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Home >> BMW >> 2009 >> 650i 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1510 (Engine - Repair Instructions (N62)) >> 33 Rocker Arm With Bearing >> 11 33 517 Removing And Installing/Replacing Rocker Arms On Right Inlet Side (N62 To 9/03) >> Installation

11 33 517 Removing And Installing/Replacing Rocker Arms On Right Inlet Side (N62 To 9/03): Installation

WARNING: This page is about a different car, the 2008 BMW Alpina and 2007 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.

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 1: Identifying Ends Of Compression Rings Point
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 rocker arms (1) straight.

Fig 2: 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 3: Identifying Special Tool (11 9 470)
G04777150Courtesy 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.
Fig 4: Identifying Bearing Bracket Nuts
G04739846Courtesy of BMW OF NORTH AMERICA, INC.

Tighten down nuts from inside to outside.

Tightening torque. See ENGINE - TIGHTENING TORQUES -- ALPINA .

IMPORTANT: Do not mix up the camshaft bearing covers of cylinders 1 to 4 and 5 to 8.

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

Install nuts and tighten down.

Tightening torque. See ENGINE - TIGHTENING TORQUES -- ALPINA .

Fig 5: Identifying Bearing Cap L E1 And Nuts
G04773870Courtesy of BMW OF NORTH AMERICA, INC.

Rotate eccentric shaft at dihedral head as illustrated in order to reduce tension on torsion spring (1).

Pretension torsion spring (1) with a cable strap (2) and carefully fit on roller (3).

Fig 6: Identifying Pretension Torsion Spring With Cable Strap
G04777191Courtesy of BMW OF NORTH AMERICA, INC.

Rotate eccentric shaft at dihedral head as shown in illustration back to minimum stroke position.

Fig 7: Rotating Eccentric Shaft
G04777192Courtesy 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.

Fig 8: Identifying Inlet Camshaft At Hexagon Head
G04777193Courtesy 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.