Valve Stem Seals, Removing And Installing, Cylinder Head Removed

Special tools and workshop equipment required 

• Puller - Valve Seal :3364 
• Seal Installer - Valve Stem :3365 
• Valve Keeper Tool Kit :VAS5161A 
• Valve Cotter Tool Kit - Guide Plate 19C :VAS5161/19C 
• Engine and Gearbox Bracket VAS6095A :VAS6095A 
• Cylinder Head Tensioning Device :VAS6419 
• Mounting Sleeve. Refer to parts information

Procedure 

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

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

-- If necessary, remove the intake manifold with the fuel rail. Refer to INTAKE MANIFOLD WITH FUEL RAIL, REMOVING AND INSTALLING .

-- If necessary, remove the turbocharger. Refer to TURBOCHARGER, REMOVING AND INSTALLING .

-- Insert the :VAS6419  in the :VAS6095A  .

-- 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.

-- Set the :VAS5161/19B  on the cylinder head.

-- Secure the guide plate with the :VAS 5161/12  .

-- Insert the :VAS5161/3A  into 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.

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

Intake Side: 

-- Engage the :VAS5161/2  on the engaging device as illustrated.

Exhaust Side: 

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

Continuation: 

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

-- 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  .

• 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 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.

-- Install the :VAS5161A  as shown.

Continuation: 

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

-- Press the :VAS5161/8  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  .