
are
off
or
brakework
is
beggg
done
.
pressuresshould
be
higher
when
thecar
is
more
heavily
loaded
.

WARNING
-

Do
not
inflate
any
tire
to
a
higher
pressure
than
the
tiress
maximum
ínflation
pressure
listed
on
the
side-
wall
.
Use
cara
when
addlng
air
to
warm
tires
.
Warm
tire
pressures
can
increase
as
much
as4
psi
(0.3
bar)
over
their
cold
pressures
.

Tires,
rotating

BMW
does
not
recommend
tire
rotation
.
Due
to
the
cars
sus-
pension
design,
the
fronttires
begin
to
wear
first
at
the
outer

shoulder
and
the
rear
tires
begin
to
wear
first
at
themiddle
of

the
tread
or
inner
shoulder
.
Rotating
the
tires
may
adversely
af-

fect
roadhandling
and
tire
grip
.

NOTE-

The
main
purpose
of
tire
rotation
isto
promote
even
wear
and
maximum
tire
life
.
Tire
life
may
be
decreased
slightly
if
the
tires
are
not
rotated
.

Wheels,
aligning

Routine
maintenance
of
the
brake
system
includes
maintain-

ing
the
brake
fluid
in
the
reservoir,
checking
brakepads
for

wear,
checking
hand
brake
functíon,
and
inspecting
the
system

for
fluid
leaks
or
other
damage
.

Check
that
brake
hoses
are
correctly
routed
to
avoidchafing

or
kinkíng
.
Inspect
unions
and
brake
calipers
for
signs
of
fluid

leaks
.
Inspect
rigid
fines
for
corrosion,
dents,
or
other
damage
.

Inspect
flexible
hoses
for
cracking
.
Replace
faulty
hoses
or
lines
as
described
in
340Brakes
.

WARNING
-

Incorrect
installation
or
overtightening
hoses,
fines,

and
unions
may
cause
chafing
or
leakage
.
This
can
lead
to
partíal
or
completebrake
system
failure
.

MAINTENANCE
PROGRAM



020-
1
7

B323

Fig
.
24
.
Disc
brake
pad
wear
can
checked
through
opening
in
caliper
.

The
brake
caliper
should
be
unbolted
from
the
suspension

strut
to
properly
inspect
the
brake
pads
and
the
rotors
.
See
Fig
.

25
.
Brake
caliper
removal
and
installation
procedures
are
given
in
340
Brakes
.
BMW
recommends
checking
the
front
and
rear
alignment

once
a
year
and
whenever
new
tires
are
installed
.
See320

Steering
and
Wheel
Alignment
for
a
more
detailed
discus-

sion
of
alignment
requirements
and
specifications
.

Brake
Pad
Lining
Minimum
Thickness

(Dimension
A)

Brake
system,
inspecting



"
Front
and
reardisc
brake
pads
....
3
.0
mm
(0
.12
in)

Brake
fluid,
replacing

BMW
strictly
recommends
replacing
the
brake
fluid
every
two
years
.
This
will
help
protect
against
corrosion
and
the
ef-

fects
of
moisture
in
the
(luid
.
See340
Brakes
for
brake
fluid

flushing
procedures
.

Parking
brake,
checking

The
parking
brakesystem
is
independent
of
the
main
braking

system
and
may
requireperiodic
adjustment
dependingon
use
.
Adjust
the
parking
brake
if
the
brake
lever
can
be
pulled
up

more
than
8
clicks
.
Check
that
the
cable
moves
freely
.
A
de-

scription
of
the
parking
brake
and
parking
brake
adjustment

can
be
found
in
340Brakes
.

UNDER-CARMAINTENANCE

113-4



CYLINDER
HEAD
REMOVAL
AND
INSTALLATION

20
.
Disconnect
main
engine
wiring
harness
connector
.
La-

bel
and
disconnect
harness
connectors
for
crankshaft

and
camshaft
sensors
.
See
Fig
.
8
.

0012504

Fig
..
Crankcase
vent
valve
(A),
camshaft
and
crankshaft
sensor
harness
connectors
(B),
locating
bushings
(C),
main
engine
wiring
harnessconnector
(D)
.
M44
engine
shown
.

NOTE-

Early
engines
do
not
havea
maín
disconnect
at
the
lower
intake
manifold
harness
.
lf
necessary,
remove
the
cable
ducting
bolts
and
set
harness
ducting
aside
.

21
.
Remové
lower
section
of
intake
manifold
.

"
Remove
Y
shaped
supportbracket
from
underside
of
manifold
.
(See
Fig
.
6
.)
"
Unbolt
support
brackets
from
alternator
and
starter
.
"
Remove
nuts
holding
manifold
to
cylinder
head
and
pull
manifold
back
until
harness
connectors
for
oil

pressure
switch
and
coolant
temperature
sensorare

accessible
.
Label
and
disconnect
connectors,
then
re-

move
manifold
and
set
aside
.

