Valve Shaft Seals, Removing And Installing, Cylinder Removed: Procedure

-- Remove the camshaft housing. Refer to CAMSHAFT HOUSING, REMOVING AND INSTALLING .

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

-- If necessary, remove the roller rocker levers with the hydraulic adjusting elements and place them on a clean surface.

-- Remove the cylinder head. Refer to CYLINDER HEAD, REMOVING AND INSTALLING .

-- The exhaust manifold and the intake manifold must be removed from the removed cylinder head.

-- Insert the :VAS6419  in the :VAS6095  .

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

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-- Connect the cylinder head tensioning device to the 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.

Cylinder 1, 3 and 4 

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-- Place the :VAS5161A/31  on the cylinder head.

• The label -A- points to the turbocharger side.
• The label -E- point to the intake manifold side.

-- Fasten the guide plate with the :VAS5161/12  by hand.

• The knurled bolts position, as shown in the illustration

Cylinder 2 

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-- Place the :VAS5161A/31  on the cylinder head.

• The label -A- points to the turbocharger side.
• The label -E- point to the intake manifold side.

-- Fasten the guide plate with the :VAS5161/12  by hand.

• The knurled bolts position, as shown in the illustration

Continued for All Cylinders

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-- Insert the :VAS5161/3A  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.

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-- Insert the :VAS5161/8  into the guide plate with the :VAS5161A/31-1  .

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

-- At the same time, rotate the cartridge knurled screw right until points engage in valve retainers.

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

-- Release the pressure fork.

-- Remove the installation cartridge with the sleeve.

-- Remove the valve spring and the valve spring plate.

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

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-- Place the plastic sleeve -A- that is included with the new valve stem seals -B- on the valve stem.

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-- Lightly oil the valve stem seal.

-- Slide the valve shaft seal onto the plastic sleeve.

-- Carefully press the valve stem seal onto the valve guide with the :3365  .

-- Remove plastic sleeve.

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

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• The large diameter of the valve retainers point upward.

-- Press the installation cartridge onto the insertion device for the valve retainers from above and take up valve retainers.

-- Insert valve spring and valve spring plate.

-- Insert the cartridge into the :VAS5161A/31  .

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-- Press the pressure fork down and pull the knurled screw up while turning left and right. This inserts the valve retainers.

-- Release the pressure fork with the knurled screw still raised.

-- Repeat the procedure on each valve.