chain BMW 530i 2001 E39 Owner's Manual

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. - -- -
Cylinder Head Removal and Installation --
Remove bolts (arrows) holding timing chain cover to cylinder
head. (Photo shows camshafts and camshaft bearing caps in
place).
4 Using BMW special tool 11 2 250 or equivalent, loosen cylin-
der head bolts in several stages, in sequence shown. Discard
head bolts.
NOJE-
BMW special tool 11 2 250 is a thin-walled Torx El2 socket
with an extended reach. The cylinder head bolts are re-
cessed into the head below the
camshaft towers with little
working space.
- Lift off cylinder head. Refer to 116 Cylinder Head and Val-
vetrain for cylinder head reconditioning information.
Cylinder head, installing, M52 TU and M54
engines
Clean cylinder head and gasket surfaces of cylinder bloclc
and all timing chain covers.
CAUTION- Remove foreign matter and liquid from bolt holes. Trapped oil
or coolant in bolt holes can cause damage to
blocl~,
CAUJION-
Do not use a metal scraper or wire brush to clean the alumi-
num cylinder head or pistons. If necessary, use a hard wood-
en orplastic scraper. Also available are abrasive discs to be
used in conjunction with an electric drill. Be sure to use the
correct disc for the type of metal being cleaned.
Evaluate cylinder head as shown in
116 Cylinder Head and
Valvetrain.
NOTE- If the cylinder head has been machined, a special 0.3
mm
(0.01 1 in.) thicker gasket should be installed. The thicker
gasket is available from an authorized
BMW dealer and
should be marked accordingly
Cylinder head and valve specifications are covered in 116
Cylinder Head and Valvetrain.

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11 3-40
I Cylinder Head Removal and Installation
Lubricate camshafts, camshaft carriers, bearing caps, hy-
draulic lifters, friction washers, splined shafts and spline hubs
with assembly lubricant before installation.
4 Check that two cylinder head aligning sleeves (arrows) are
correctly positioned in block and are not damaged.
- Apply elastic sealing compound Three Bond 1209 8 to cor-
ner joints on cylinder block to timing chain cover.
- Place new cylinder head gasket on cylinder block.
NOTE-
The word "OBEN" or "TOP printed on the gasket, should
face up. The cylinder headgaslet will fit correctly in only one
orientation.
- Set cylinder head in position, guiding primary chain through
cylinder head opening.
CAUJION-
Make sure the crankshaft, which had been rotated approxi-
mately 30" opposite the direction of engine rotation from
TDC, is still in thatposition before lowering the cylinder head
into position. All pistons must be out of TDC position to pre-
vent
valve/piston interference when the camshafts are in-
stalled.
- Lightly lubricate new cylinder head bolts and washers with
oil. Install bolts and washers finger tight. Install cylinder head
to lower timing chain cover bolts finger tight.
NOJE-
Cylinder head bolts should not be reused. They are
stretch-type bolts and must be replaced whenever loos-
ened.
* Aluminum cylinder blocls use different length cylinder
head bolts and torque values than cast iron blocks.
Check that all washers for
Nle head bolts are in place be-
fore installing the bolts. Some of the washers may be
staked to the cylinder head.
I 12 10 4 2 6 8 141 Tighten cylinder head bolts in correct sequence (1-14)
CA U TIOW-
The bolts should be tightened in three stages as listed below
The final stages require the use of a BMW special tool
11 2
110 or a suitable protractor to tighten the bolts to a specified
torque angle.

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. - ..
Cylinder Head Removal and installation] --
- Secure cylinder head bolts by torquing an additional 90"
each for Stage 2 and 3.
Tightening torques
Cylinder head to engine block
(aluminum block)
Stage
1 40 Nm (30 it-lb)
Stage 2 +90°
Stage 3 80'
4 lnstall intake camshaft position sensor (arrow).
4 Install lower secondary chain guide. Tighten tom bolts to
specifications. The bolt on the intake camshaft side is long
and extends into the engine block.
4 Install and tighten cylinder head-to-lower timing chain cover
bolts (arrows). (Photo shows camshafts in place).
Tightening torque Secondary chain guide to cylinder head
10 Nm (89 in-lb)
Cylinder head to lower timing chain cover
M6 10 Nm (89 in-lb)
M7 15 Nm (1 1 it-lb)

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1 13-42
I Cylinder Head Removal and Installation
4 Before installing camshaft carriers, examine bearing points
(arrows) on hydraulic lifter bores for signs of wear.
4 Center camshaft carrier with hydraulic lifters on pins (ar-
rows) at bearing positions 2 and 7.
Note marks on carriers: (E) for intake side and (A) for exhaust
side.
Lift timing chain and put exhaust cam onto exhaust camshaft
carrier. Place intake camshaft on camshaft carrier.

