Valve Shaft Seals, Removing And Installing, Cylinder Removed: Notes

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2018 Audi S7, 2018 Audi RS 7, 2017 Audi S7, 2017 Audi RS 7, and 2016 Audi S7. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Puller - Valve Seal :3364
Seal Installer - Valve Stem :3365
Valve Keeper Tool Kit :VAS5161A with Valve Cotter Tool Kit - Guide Plate 19c :VAS5161/19C or as an alternative Valve Cotter Tool Kit - Guide Plate 19B :VAS5161/19B
Valve Keeper Tool Kit - Pressure Fork :VAS5161/2
Valve Cotter Tool Kit - Punch :VAS5161/3
Guide Forks M6/M8 with Valve Cotter Tool Kit - Threaded Studs :VAS5161/5
Valve Cotter Tool Kit - Retainer :VAS5161/6
Valve Cotter Tool Kit - Assembly Cartridge :VAS5161/8
Valve Cotter Tool Kit - Knurled Thumb Screws :VAS5161/12
Valve Keeper Tool Kit - Valve Insertion Device :VAS5161/18
Engine and Transmission Holder :VAS6095A
Cylinder Head Tensioning Device :VAS6419
Mounting Sleeve.

Reworking the :VAS5161/19C :

NOTE:

In place of the :VAS5161/19C , the :VAS5161/19B may also be used. To do this, the following reworking must be completed as follows:

-- Lengthen the long opening to 2 mm as shown in the illustration.

NOTE:

To use this, the guide plate is only attached to the cylinder head with a knurled bolt.

-- Remove the intake manifold. Refer to INTAKE MANIFOLD, REMOVING AND INSTALLING .

-- Mark the allocation of the roller rocker lever and the hydraulic adjusting elements so they can be installed again.

-- Remove the roller rocker lever with the hydraulic lifter and place them on a clean surface.

-- Insert the :VAS6419 in the :VAS6095A .

-- Tension the cylinder head on the cylinder head tensioning device, as illustrated.

-- Connect the cylinder head tensioning device to the compressed air.

-- Slide the air cushion with the lever -arrow- under the combustion chamber onto the valve stem seal that will be removed.

-- Let enough compressed air flow into the air cushion until it contacts the valve plate.

-- Position the : VAS5161/3 on the valve spring plate and loosen the stuck valve retainers with a plastic mallet.

-- Place the : VAS5161/19C on the cylinder head.

-- Secure the guide plate with the :VAS5161/12 .

-- Install the :VAS5161/6 with the :VAS5161/5 in the guide plate.

-- Push installation cartridge :VAS5161/8 into guide plate.

-- Engage the : VAS5161/2 at the engaging device and press the installation cartridge downward.

-- At the same time, rotate the cartridge knurled screw right until points engage in 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 pressure fork.

-- Remove the cartridge.

-- Unfasten guide plate and turn it aside.

-- Remove the valve spring and the valve spring plate.

-- Remove the valve stem seal with the :3364 .

In order not to damage the valve stem seal -4- during installation, mount the Mounting Sleeve -3- on the valve stem -2-.

-- Lightly oil the valve stem seal.

-- Insert the valve stem seal in the :3365 and carefully press on over the Mounting Sleeve on the valve guide -1- all the way.

-- Remove the Mounting Sleeve.

If the valve retainers were removed from the installation cartridge, they must then be inserted into the :VAS5161/18 .

The large diameter of the valve retainers point upward.

-- Press the cartridge from above onto the insertion device and capture retainers.

-- Insert the valve spring and the valve spring plate, for allocation. Refer to 32.

-- Attach the :VAS5161/19C onto the cylinder head again.

-- Insert installation cartridge in guide plate.

-- Press the pressure fork down and pull the knurled screw up while turn left and right. This inserts the valve retainers.

-- Release the pressure fork with the knurled screw still raised.

-- Repeat the procedure on each valve.