Valve Stem Seals, Removing And Installing, Cylinder Head Installed: Removing

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2020 Audi S4, 2020 Audi A4, 2019 Audi S4, 2019 Audi A4, and 2018 Audi S4. However, it is still accessible from the selected car via links, so may be relevant.

-- Remove the camshafts. Refer to CAMSHAFT, REMOVING AND INSTALLING .

-- Remove the spark plugs using the :3122B .

Courtesy of AUDI OF AMERICA, LLC

-- Set the piston for the respective cylinder to "bottom dead center (BDC)".

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

Fig 1: Identifying Valve Cotter Tool Kit - Punch VAS 5161/3

Courtesy of AUDI OF AMERICA, LLC

-- Check if the opening -arrow- is present.

Fig 2: Identifying Valve Cotter Tool Kit - Guide Plate 19cVAS5161/19C

Courtesy of AUDI OF AMERICA, LLC

-- If necessary, rework the :VAS5161/19C -arrow- until the guide plate touches the cylinder head and the guide pin -1- is free.

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

Fig 3: Placing Valve Cotter Tool Kit - Guide Plate 19C VAS 5161/19C On Cylinder Head

Courtesy of AUDI OF AMERICA, LLC

-- Install the :T40012 in the spark plug threads.

-- Connect the adapter to the compressed air using a commercially available intermediate piece and give steady pressure.

Minimum Pressure: 6 bar (87.02 psi)

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

Fig 4: Identifying Valve Cotter Tool Kit - Guide Plate 19c VAS5161/19C

Courtesy of AUDI OF AMERICA, LLC

-- Push the :VAS5161/8A into the guide plate.

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

-- At the same time, turn the installation cartridge knurled bolt right until points engage in the valve retainers.

-- Move the knurled bolt left and right slightly. This presses the valve retainers apart and captures them in the assembly cartridge.

-- Release the pressure fork.

-- Remove the assembly cartridge.

-- Remove the guide plate and turn it aside.

The pressurized air hose remains connected.

-- Remove the valve spring and the valve spring retainer.

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

Fig 5: Identifying Valve Seal Removal Tool 3364

Courtesy of AUDI OF AMERICA, LLC