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Home >> Audi >> 2018 >> A4 Prestige >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Cylinder Head, VALVETRAIN [CVKB, DBPA, CWNA, CVLA, DEMA, DHDA, DKUA] >> 15 Cylinder Head, VALVETRAIN >> VALVETRAIN >> Valve Stem Seals, Removing And Installing >> ;Valve Stem Seals, Removing And Installing, Cylinder Head Removed >> Removing

;Valve Stem Seals, Removing And Installing, Cylinder Head Removed: Removing

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

-- Insert the :VAS6419  in the :VAS6095A  .

GWWA15-11665Courtesy of AUDI OF AMERICA, LLC

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

-- Connect the cylinder head tensioning device to 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.

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

Fig 1: Identifying Valve Cotter Tool Kit - Guide Plate 19cVAS5161/19C
GWWA15-11800Courtesy 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 2: Identifying Valve Cotter Tool Kit - Guide Plate 19cVAS5161/19C
GWWA15-11801Courtesy of AUDI OF AMERICA, LLC

-- Insert the :VAS5161/3  in the guide plate and loosen the stuck valve retainers with a plastic mallet.

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

Fig 3: Identifying Valve Cotter Tool Kit - Guide Plate 19c VAS5161/19C
GWWA15-11368Courtesy 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.

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

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

Fig 4: Identifying Valve Seal Removal Tool 3364
GWWA15-11316Courtesy of AUDI OF AMERICA, LLC