11 34 560 Replacing All Valve Stem Seals (N62)

WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

For Special Tool identification, refer to ENGINE - SPECIAL TOOLS - 645CI .

Special Tools Required:

11 1 380
11 6 370
11 6 380

Preliminary tasks are described in Disassembling and assembling cylinder head, refer to 11 12 503 DISASSEMBLING AND ASSEMBLING CYLINDER HEAD (N62/N62TU) .

Press special tool 11 6 370 onto valve stem seal.

Withdraw valve stem seal by turning and simultaneously unscrewing special tool 11 6 370.

Fig 1: Pressing Special Tool 11 6 370 Onto Valve Stem Seal

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Installation:

Lubricate valve stem with oil and insert valve.

Fit special tool 11 1 380.

Fig 2: Fit Special Tool 11 1 380

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Coat new valve stem seal (1) with oil and install.

NOTE: For use on the N62 engine, special tool 11 6 380 must be remachined in accordance with the illustration with a 6.2 mm dia. drill bit to a depth of A = approx. 45 mm.

This modification has already been taken into account for reordering.

Fig 3: Identifying Dimension Of Remachined Tool

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Press on valve stem seal with special tool 11 6 380 by hand as far as it will go.

Fig 4: Pressing On Valve Stem Seal With Special Tool 11 6 380

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