2000 BMW 540i Timing chain cover removal

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11 3-70
Cylinder Head Removal and Installation
- Remove adjustable timing chain tensioner tool from timing
case cover and install primary timing chain tensioner with
new sealing washer.
Tightening torque Chain tensioner cylinder to timing cover
65 Nm (48 ft-lb)
4 Install oil supply lines and mounting nuts (arrows) to both
heads.
Tightening torque
Oil supply line nuts 10 Nm (7.5 ft-lb)
- Remove old gasket from lefl timing cover, and clean gasket
surface.
4 Apply Three Bond 1209 8 sealant to joint between cylinder
head and timing cover (arrows).
Using a new gasket, install lefl timing cover with lower inner
fastener inserted in cover (arrow). Position cover in place
and tighten cover fasteners finger tight.
NOTE-
It is not possible to install lower inner fastener after cover is
in place.

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. ." . .
I - Cylinder Head Removal - and instard --
4 Remove left cylinder head cover gasket and install spacing
tool (BMW
11 1 412) in place of gasket.
- lnstall lefl cylinder head cover fasteners and tighten uniformly
in
'I2 turn steps.
Tightening torque Cylinder head cover nuts
10 Nrn (7.5 it-lb)
- Tighten left upper timing cover retaining bolts in two passes.
Tightening torque
Timing chain cover to head 10 Nrn (7.5 ft-lb)
- Remove lefl cylinder head cover and BMW special tool 11 4
412.
4 Reinstall cylinder head covers to left and right cylinder heads
using new gaskets.
Check for correct seating of half-moon seals
(A) in back of
cylinder head cover.
Use a small amount of Three Bond 1209
03 or equivalent
sealer at corners
(6) of half-moon cutouts.
- Install left cylinder head cover fasteners and tighten uniformly
in
'I? turn steps.
- Install exhaust manifolds using new gaskets and fasteners.
See
180 Exhaust System.

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1 13-75
Cylinder Head Removal and Installation I
4 Loosen and remove primary timing chain tensioner (arrow)
from right cylinder head.
Remove camshaft position sensor (arrow)
chain cover on right cylinder head.
Remove dip
stick tube support fastener. from
upper
Remove upper timing chain cover fasteners
(A) and
cover from right cylinder head. timing
remove

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1 13-76
Cylinder Head Removal and Installation
Remove fasteners from intake camshaft sprocket (arrows)
on right cylinder head.
- Remove primary timing chain sprocket and suspend timing
chain using mechanics wire to prevent chain from dropping
into lower housing.
Turn crankshaft counterclockwise until
45" mark on crank-
shaft is aligned with boss on front timing chain cover (arrow)
4 Loosen cylinder head bolts in sequence 1-10 as shown (ar-
rows) and discard used head bolts.
- Evaluate cylinder head. See 116 Cylinder head and val-
vetrain.

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11 3-80
Cylinder Head Removal and lnstallation
I I 4 Install BMW special tool 11 7 380
4 Install special tool 11 3 390 into special tool 11 7 380 and
tighten tensioner
(1 1 3 390) to 0.7 Nm (6.3 in-lb) using spe-
cial tool 00
9 250.
NOTE-
BMW special tool 00 9 250 is a flexible shaft torque wrench.
- Tighten sprocket retaining bolts in the following order:
3 accessible bolts on left exhaust camshaft
- All bolts on right exhaust camshaft
3 accessible bolts on left intake camshaft
All bolts on right intake camshaft
Tightening torque
Sprocitet bolts to camshaft flange 15 Nm (11 ft-lb)
- Remove camshaft and crankshaft locking tools from engine.
- Using crankshaft center bolt, turn engine clockwise to access
remaining sprocket retaining bolts of left cylinder head cam-
shafts. Tighten remaining bolts.
Tightening torque
Sprocket bolts
to camshaft flange 15 Nm (11 ft-ib)
- Remove BMW special tool 11 3 390 and 11 7 380 from right
cylinder head.
- Remove used gasket from right timing chain cover, clean
gasket surface.
4 Install new gasket and apply three Bond 1209 @sealant to
joint between cylinder head and timing cover
(arrows).

