Valve Stem Seals, Removing And Installing, Cylinder Head Installed: Removing

-- Remove the camshafts. Refer to CAMSHAFT, REMOVING AND INSTALLING .

-- Cylinder 1 intake side: remove the bolts -arrows- and also remove the engine lifting eye -1-.

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-- Remove the spark plugs using the Spark Plug Removal Tool: 3122 B  .

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-- Set the piston for the respective cylinder to "bottom dead center (BDC)", to do so, turn the crankshaft at the hex fitting of the Vibration Damper Assembly Tool - Turning Over Tool: T10531/3  .

Fig 1: Identifying Assembly Tool - Turning Over Tool T10531/3

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-- Align the Guide Plate: VAS 5161A/44  on the cylinder head at the same time pay attention to the marking:

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A -

Exhaust Valves

E -

Intake Valves

-- Secure the guide plate with the Valve Cotter Tool Kit - Knurled Thumb Screws : VAS 5161/12  .

-- Install the Valve Cotter Tool Kit - Adapter: T40012  in the spark plug threads.

-- Connect the adapter to the compressed air using a commercially available intermediate piece and give steady pressure.

• Minimum pressure: 6 bar (87.02 psi)

-- Position the Valve Cotter Tool Kit - Punch : VAS 5161/3A  on the valve spring and loosen the stuck valve keepers with a plastic mallet.

-- Install the Valve Cotter Tool Kit - Retainer : VAS 5161/6  with the Guide Forks M6/M8 with Valve Cotter Tool Kit - Threaded Studs : VAS 5161/5  in the guide plate.

Fig 2: Identifying Valve Cotter Tool Kit - Guide Plate 19c VAS5161/19C

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-- Push the Valve Cotter Tool Kit - Assembly Cartridge : VAS 5161/8A  into the guide plate.

-- Engage the Valve Keeper Tool Kit - Pressure Fork : VAS 5161/2  at the engaging device and press the installation cartridge downward.

-- At the same time, turn the installation cartridge knurled bolt right until points engage in the valve keepers.

-- Move the knurled bolt left and right slightly. This presses the valve keepers apart and captures them in the assembly cartridge.

-- Release the pressure fork.

-- Remove the assembly cartridge.

-- Remove the guide plate and turn it aside.

• The pressurized air hose remains connected.

-- Remove the valve spring and the valve spring retainer.

-- Remove the valve stem seal using the Puller - Valve Seal: 3364  .

Fig 3: Identifying Valve Seal Removal Tool 3364

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