Replacing the valve stem seals
- Remove valve stem seals 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.
- Installing valve stem seals 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).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). - Refer to Make sure that the special tool 0 490 797 (11 1 960) or the assembly sleeves are used when installing the valve stem seal.
- Refer to Guide in and install special tool 0 490 797 (11 1 960)
or assembly sleeves on valve (1).
- 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.
- Refer to Guide out and remove special tool 0 490 797 (11 1 960)
or assembly sleeves.
- Prepare special tool 0 493 249 (11 6 380).
- Press the valve stem seal (1) onto the cylinder head 0 493 249 (11 6 380)
up to the stop using special tool.
- Make sure that the valve stem seal (1) is correctly positioned on the cylinder head (2).
