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-.
-- Remove the spark plugs using the Spark Plug Removal Tool:3122 B .
-- 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 .
-- Align the Guide Plate:VAS 5161A/44 on the cylinder head at the same time pay attention to the marking:
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.
-- 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 .