11 34 560 Replacing All Valve Stem Seals (N63O1)

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Special Tools Required:

IMPORTANT: Risk of Damage To Sealing Lip On Valve Stem Seal.
Fit New Valve Stem Seals Only When All Valves Have Been Installed.

Necessary Preliminary Tasks:

Remove All VALVE SPRINGS .

Pull Off Valve Stem Seal (1) with Special Tool 11 1 480 .

Simultaneous Turning and Pulling Will Pull Off The Valve Stem Seal.

Fig 1: Pulling Off Valve Stem Seal Using Special Tool 11 1 480

Courtesy of BMW OF NORTH AMERICA, INC.

Installation Note:

Lubricate Valve Stem with Oil and Insert Valve.

Installation Sleeve 11 1 380 Is Included In The Delivery Specification for The Valve Stem Seals.

Fit Special Tool 11 1 380 .

Coat New Valve Stem Seal (1) with Oil and Install.

Fig 2: Fitting Special Tool 11 1 380 To Valve Stem Seal

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: for Use On The N63O1 Engine, The Special Tool 11 6 380 Must Be Re-Machined According To The Sketch with A 6.2 Mm Drill Bit Dia. To A Depth of A = Approx. 45 Mm.

This Modification Has Already Been Taken Into Account for Reordering.

Fig 3: Identifying Re-Machining Dimensions for Special Tool 11 6 380

Courtesy of BMW OF NORTH AMERICA, INC.

Manually Press On Valve Stem Seal As Far As It Will Go with Special Tool 11 6 380 .

Graphic Shows Engine N63.

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

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble Engine.