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Home >> BMW >> 2009 >> X5 35d >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine - Repair (N62)) >> 33 Rocker Arm With Bearing >> 11 33 517 Removing And Installing/Replacing Rocker Arms On Right Inlet Side (N62 From 9/03 And N62TU)

11 33 517 Removing And Installing/Replacing Rocker Arms On Right Inlet Side (N62 From 9/03 And N62TU)

WARNING: This page is about a different variant/trim than selected.

Special tools required: 

(cylinder bank 1 to 4) 

Necessary preliminary tasks: 

IMPORTANT: The inlet camshaft must first be rotated so that when the bearing bracket is removed the intermediate levers do not slip out and damage the camshaft.

Rotate inlet camshaft in direction of rotation until cam on 1st cylinder is positioned horizontally as shown in illustration.

Fig 1: Locating Camshaft
G04739844Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Camshaft bearing caps of cylinders 1 to 4 and 5 to 8 must not be mixed up.
NOTE: Bearing caps of inlet camshaft are marked on cylinder bank 1 to 4 with L E1 to L E5 from inlet side.

Release nuts and remove bearing cap L E1.

Fig 2: Locating Bearing Cap L E1 And Nuts
G04739890Courtesy of BMW OF NORTH AMERICA, INC.

Release 8 nuts of bearing bracket (1) from outside to inside.

Fig 3: Locating Camshaft Bearing Bracket And Nuts
G04739846Courtesy of BMW OF NORTH AMERICA, INC.

Clamp special tool 11 9 470  as illustrated in a vice.

Fig 4: Identifying Special Tool (11 9 470)
G04739800Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Do not tilt bearing bracket (1).

Carefully lift out bearing bracket (1).

Fig 5: Identifying Bearing Bracket
G04739849Courtesy of BMW OF NORTH AMERICA, INC.

Place bearing bracket (1) with inlet camshaft and eccentric shaft as illustrated on special tool 11 9 470  .

Secure bearing bracket (1) with a nut (special tool 11 9 473  ).

Fig 6: Identifying Special Tool (11 9 473) And (11 9 470)
G04739850Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: The lower section of the bearing bracket (1) is machined with the cylinder head and must not be mixed up.
NOTE: Lower section of bearing bracket (1) remains on cylinder head.
Fig 7: Identifying Lower Section Of Bearing Bracket
G04739851Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Rocker arms (1) are divided into individual tolerance classes.
The tolerance classes are designated as illustrated with the numbers from 1 to 4.
Used rocker arms (1) may only be reused in the same position.

When replacing rocker arms (1) on inlet side: install rocker arms of the same tolerance class in the same position.

Remove rocker arms (1) on inlet side and set aside in neat order.

Fig 8: Locating Rocker Arms On Inlet Side
G04739799Courtesy of BMW OF NORTH AMERICA, INC.

Replacement only: 

When replacing rocker arms (1) on inlet side:

Rocker arms have new tolerance classes and must be assigned to the old tolerance classes and fitted in the same position.

Old = new 2A

1

Old = new 2A

2

Old = new 2B

3

Old = new 2B

4

Fig 9: Identifying Rocker Arms Number
G04793489Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Installation of rocker arms is described separately from removal.

Clean all bearings and cams of inlet camshaft and lubricate with engine oil.

Ends of compression rings (1) point upwards.

Make sure compression rings (1) are engaged at ends.

Fig 10: Locating Compression Rings
G04739838Courtesy of BMW OF NORTH AMERICA, INC.

Install rocker arms (1) on inlet side.

IMPORTANT: Rocker arms (1) slip slightly when bearing bracket is fitted.
Make sure rocker arms (1) are secured as illustrated on hydraulic valve clearance compensating elements and on valves.

Align rockers (1) straight.

Fig 11: Identifying Rocker Arms
G04739839Courtesy of BMW OF NORTH AMERICA, INC.

Remove special tool 11 9 473  .

Remove bearing bracket (1) from special tool 11 9 470  .

Fig 12: Identifying Special Tool (11 9 473) And (11 9 470)
G04739850Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Do not tilt bearing bracket (1).

Lower bearing bracket (1) from above and carefully bring into contact with cylinder head.

Insert nuts and tighten by hand without play.

IMPORTANT: Make sure none of the intermediate levers or rocker arms have slipped out.

Tighten down nuts from inside to outside.

Tightening torque 11 31 1AZ  . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Fig 13: Locating Camshaft Bearing Bracket And Nuts
G04739846Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Camshaft bearing caps of cylinders 1 to 4 and 5 to 8 must not be mixed up.

Fit bearing cap L E1 in such a way that marking is legible from inlet side.

Install nuts and tighten down.

Tightening torque 11 31 1AZ  . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Fig 14: Locating Bearing Cap L E1 And Nuts
G04739890Courtesy of BMW OF NORTH AMERICA, INC.

Rotate inlet camshaft at hexagon head against direction of rotation until cam on 1st cylinder points downwards at an angle as shown in illustration.

NOTE: The marking (1) on the hexagon drive of the inlet camshaft faces upwards.
Fig 15: Locating Marking On Hexagon Drive Of Inlet Camshaft
G04739891Courtesy of BMW OF NORTH AMERICA, INC.

Install inlet and exhaust adjustment unit on right side  . See 11 36 048 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON RIGHT SIDE (N62/N62TU) .

Install spark plugs on cylinder bank 1 to 4.

Install right cylinder head cover  . See 11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU) .

Install ignition coils on cylinder bank 1 to 4.

Install servomotor for right eccentric shaft.  See 11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU) .

Assemble engine.

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