BMW 3 Series Service Manual (E39)
.pdfCylinder Head and valvetrain1
While counter holding camshaft, remove exhaust camshaft sprocket bolts (arrows) from left cylinder head. Remove sprocltets with chain.
<While counter holding camshaft, remove exhaust camshaft sprocket bolts (arrows) from right cylinder head. Remove sprocltets with chain.
4 Use BMW special tool 11 3 430 to rotate camshaft into disassembly position.
4 Loosen camshaft bearing caps nuts in correct sequence (1-10) (left cylinder head shown).
NOTE -
Keep camshaft bearingcaps inorder. Usedcaps must not be interchanged.
-Remove exhaust camshaft by repeating process. 0 Remove camshafts from cylinder head.
-Repeat camshaft removal process for right cylinder head.
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/cylinder Head and Valvetrain
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Camshafts, installing, right cylinder head (M62 engine) |
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Camshafts are marked at rear. Install camshafts into cam- |
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shaft bearing saddles of cylinder heads. |
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Intake camshaft for right cylinder head ( 1 4 ) is labelled |
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E 1-4. |
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Exhaust camshaft for right cylinder head (1-4) is labelled |
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A 1-4. |
4 Rotate camshafts so that recesses in Intake and exhaust camshafts polnt upward 30 to 40' above seal~ngsurface for valve cover (arrows).
4 Bearing caps are marked with a code for location.
NOTE-
The camshaft caps are stamped with a code letter - "E"for the intake side and 'N"for the exhaust side. Number code is forposition on head, with number 7 being the front bearing cap.
CAUTION--
Do not mix up camshafibearingcaps betweencylinder banks.
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Cvlinder Head and valvetrain1 |
Evenly tighten down bearing cap nuts in 'I?turn steps starting at number 1.
Tightening torque
Camshaft bearing cap |
14 Nm (10 ft-lb) |
BMW special tool 11 3 430 on camshaft.
4 Rotate camshafts until marker bores (arrows) point upwards.
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/Cylinder Head and Valvetrain
Cylinders 1-4
11 2 445 |
11 2441 |
4Secure camshafts in TDC position using BMW special tools:
Align camshafts with open-end 27 mm wrench so BMW special tools fit on cylinder heads without gaps. Secure tool using number 4 cylinder spark plug hole.
Do not damage the cylinder head. Ifnecessa& machine open-endwrench to fit.
Left side (cyl. 5-8) camshafts, installing (M62 engine)
4Camshafts are marked for location at rear. Install camshafts into camshaft bearing saddles of cylinder heads, noting the following:
Intake camshaft for left cylinder head (5-8) is labelled
E 518.
Exhaust camshaft for left cylinder head (5-8) is labelled A 518.
4 Rotate camshafts so that recesses in intake and exhaust camshafts point downward 30 to 40" (arrows) from cylinder head cover sealing surface.
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Cylinder Head and valvetrain1
4 Bearing caps are marked with a code for location.
NOTE-
The camshaft caps are stamped with a code letter - " E for the intake side and 'HA"for the exhaust side. Number code is for position on head, with number 1 being the front bearing cap.
CAUTIOI\C
Do not mix up camshaft bearingcaps.
Install and evenly tighten down bearing cap nuts in 'I2turn steps starting at number 1.
Tighteningtorque
Camshaft bearing cap |
14 Nrn (10 ft-lb) |
4 Install BMW special tool 11 3 430 on camshaft.
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/Cylinder Head and Valvetrain
4 Rotate camshafts until marker bores (insets) point upwards,
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4 Secure camshafts in TDC position using BMW special tools: |
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Cylinders 5-8 |
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Align camshafts w~thopen-end 27 mm wrench so BMW |
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special tools fit on cylinder heads without gaps. Secure |
11 2 242 |
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2 446 |
tool using number 8 cylinder spark plug hole. |
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CAUTION-
Do not damage the cylinder head. If necessary, machine open-endwrench to fit.
Timing chains and tensioners, installing (M62engine)
4 Fit secondary sprocltets and chain to camshafts on right cylinder head. Center slots in sprocltets to threaded bores in end of camshafts (arrows).
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Cylinder Head and valvetrain1
Install exhaust camshaft bolts (arrows) finger tight.
Remove secondary timing chain tensioner loclting tool.
<Fit secondary sprockets and chain to camshafts on left cylinder head. Center slots in sprocltets to threaded bores in end of camshafts (arrows).
Insert exhaust camshaft bolts (arrows) finger tight in exhaust camshaft on left cylinder head.
Remove secondary timing chain tensioner locking tools from chain tensioners.
ICylinder Head and Valvetrain
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Rotate engine clockwise (arrow) from 45" before TDC to
TDC position.
Secure crankshaft in TDC position with BMW special tool 11 2 300.
4 Fit sprocket with primary chain to intaite camshaft on right cylinder head:
Press timing chain tensioner rail against timing chain (white arrow) to check that fastener holes are centered in sprocket slots (black arrows) when slack is removed from timing chain.
If necessary, remove sprocket and reposition.
Fit sprocket with chain to intake camshaft |
cylinder head |
5-8 with long bores aligned centrally. |
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Install bolts (arrows) and finger tighten |
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Cylinder Head and valvetrain'
Fit sensor gear with mark (arrow) pointing upwards. Install bolts and finger tighten.
4 Attach BMW special tool 11 7 380 to right cylinder head in place of upper timing case cover.
Install BMW special tool 11 3 390 into 11 7 380.
Using BMW special tool 00 9 250, tighten adjustable tensioner screw on 11 3 390 to 0.7 Nm (6.3 in-lb).
-T~ghtencamshaft sprocket bolts in the following order:
1.Exhaust camshaft, left head.
2.Exhaust camshaft, right head.
3.Intake camshaft, left head.
4.Intake camshaft, right head.
Tighteningtorques
Sprocket to camshaft flange |
15 Nm (I 1 ft-lb) |
-Remove camshaft locking tools from both cylinder heads.
-Remove crankshaft locking tool.
4 lnstall oil lines to left and right cylinder heads.
-Remove adjustable timing chain tensioner tool and setup block from right cylinder head.
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Cylinder Head and Valvetrain
Replace primary timing chain tensioner O-ring (arrow) in right cylinder head.
- lnstall right upper timing cover to engine:
Remove old gasket from right timing cover.
Clean gasket groove and install new gasket.
Apply Three Bond 12098sealant to joint between cylinder head and timing cover. Install remaining timing cover bolts finger tight.
lnstall left upper timing chain cover to engine:
Remove old gasket from right timing chain cover.
Clean gasket groove and install new gasket.
Insert lower cover timing chain cover retaining bolt (arrow) to cover, then fit cover to cylinder head.
Apply Three Bond 12098sealant to joint between cylinder head and timing chain cover. lnstall upper timing cover bolts finger tight.
4Remove cylinder head cover sealing gaskets from right cylinder head cover. lnstall BMW special tool 11 1 411 into gasket groove of cylinder head cover.
lnstall right cylinder head cover with BMW special tool 11 1 411 to right cylinder head. Fit cylinder head cover retaining nuts to cylinder head cover studs at cylinders 1 and 2 (first two cylinders on right cylinder head).
Tighten nuts uniformly in 'I2turn steps.
NOTE-
BMWspecial tool 11 1 411presses upper timing chain cover to level of cylinder head.
Tightening torque |
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Cylinder head cover nuts |
10 Nm (7.5 n-lb) |
- Tighten right upper timing cover retaining bolts in two passes.
Tightening torque |
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Timing chain cover to head |
10 Nm (7.5 ft-lb) |