Valve Stem Seals
(With the cylinder head installed)
Special tools and workshop equipment required
- Spark Plug Removal Tool -3122 B-
- Valve Seal Removal Tool -3364-
- Valve Stem Seal Driver -3365-
- Adapter -T40012-
- Torque Wrench (5-50 Nm) -V.A.G 1331-
- Valve Cotters Asm/Disasm Device -VAS 5161-
- Guide Plate for FSI Engine -VAS 5161/19B-
Removing
-- Remove the camshafts. Refer to CAMSHAFTS .
-- Remove the roller rocker arms and place them on a clean surface. Make sure that they are not interchanged.
-- Using the spark plug removal tool -3122 B-, remove spark plugs.
-- Secure the guide plate for FSI engine -VAS 5161/19B- to the cylinder head as shown using the knurled thumb screws -VAS 5161/12-.
-- Adjust the piston of the respective cylinder to the Bottom Dead Center (BDC) position.
-- Install the adapter -T40012- into the spark plug hole and connect compressed air of at least 6 bar positive pressure.
-- Using the punch -VAS 5161/3- and a plastic mallet, tap on any stuck valve retainers in order to loosen them.
Intake Side
-- Install the retainer -VAS 5161/6- using the guide forks M6/M8 with threaded stud -VAS 5161/5- into the center threads in the guide plate for FSI engine -VAS 5161/19B-.
-- Install the assembly cartridge -VAS 5161/8- into the guide plate -VAS 5161/19B-.
-- Install the pressure fork with lever for assembly cartridge -VAS 5161/2- onto the retainer -VAS 5161/6-.
Exhaust Side
-- Install the retainer -VAS 5161/6- using the guide forks M6/M8 with threaded stud -VAS 5161/5- into the outer threads in the guide plate for FSI engine -VAS 5161/19B-.
-- Press down the assembly cartridge -VAS 5161/8-. At the same time, turn the knurled knob on the assembly cartridge -VAS 5161/8- clockwise until the points engage in the valve retainers.
-- Lightly move the knurled knob back and forth, this causes the valve retainers to be pressed apart and captured in the assembly cartridge.
-- Release the pressure fork with lever for assembly cartridge -VAS 5161/2-.
-- Take out the assembly cartridge -VAS 5161/8-.
-- Remove the valve stem seal using the valve seal removal tool -3364-.
-- If the valve seal removal tool -3364- cannot be used due to restricted clearance, drive the roll pin -arrow- out with a drift and remove the impact attachment.
-- Place the lower part of the valve seal removal tool -3364- onto the valve stem seal.
-- Insert a drift -1- into the bore in the lower part of the removal tool.
-- Using the drift -1- as a lever, pull out the valve stem seal in the -direction of the arrow-.
Installing
-- Place a plastic sleeve -A- on the valve stem to prevent damage to the new valve stem seal -B-.
-- Lubricate the sealing lip of the valve stem seal -B-, insert it into the valve stem seal driver -3365- and carefully slide it onto the valve guide.
-- Remove the plastic sleeve -A-.
-- Install the valve spring, spring plate and valve spring retainers.
-- Install the special tools as shown.
-- Install the special tools as shown.
If the valve retainers were removed from the assembly cartridge, they must be inserted into the valve insertion device -VAS 5161/18- next.
Press the assembly cartridge -VAS 5161/8- onto the insertion device from above and capture the valve retainers.
-- Press down the assembly cartridge -VAS 5161/8- with the pressure fork with lever for assembly cartridge -VAS 5161/2- and turn the knurled knob on the assembly cartridge back and forth while pulling it upward at the same time.
-- Release the pressure fork with lever for assembly cartridge -VAS 5161/2- with the knurled knob pulled.
-- Remove the special tools.
The rest of the installation is basically a reverse of the removal sequence.