Valve Stem Seals, Removing And Installing, Cylinder Head Installed
Special tools and workshop equipment required
- Spark Plug Removal Tool: 3122B
- Puller - Valve Seal: 3364
- Seal Installer - Valve Stem: 3365
- Valve Cotter Tool Kit - Adapter: T40012
- Torque Wrench, 6-50Nm: VAG1331A
- Valve Cotter Tool Kit: VAS5161
- Valve Cotter Tool Kit - Guide Plate 19C: VAS5161/19C
Remove the Valve Stem Seals
-- Remove the camshafts. Refer to CAMSHAFT, REMOVING AND INSTALLING .
-- Mark the allocation of the roller rocker lever and the hydraulic lifter so they can be installed again.
-- Remove the roller rocker lever with the hydraulic lifter and place them on a clean surface.
-- Remove the spark plugs using a : 3122B .
-- Fasten the : VAS5161/19C with the : VAS5161/12 on the cylinder head as shown.
-- Set the piston for the respective cylinder to "bottom dead center (BDC)".
-- Install the : T40012 in the spark plug threads.
-- Connect compressed air with at least 6 bar (87.02 psi) pressure.
-- Loosen stuck valve retainers using a Punch: VAS5161/3A and a plastic hammer.
For the Intake Side
-- Install the : VAS5161/6 with the : VAS5161/5 in the center threads on the : VAS5161/19C .
-- Insert the : VAS5161/8A in the : VAS5161/19C .
-- Engage the : VAS5161/2 on the : VAS5161/6 .
For the Exhaust Side
-- Install the : VAS5161/6 with the : VAS5161/5 in the outer threads on the : VAS5161/19C .
-- Press down the : VAS5161/8A and at the same time turn the knurled thumb screw on the : VAS5161/8A to the right until the points engage in the valve retainers.
-- Move the knurled thumb screw back and forth slightly. This presses the valve retainers apart and captures them in the installation cartridge.
-- Release the : VAS5161/2 .
-- Remove the : VAS5161/8A .
-- Remove the valve stem seals using : 3364 .
-- If the : 3364 cannot be used because there is not enough space, drive the spring pin -arrow- out using a drift and remove the impact attachment.
-- Position the lower section of the : 3364 on the valve stem seal.
-- Place the drift -1- in the hole in the lower section of the removal tool.
-- Position the extractor lever on the puller and remove the valve stem seal -arrow-.
Valve Stem Seals, Installing
-- Place the plastic sleeve -A- that is included with the new valve stem seals -B- on the valve stem.
-- Lightly oil the valve stem seal sealing lip.
-- Slide the valve stem seal onto the plastic sleeve.
-- Carefully press the valve stem seal onto the valve guide with the : 3365 .
-- Remove the plastic sleeve.
-- Insert the valve spring and valve spring retainer.
-- Connect the : VAS5161A as shown.
Intake Side
Exhaust Side
If the valve retainers were removed from the assembly cartridge, they must then be inserted into the : VAS5161/18 .
Press the : VAS5161/8A onto the insertion tool from above.
-- Press the : VAS5161/8 down with the : VAS5161/2 and rotate the cartridge knurled thumb screw back and forth while pulling up.
-- Release the : VAS5161/2 with the knurled thumb screw pulled.
-- Remove the : VAS5161A .
Further assembly is performed in the reverse order of removal, but observe the following:
-- Install the camshafts. Refer to CAMSHAFT, REMOVING AND INSTALLING .