Valve Stem Seals With Cylinder Hear Removed, Replacing: Procedure

-- Remove the camshafts. Refer to CAMSHAFT, 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.

-- Insert the :VAS6419 in the :VAS6095 .

Fig 1: Identifying Cylinder Head Tensioning Device VAS 6419

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

-- 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.

-- Position the Valve Cotter Tool Kit - Punch:VAS5161/3 on the valve spring plate and loosen the stuck valve retainers with a plastic mallet.

Fig 2: Identifying Special Tool - Drift VAS 5161/3

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-- Set the Valve Cotter Tool Kit - Guide Plate 19B:VAS5161/19B on the cylinder head.

Fig 3: Identifying Guide Plate

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-- Secure the guide plate with the :VAS5161/12 .

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

Fig 4: Identifying Engaging Device VAS 5161/6, Installation Fork VAS 5161/5 And Guide Plate, Removal/Installation

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-- Push :VAS5161/8 into guide plate.

-- 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 thumb screw back and forth slightly. This presses the valve retainers apart and captures them in the installation cartridge.

-- Release the pressure fork.

-- Remove the cartridge.

-- Unfasten guide plate and turn it aside.

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

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

Fig 5: Identifying 3364

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Fig 6: Identifying Plastic Sleeve, New Valve Stem Oil Seals & Valve Stem Seal Driver 3365

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CAUTION:

Risk Of Damage When Installing Valve Stem Seals.

Place the plastic sleeve -A- that is attached to valve stem seals -B- on valve stem.

-- Lightly oil the valve stem seal.

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

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

-- Remove the plastic sleeve again.

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

Fig 7: Identifying Installation Cartridge VAS 5161/8

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The large diameter of the valve retainers point upward.

-- Press the cartridge from above onto the insertion device and capture retainers.

-- Insert valve spring and valve spring plate.

Fig 8: Camshaft Cylinder Head Bank 1 (Right)

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The tight spring coils -arrow- face toward cylinder head.

-- Install the :VAS5161/19B in the cylinder head.

-- Insert installation cartridge in guide plate.

-- 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.

Fig 9: Identifying Engaging Device VAS 5161/6 With Installation Fork VAS 5161/5

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