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Cylinder Head Removal and Installation 1
Replace sealing O-ring (arrow) in right cylinder head before
installing upper timing chain cover.
4 Install oil supply lines and mounting nuts on both heads (ar-
rows).
- Using a new gasket, install upper timing chain cover on right
head and tighten cover fasteners finger tight.
4 Remove right cylinder head cover gasket and install spacing
tool
(BMW 11 1 41 1) in place of gasket.
- Install right cylinder head cover fasteners and tighten uni-
formly in
'1, turn steps.
Tightening torque Cylinder head cover fasteners
10 Nm (7.5 ft-lb)
- Tighten right upper timing cover retaining fasteners in two
passes.
I Tightening torque
Upper timing chain cover
10 Nm (7.5 ft-lb)
- Reinstall primary timing chain tensioner with new sealing
washer.
Tightening torque
Chain tensioner to timing cover
65 Nm (48 ft-lb)
- Remove right cylinder head cover and remove special spac-
ingtooi 11 4411.

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This group covers cylinder head and valvetrain service and
repair. Some of the repair procedures described here require
that the cylinder head first be removed as described in
113
Cylinder Head Removal and Installation.
NOTE- For timing chain and
VANOS repair information, see 117
Camshaft Timing Chain.
If it is
determined that the cylinder head will require signif-
icant reconditioning work, a remanufactured cylinder head
may be a good alternative. Remanufactured cylinder
heads are available from an authorized
BMW dealer.
The information given in this repair group is organized ac-
cording to engine code. For engine application information,
see
I00 Engine-General.
For specific repair procedures, refer to the appropriate repair
group:
* 020 Maintenance
100 Engine-General
113 Cylinder Head Removal and Installation
117 Camshafi Timing Chain
= 170 Radiator and Coo!ing System
Special Tools
Special BMW tools are required for most cylinder head ser-
vice described in this repair group. Many of these tools are ex-
pensive and only available through an authorized
BMW
dealer. If the special tools are not available, have the cylinder
head removed and disassembled by an authorized BMW
dealer. Be sure to read each procedure thoroughly before
starting a job to determine which special tools and equipment
will be necessary.
Most of the repairs to a cylinder head require precision
rna-
chine work to specific tolerances. This type of work should be
performed by an authorized BMW repairfacility or an ASE
certified machinist.
71 Torque wrench with flex shaft

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Cylinder Head and Valvetrain
4 Install intake camshaft oil baffle cover and cylinder head cov-
er:
= Checlc for correct seating of half-moon seals (A) in back of
cylinder head cover.
Use a small amount of Three Bond 1209
@or equivalent
sealant at corners
(B) of half-moon cutouts and corners in
front of cylinder head at joint to timing chain cover.
Align cover at front and rear, then alternatively tighten fas-
teners from inside to outside.
Tightening torque
Sparic plug to cylinder head 25 Nm (18 it-lb)
Ignition coils to cylinder head 10 Nrn (7.5 ft-lb)
Cylinder head cover to cylinder iiead 10 Nrn (89 in-lb)
fM6 screws)
CAMSHAFT AND LIFTER REMOVAL
AND ~NSTALLATION
The camshafts can be removed with the cylinder heads
mounted on the engine (in the car).
On 6-cylinder engines there are two different procedures giv-
en, depending on whether the engine is equipped with single
VANOS (M52 engine) or double VANOS
(M52TU or M54 en-
gine).
For V-8 engines, camshaft removal and installation proce-
dures are
only included for the non-VANOS (M62) engine.
Camshaft removal and installation for the
VANOS eq;ipped
V-8 (M62TU) is not covered in this manual.
Special BMW service tools should always be used to remove
and install the camshafts. Removal of the camshafts without
the special tools can result in cylinder head damage and cam-
shaft breakage.