Timing
chains,
uncoupling



26
.
Lock
crankshaft
in
TDC
position
by
insertíng
BMW
spe-

22
.
On
M42
engines,
remove
thermostat
housing
from
up-



cial
tool
no
.
11
2
300
through
bore
and
into
hole
infly-

per
timing
chaincover
.



wheel
or
driveplate
.
See
Fig
.
11
.

23
.
On
late
M44
engines
(January
1997
and
later),
remove



NOTE-
secondary
air
injection
check-valve
from
front
of
engine



"
If
necessary,
remove
plug
from
locating
bore
in
lower
and
lay
aside
.



edge
of
bell
housing
to
insert
locking
tool
.

24
.
Remove
cylinder
identification
sensor
from
upper
tim-
ing
chaincover
.
Remove
upper
timing
chaincover
.
See
Fig
.
9
.

25
.
Set
engine
to
approximate
TDC
by
rotating
in
normal
operating
direction
until
camshaft
lobes
at
cylinder
no
.
1
are
facing
each
other
.
See
Fig
.
10
.

CYLINDER
HEAD,
4-CYLINDER

Fig
.
9
.



Upper
timing
chain
cover
bolts
(arrows)
.
Remove
secondary
air
injection
check
valve
fromhose
(A)
on
M44
engine
.
Re-
move
cylinder
identification
sensor
from
chaincover
(B)
.

0011998

Fig
.
10
.
Engine
set
to
approximate
TDC
.
Cylinder
no
.
1
camshaft
lobes
face
in
and
arrows
on
sprockets
poínt
up
(arrows)
.

"
Confirm
that
the
locking
tool
has
been
correctly
in-
stalled
by
trying
to
rotate
the
crankshaft
.

27
.
Lock
camshafts
at
TDC
by
mounting
BMW
specíal
tool
no
.
113
240
over
square
ends
of
camshafts
.
See
Fig
.
12
.

NOTE-

Check
that
tool
is
squarely
seated
on
cylinder
head
gasket
surface
.
If
necessary,
rotate
camshafts
slightly
using
an
open-end
wrench
at
hex
oncamshafts
.

Fig
.
11
.
BMW
special
tool
no
.
11
2300
installed
through
bellhousin
and
finto
flywheel
(arrow)
tolockcrankshaft
at
TDC
.

Fig
.
12
.
BMW
special
tool
no
.
11
3
240
installed
on
rear
of
camshafts
tohold
them
at
TDC
.
(M44
engine
shown
.
Other
engínes
are

similar
.)

CAUTION-

The
camshafts
must
be
locked
in
the
TDC
position

using
the
special
service
tool,
or
equivalent,
be-

fore
removing
the
timing
chaín
.
The
tool
holds
the
camshafts
parallel
to
each
other
and
perpendicu-
larto
the
valve
covergasket
surface
.

CYLINDER
HEAD
REMOVAL
AND
INSTALLATION



113-5

6011966

28
.
Remove
hydraulic
chain
tensiones
from
right
side
ofcyl-

inder
head
.
See
Fig
.
13
.

Fig
.
13
.
Hydraulic
chain
tensioner
(arrow)
.

NOTE-

It
is
not
necessary
to
remove
the
cam
sprockets
from

the
chainuntessthese
parts
are
being
reptaced
.
tire
tie
each
sprocket
to
the
chain
to
keep
the
sprockets
timed
to
each
other
.
Keeping
the
sprockets
timed
will
símplífy
instaftation
.

uu
11999

Fig
.
14
.
Chainguide
and
guide
adjusting
sleeve
(arrow)
.
Allen-head
retaining
screwhasbeen
removed
.
Use
slotted
screwdriver
to
loosen
adjusting
sleeve
.

29
.
Remove
mounting
bolts
from
left
and
right
camshaft

sprockets
.
Then
remove
camshaft
sprockets
from
cam-



_



Cylinder
head
assembly,
removing

shafts
.
On
M44
engines,
note
orientation
of
sensor



31
.
Remove
crankshaft
locking
tool
(BMW
special
tool
no
.
wheel
.



11
2
300)
.
Usingthe
crankshaft
vibration
damper
bolt,

30
.
Remove
upper
bolt
from
left
chainguide
.
Loosen
chain



turn
engine
opposite
its
normal
direction
of
rotation

guide
adjusting
sleeve
approximately
two
turns
.
See



(counterclockwise
asviewed
from
the
front)
approxi

Fig
.
14
.



mately
45°
.
This
prevents
accidental
contact
between

valves
and
pistons
during
installation
.

CYLINDER
HEAD,
4-CYLINDER

7
.
Lightly
lubricate
new
cylinder
head
bolts
.
Loosely
instan
bolts
and
their
washers,
then
thread
them
in
until
they
are
finger
tight
.

