11 34 715 Replacing all valve springs (M52 / S52 / M52TU / M54 / M56)

WARNING: This page is about a different car, the 2002 BMW Z3 and 2001 BMW Z3. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

For Special Tool identification, see SPECIAL TOOLS - Z3 .

Special Tools Required:

11 0 342
11 0 345
11 1 045
11 1 065
11 1 441
11 3 030
11 3 250

(Cylinder head removed)

Preliminary tasks are described in disassembling and assembling cylinder head. Refer to 11 12 503 DISASSEMBLING AND ASSEMBLING CYLINDER HEAD (M52 / S52 / M52TU / M54 / M56) .

Brace bucket tappets with special tool 11 3 250.

Fig 1: Identifying Special Tool 11 3 250

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Lift out bearing strip with bucket tappet.

Installation:

Only re-use used bucket tappets in the same tappet bore.

Arrange bucket tappets by cylinder and place on special tool 11 3 030 in correct order.

Fig 2: Arranging Bucket Tappets By Cylinder And Placing On Special Tool 11 3 030

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Insert special tool 11 1 441 from below in special tool 11 1 065 and secure with special tool 11 1 045.

Fig 3: Inserting Special Tool 11 1 441

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Align special tool 11 0 345 in direction of valve shaft and select appropriate groove in special tool 11 0 342.

Fig 4: Aligning Special Tool 11 0 345 In Direction Of Valve Shaft

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Press down valve spring on spring cap, top, and remove valve keys.

Remove valve spring and plate spring.

Fig 5: Removing Valve Keys

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Arrangement:

Valve.
Valve-stem seal.
Lower plate spring.
Valve spring.
Top plate spring.
Valve tapers.

Fig 6: Identifying Valve Components
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