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

-- If necessary, remove the fuel rail. Refer to FUEL RAIL, REMOVING AND INSTALLING .

-- Insert the :VAS6419  in the :VAS6095A  .

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-- 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.

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  .

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

Intake Side: 

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

Exhaust Side: 

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

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-.
  Fig 1: Insert The Valve Stem Seal In The 3365

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-- Lightly oil the valve stem seal sealing lip.

-- Insert the valve stem seal in the :3365  -5- 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 shown.

Intake Side: 

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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  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.