NOTE-

Check
that
all
washers
for
the
cylinder
head
bolts
are
in
place
before
installing
the
bolts
.

8
.
Tighten
cylinder
head
bolts
in
correct
sequence
.
See
Fig
.
17
.

UU125U2

Fig
.
17
.
Cylinder
head
bolt
tightening
sequence
for
4-cylinder
en-
gines
.
Note
oil
supply
tube
seal
(arrow)
on
M44
engine
.

WARNING
-

The
bolts
should
be
tightennd
in
three
stages
as
líst-
ed
below
.
The
final
stages
require
the
use
of
a
spe-

cial
tool
(BMW
tool
No
.
11
2
110)
ora
suitable

protractor
to
tighten
the
bolts
to
a
specified
torqueangle
.
See
Fig
.
18
.

Tightening
Torques

"
Cylinder
head
to
engine
block
(Torx
El2
M10
bolts)

Stage
1



.
.
.....
.
.
.............
30
Nm
(22
ft-Ib)

Stage
2



.
...
...
.
.
...................
..
.
+90°

Stage
3
.....
...
.
..
...................
..
+90°

9
.
Carefully
rotate
crankshaft
in
direction
of
engine
rota-
tion
and
lock
it
at
TDC
by
inserting
BMW
special
tool

no
.
11
2
300
through
transmission
bellhousing
.
See

Fig
.
19
.

CYLINDER
HEAD
REMOVAL
AND
INSTALLATION



113-
7

Fig
.
18
.
Protractor
and
pointer
being
used
to
tighten
bolts
to
specified
torqueangle
(6-cylinder
engine
shown)
.

Fig
.
19
.
BMW
special
tool
11
2
300
inserted
through
bellhousing
hole
and
finto
flywheel
(arrow)
to
lockcrankshaft
at
TDC
.

10
.
Turn
left
chainguide
adjusting
sleeve
in
until
it
just
con-

tacts
the
cylinder
head
(See
Fig
.
14
.)
.
Insert
chain
guide
retaining
screw
and
tighten
.

CAUTION-



11
.
Placechain
sprockets
with
chains
oncamshaftsso
that
Be
sure
timing
chain
does
not
bind
oncrank
gear

when
turning
crankshaft
.



arrowson
sprockets
point
up
and
elongated
holes
in

sprocketsare
centered
to
tapped
holes
in
camshafts
.

See
Fig
.
20
.

CYLINDER
HEAD,
4-CYLINDER

113-8



CYLINDER
HEAD
REMOVAL
AND
INSTALLATION

IW?
-
L
'/~f
W



~
4r

"

-
"



;,s
1

12
.
On
M44
engine
:
Place
sensor
wheel
on
intake
cam-
shaft
sprocket
so
that
arrowon
sensor
wheel
points
up
.

13
.
Instan
and
hand-tighten
sprocket
mounting
bolts
.

CAUTION-

Different
hydraulic
chaintensioners
were
used
during
manufacture,
depending
onengine
type
.
See
Fig
.
21
.
Note
that
the
late
style
tensioner
can
be
retrofitted
to
the
earlier
engine,
so
be
sure
to
identify
the
version
of
tensioner
installed
as
insta-lation
instructions
vary
between
the
two
.

14
.
On
M42
engine
:
Disassemble
chain
tensioner
by
strik-
ing
outer
sleeve
against
a
solid
object
.
This
will
release
snap
ring
and
tensioner
will
separate
.
See
Fig
.
22
.

M42
Engine

up
and
camshaft
threaded
holes
centered
in
siotted
holes
.

CYLINDER
HEAD,
4-CYLINDER

0013024a

Outer
sl
eve



Detent

ring

Spri
g

Fig
.
22
.
Disassembled
chain
tensioner
for
M42
engine
.

15
.
On
M42
engine
:
Clamp
tensioner
piston
in
vice
(soft

jaws)
.
Slowly
compress
piston,
making
sure
detent
ring

fits
into
taper
of
outer
sleeve
.
If
necessary,
press
ends

of
detent
ring
together
.
Slowly
continuepressing
ten-

sioner
together
until
snap
ring
audibly
clicksinto
outer

sleeve
.
Measure
overall
lengthof
tensioner
to
confirm

correct
assembly
:
68
.5
mm
(2.7
in
.)
.

NOTE-

i

Snap

ring

/0
.13024

The
late-style
tensioner
on
the
M44
engíne
canbe
ret-
rofitted
to
the
M42
engine
.

Tightening
Torque

"Chain
tensioner
plug
to
cylinder
head
.....
.-~
..........
40
Nm
(30
ft-Ib)

16
.
On
M44
engíne
:
Clamp
tensioner
píston
in
vice
(soft

jaws)
and
squeeze
oil
from
it
.
Slowly
compress
piston
only
up
to
end
circlip
.
Repeat
procedure
twice
to
ensure

all
oil
is
expelled
.
See
Fig
.
23
.