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11 3-44
I Cylinder Head Removal and Installation
4 Secure camshafts in TDC position using BMW special tool
set
11 3 240.
4 In necessary, turn camshaft slightly so that special tools are
squarely seated on cylinder head.
4 Lift timing chain and hold under tension.

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Cylinder Head Removal and Installation
4 While maintaining tension on timing chain, rotate crankshaft
at vibration damper from
30" before TDC in direction of rota-
tion (clockwise) until number
1 cylinder is at TDC position
with line between the
OIT (arrow) on front pulley lined up
with boss on lower timing chain cover.

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1 13-46
Cylinder Head Removal and Installation
Double
VANOS Timing
Chain Components
1. Impulse wheel mounting nut
2. Exhaust camshaft impulse
wheel
3. Spring plate, exhaust
4. Thrust spacer (T
= 3.5 mm)
5. Splined shaft
6. Torx screw
7. Exhaust camshaft secondary
sprocket
8. Secondary timing chain
9. Splined sleeve
10. Primary sprocket
11. Threaded locating stud
12. Secondary chain tensioner
13. Secondary chain lower guide
14. Sprocket mounting nut
15. Spring plate, intake
16. Splined shaft
17. lntakecamshaft sprocket
18. Locating stud
19. Thrust spacer
20. Intake camshaft impulse wheel
Double VANOS timing chain components,
installing,
M52 TU and M54 engines -
4 Slide impulse wheel on intake camshaft, aligning boss with
raised portion on camshaft
(arrow).

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Cylinder Head Removal - an-]
Fit thrust spacer (A) to intake camshaft (B) and tighten down
with threaded locating studs. Place longer threaded end of
studs into camshaft
(arrows).
Tightening torque
Impulse
wheel studs to intake camshaft) 20 Nm (15 ft-lb)
Fit primary sprocket to primary timing chain and install on ex-
haust camshaft so that pointer on sprocket
(arrow) lines up
with cylinder head sealing surface.
4 Insert BMW special tool 11 4 220 into timing chain tensioner
bore and bring center spindle into contact with tensioning rail.
Tighten until slack is removed, but do not pretension timing
chain.
NOTE-
BMW special tool 11 4 220 is an adjustable primary chain
tensioner and simulates the function of the tensioner.
- Rechecic arrow on primary sprocket is aligned with upper
edge of cylinder head. Reposition sprocket if necessary.
Insert and tighten down threaded locating studs
(arrows) in
end of exhaust camshaft. Note installed position of studs.
Tightening torques Exhaust camshaft locating stud
20 Nm (15 ft-lb)

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I Cvlinder Head Removal and Installation
4 Install secondary chain tensioner on cylinder head (arrows).
Keep tensioner compressed using BMW special tool 11 3
291 or suitable pin.
< Install exhaust camshaft splined sleeve. Confirm that gap in
sleeve splines aligns with corresponding gap in
camshaft
splines (arrows).
Slide splined shaft onto exhaust camshaft. Be sure that locat-
ing tooth of shaft fits into spline gaps of camshaft and splined
sleeve
(arrows).
- Push splined shaft in further to rotate splined sleeve until the
three threaded holes in primary chain sprocket are centered
in the small slots of the splined sleeve.
4 Place intake and exhaust sprockets in BMW special tool 11 6
180. Position spline gap on intake sprocket (arrow) as shown
and place secondary chain on sprockets.

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-7 Cylinder Head Removal and lnstallat~on -- -- - -
Remove chain and sprockets from tool and slide sprockets
on camshafts. Confirm that gap in intake sprocket splines
lines up with corresponding gap in camshaft splines (arrow).
CAUTIOI\C
Do not alter position of sprockets with respect to chain when
removing
from special tool 11 6 180.
< Align locating tooth of splined shaft with gaps on camshaft
and sprocket. Slide splined shaft onto intake camshaft until
approx.
1 mm (0.04 in) of splines (arrows) are visible.
4 Install intake camshafl spring plate so that FRONT mark is
visible. Install mounting nuts (arrows) finger tight.
Insert sprocket mounting bolts (arrows) on exhaust side
camshaft assembly.
Initially tighten to approx.
5 Nm (44 in-lb) and then back off
by half a turn.