Intake removal BMW 540i 1998 E39 Service Manual

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[Cylinder ~ead Removal and Installation
4 Remove cylinder head cover fasteners (arrows) and remove
covers from left and right cylinder heads.
4 Remove oil distribution tubes from camshaft bearing caps
from left and right cylinder heads.
4 Using crankshaft center bolt, turn crankshaft clockwise until
number one cylinder (passenger side front cylinder) is in
TDC overlap position (arrow).
NO JE -
Number one cylinder is at valve overlap when both the intake
and exhaust valves are starting to open (camshaft lobes fac-
ing down).
4 Working at right cylinder head, loosen three accessible cam-
shaft sprocltet fasteners (arrows) on both intake and exhaust
camshafts approximately
'I2 turn.
To prevent valve to piston contact when loosening camshaft
sprocket fasteners, counterhold camshaft with
27 mm open-
end wrench.
If necessary, grind outerside of wrench jaws to
prevent damaging cylinder head.

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Cylinder Head Removal and Installation I
4 Rotate crankshaft vibration damper to TDC position. Right
head camshaft lobes for number one cylinder should be in
position shown (arrows).
Working at right cylinder head (passengers side) loosen re-
maining
sprocltet fasteners (arrows) on both intake and ex-
haust camshafts approximately
'/? turn.
4 Loosen and remove primary timing chain tensioner (arrow)
from upper timing chain cover on right head.

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1 13-64
Cylinder Head Removal and Installation
< Remove upper timing chain cover fasteners (A) and cover
from left cylinder head.
4 Remove fasteners from intake camshaft sprocket (arrows)
on left 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).

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11 3-69
Cylinder Head Removal and Installation
4 Lock crankshaft in TDC position with BMW special tool 11 3
200 (arrow).
NOTE-
Boss for special tool 11 3 200 located at rear of engine oil
pan.
4 Working at left cylinder head (driver's side) fit primary sprock-
et and chain to camshaft flange, centering threaded bores.
Insert bolts (arrows) and hand tighten.
?-I I 4 Install BMW special tool 11 3 390 into right timing case cover.
NOTE-
BMW special tool 00 9 250 is a flexible shaft torque wrench.
I - Tighten sprocket retaining bolts in the following order:
All bolts on left cylinder head exhaust camshaft
3 accessible bolts on right cylinder head exhaust camshaft
All bolts on left cylinder head
intake camshaft
3 accessible bolts on right cylinder head intake camshaft r"".."..7n
Tightening torques
Sprocltet bolts to camshait 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 right cylinder head cam-
shafts. Tighten remaining bolts.
Tightening torques Sprocket bolts to camshaft flange 15 Nm
(11 ft-lb)

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/Cylinder Head Removal and Installation
- Remainder of installation is reverse of removal, noting the fol-
lowing:
Use new gaskets when mounting intake
manifold. Tighten
nuts finger tight first, then torque to specification in stages
working diagonally from center out.
Be sure to reinstall ignition coil ground straps at cylinders
no.
3 and no. 7. See 120 Ignition System.
Reinstall cooling fan and shroud. See
170 Radiator and
Cooling System.
Refill and bleed cooling system as described in
170 Radi-
ator and Cooling System.
Change engine oil and filter as described in
020 Mainte-
nance.
CA UTIOG
To prevent damaging engine electricalsystems, be sure to in-
stall all ground wires previously removed.
Tightening torques
Camshaft sprocket to camshaft 15
Nm (11 H-lb)
Coolant manifold to cylinder head 10 Nm (7.5 H-lb)
Cylinder head cover nuts 10 Nm (7.5 ft-lb)
Exhaust manifold to head 22 Nm (17 ft-lb)
Engine mounts to subirame 42 Nm (30 ft-lb)
Spark plugs to cylinder head 22 Nm (17 ft-lb)
Right cylinder head, removing, M62 engine
- Remove left side exhaust manifold. See 180 Exhaust Sys-
tem.
- Remove intake manifold. See Intake manifold, removal
and installation,
M62 engine.
- Drain engine coolant. See 170 Radiator and Cooling Sys-
tem.
WARNING-
Use extreme caution when draining and disposing of engine
coolant.
Coolanl is poisonous andlellial lo liumans andpels.
Pets are
altracled to coolant because of 11s sfieet smell and
fasle. Seelc medcal anenfion immed~alely if coolant is ingesl-
. .-
< Remove engine coolant manlold mo~nlng fasreners and
carei~lly remove manifo d.
. I
NOTE
Engine 8s slioivn removed lor clarify

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11 3-74
Cylinder Head Removal and Installation
4 Work at left side cylinder head loosen three accessible cam- shaft sprocket fasteners (arrows) on both intake and exhaust
camshafts approximately
'I2 turn.
Toprevent valve
topiston contact, counterholdcamshaft with
27 mm open-end wrench whenever loosening or tightening
camshaft sprocket fasteners. If
necessarq! grind outer side of
wrench jaws to prevent damaging cylinder head.
4 Rotate crankshaft one complete rotation to TDC overlap.
Right (passenger's side of engine) side camshaft lobes for
number one cylinder should be in overlap position as shown
(arrows).
4 Working at left cylinder head, loosen remaining sprocket fas-
teners (arrows) on both
intake and exhaust camshafts ap-
proximately
'I2 turn.

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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 and Valvetrain
< Remove oil baffle cover from above intake camshaft(s)
- Rotate engine at crankshaft vibration damper center bolt in
normal direction of rotation (clockwise) until camshaft lobe of
lifter to be tested points away from the lifter, allowing valve to
be completely closed.
Use a plastic or wooden stick to press down on top of lifter
with approximately 3.5 Nm
(2.25 ft-ib) of force.
If the lifter collapses slightly as though spring loaded, air
may be trapped in the lifter.
NOTE-
Air trapped in hydraulic lifters may result from oil foaming (air
being drawn
in by the oil pump). This may be caused by a
faulty oil pump control valve O-ring; leaking oil pump pickup
gaslcet; or by oil starvation to pump.
Press down on top of lifter for
10 to 15 seconds uslng approx-
lmately 6 to 9 Nm (4.5 to 6.75 ft-lb) of force.
If anv clearance is created between the lifter and the
cam-
shafi lobe, the check valve in the lifter is not closing. Re-
place lifter.
- To replace a hydraulic lifter, remove appropriate camshaft.
Refer to camshaft removal procedures given in Camshaft
and lifter removal and installation.
Once camshaft is removed, withdraw faulty
lifter(s) and re-
place with new
lifter(s). Inspect lifter bores for wear and scor-
ing at arrows.
- Reinstall camshafts. See Camshaft and lifter removal and
installation.

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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.