17
.
Instan
hydraulic
chain
tensioner
to
cylinder
head
.
Use
a
new
sealing
washer
on
tensioner
when
installing
.

18
.
On
M42
engine
:
Unlock
chain
tensioner
by
pressing
chain
rail
against
tensioner
until
it
expands
out
.

19
.
Check
that
chain
is
free
of
slack
.
Tighten
sprocket
mounting
bolts
.
Fig
.
21
.
Two
versions
of
hydraulic
chain
tensioners
.
Original
chainten-
sioner
on
M42
engine
(top)
can
be
disassembled
.
Chain
ten
sioner
on
M44
engine
(bottom)
cannotbe
disassembled
.



Tightening
Torque
Note
differences
in
outer
sleeve
.
Also,
the
M42
tensioner
de-



"
Chain
sprocket
to
camshaft
flange
.
..
10
Nm
(89
in-lb)
tent
ring
groove
(arrow)
is
visible
when
tensioner
is
extended
.

20
.
Remove
crankshaft
locking
tool
from
bellhousing
and
camshaft
locking
tool
from
rear
of
cylinder
head
.

113-12



CYLINDER
HEAD
REMOVAL
AND
INSTALLATION

18
.
Working
from
underside
of
intake
manifold,
disconnect



21
.
Detach
oil
dipstick
guide
tube
from
manifold
.
Disconharness
connectors,
vent
hoses,
and
air
bypass



nectvent
hose
at
base
of
dipstick
.
hoses)
.

22
.
Remove
intake
manifold
from
engine
byremoving
sev-19
.
Working
at
rear
of
intake
manifold,
label
and
disconnect



en
mounting
nuts
from
above
andtwo
support
bracket
fuel
supply
and
fuel
return
lines
.
Remove
fuelline
hold



bolts
from
below
.
See
Fig
.
32
.
down
bracket
to
free
lines
.
See
Fig
.
31
.

NOTE-

On
M52IS52US
engines,
a
special
fitting
is
used
to
re-tain
the
fuel
fines
to
the
fuel
rail
.
Use
BMW
special
tool
no
.
16
1
050
to
expand
the
locking
clip
inside
the
end
of
the
fuellíne
fittings
.

WARNING
-

"
The
fuel
system
is
desígned
to
retan
pressure
even
wheh
the
ignition
is
off
.
When
working
with
the
fuel
system,
loosen
the
fuel
lines
slowly
toal-
low
residual
fuel
pressure
to
dissipate
gradually
.
Avoid
spraying
fuel
.

"
Fuel
is
highly
flammable
.
When
working
around
fuel,
do
not
disconnect
any
wires
that
could
cause
electrfcal
sparks
.
Do
not
smoke
orwork
near
heaters
or
other
fire
hazards
.

"
Always
unscrew
the
fuel
tank
cap
to
release
pres-
sure
in
the
tank
before
working
on
the
tank
or
lines
.

20
.
Remove
mountingscrews
and
release
wiring
harness
duct
at
rear
bulkhead
and
move
aside
.
Remove
wiring
harness
brackets
frombulkhead
.

CYLINDER
HEAD,
6-CYLINDER

Fig
.
32
.
Intake
manifoldnuts
and
support
bracket
bolts
(arrows)
.

CAUTION-

Stuff
clean
rags
into
the
open
intake
ports
topre-
001269s



vent
any
ports
from
falfing
into
the
engine
.
Fig
.
31
.
Fuel
lines
at
intake
manifold
on
M52/S52
engine
.
Use
BMW
special
tool
16
1
050
to
release
locking
fittings
at
ends
of
fuel
enes
.



1



Timing
chains,
uncoupling

23
.
Remove
VANOS
unit
from
frontof
cylinder
head
.
See
VANOS
section
in
117
Camshaft
Timing
Chain
.

24
.
Setengine
to
approximate
TDC
by
rotating
in
normal
operating
direction
until
camshaft
lobes
at
cylinder
no
.
1
are
facing
each
other
.
Arrows
on
camshaft
sprockets
should
be
pointing
up
.

NOTE-

To
confirm
that
the
crankshaft
is
set
to
the
TDC
posi-
tion,
check
that
the
OIT
mark
(0°
TDC)on
the
front
low-
er
timing
chain
cover
ís
aligned
with
the
víbration
damperSee
Fig
.
33
.

25
.
Lock
crankshaft
at
TDC
.

"
Insert
BMW
special
tool
no
.
11
2
300
through
transmis-
sion
bellhousing
and
finto
hole
in
flywheelor
drive
plate
.
See
Fig
.
34
.