Installing valve stem seals

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NOTE: RISK OF DAMAGE
Contaminant or foreign body .
Contamination can result in malfunctions, loss of function or leaks .

Adhere to the utmost cleanliness.
Protect components from contamination e.g. by covering.
Close off line connections with seal plugs.

NOTE: The description is for one component only. The procedure is identical for all further components.

Remove oil and dirt from the contact surface (1) .

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NOTE: TECHNICAL INFORMATION
As an alternative to special tool 0 490 797 (11 1 960) , the assembly sleeves delivered with the spare part can be used (see applicable BMW parts catalogue).
Make sure that the special tool 0 490 797 (11 1 960) or the assembly sleeves are used when installing the valve stem seal.

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Guide in and install special tool 0 490 797 (11 1 960) or assembly sleeves on valve (1) .

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Replace the valve stem seal (1) or assembly sleeves.
Parts: Valve stem seal, assembly sleeves
Guide in and install valve stem seal (1) on special tool 0 490 797 (11 1 960) or assembly sleeves .

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Guide out and remove special tool 0 490 797 (11 1 960) or assembly sleeves.

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Prepare special tool 0 493 249 (11 6 380) .

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Press the valve stem seal (1) onto the cylinder head 0 493 249 (11 6 380) up to the stop using special tool .

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Make sure that the valve stem seal (1) is correctly positioned on cylinder head (2) .

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