Guide Plate, Reworking:

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

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

Continuation: 

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-- Tighten the :VAS5161/19C  on the cylinder head as shown using the :VAS5161A/12  .

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

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

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-- Connect compressed air with at least 6.0 bar (87.02 psi) pressure.

-- Loosen stuck valve retainers using a :VAS5161A/3A  and a plastic hammer.

Intake Side: 

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-- Install the :VAS5161/6  with the :VAS5161/5  in the center threads of the :VAS5161A/19C  .

Exhaust Side: 

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-- Install the :VAS5161/6  with the :VAS5161/5  in the outer threads of the :VAS5161A/19C  .

Continuation: 

-- Insert the :VAS5161/8A  into the :VAS5161/19C  .

-- Engage the :VAS5161/2  on the :VAS5161/6  .

-- 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  .

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• In order not to damage the valve stem seal -4- during installation, mount the mounting sleeve -3- on the valve stem -2-.

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-- Lightly oil the valve stem seal sealing lip.

-- 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.

-- Insert the valve spring and valve spring retainer.

-- Connect the :VAS5161A  as illustrated.

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Continuation: 

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• 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 :VAS5161/8A  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  .

-- Repeat the procedure on each valve.