11 33 545 Removing and installing/replacing rocker arm shaft (S54)

WARNING: This page is about a different car, the 2002 BMW M Roadster, 2002 BMW M Coupe, 2001 BMW M Roadster, and 2001 BMW M Coupe. However, it is still accessible from the selected car via links, so may be relevant.

(cylinder head removed)

(if necessary inlet or exhaust side)

CAUTION: It is very easy for the adjustment plates to fall down.

Raise rocker arm.

NOTE: The special tool 11 4 400 is magnetic.

Remove all adjustment plates with special tool 11 4 400 and set to one side in order.

Fig 1: Removing Adjustment Plates

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Detach spring clip (1).

Fig 2: Detaching Spring Clip

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Remove camshaft sensor.

Installation:

Replace O-ring and screw.

Release journal screw (1).

Fig 3: Releasing Journal Screw

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NOTE: If the rocker arm shaft cannot be removed by hand towards the front:

Open screw plug (1).

Fig 4: Opening Screw Plug

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Installation:

Replace sealing ring on plug (1).

Tightening torque, 11 33 2AZ. Refer to 11 33 ROCKER ARMS/DRAG ARMS AND BEARINGS .

Slide out rocker arm shaft towards front.

NOTE: Place fingers to one side in orderly fashion.

Worn rocker arms should only be reused at the same cam on the camshaft.

CAUTION: If the inlet and exhaust rocker arm shafts are mixed up: engine damage!

Inlet rocker arm shaft
Exhaust rocker arm shaft
Groove for identifying inlet rocker arm shaft
Opening for journal screw

Fig 5: Identifying Inlet And Exhaust Rocker Arm Shafts
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The groove for identifying the inlet rocker arm shaft is located between the 5th and 6th cylinders.

NOTE: Difference between inlet and exhaust rocker arm shafts, front.

Inlet rocker arm shaft, front, open.
Exhaust rocker arm shaft, front, closed.

Fig 6: Identifying Difference Between Inlet And Exhaust Rocker Arm Shafts - Front
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Installation:

Install rocker arm shaft and feed on rocker arm in so doing.

Align opening for journal screw precisely to cylinder head and insert journal screw (1).

Tighten down journal screw (1).

Tightening torque, 11 33 3AZ. Refer to 11 33 ROCKER ARMS/DRAG ARMS AND BEARINGS .

Fig 7: Tightening Down Journal Screw

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Align rocker arm to valve.

NOTE: Spring clip (1) must snap into place over rocker arm shaft.

Install spring clip (1).

Fig 8: Installing Spring Clip

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CAUTION: It is very easy for the adjustment plates to fall down.

Install adjustment plates for valve clearance only after cylinder head has been installed.