Valve Stem Seals, Removing And Installing, Cylinder Head Removed: Removing
-- Remove the intake manifold. Refer to INTAKE MANIFOLD, REMOVING AND INSTALLING .
-- Insert the Cylinder Head Tensioning Device:VAS6419 in the Engine and Gearbox Bracket VAS6095A: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.
-- Align the Valve Keeper Tool Kit - Guide Plate:VAS5161/44 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:VAS5161/12 .
-- Position the Valve Cotter Tool Kit - Punch:VAS5161/3A on the valve spring and loosen the stuck valve retainers with a plastic mallet.
-- Install the Valve Cotter Tool Kit - Adapter:T40012 in the spark plug threads.
-- Install the Valve Cotter Tool Kit - Retainer:VAS5161/6 with the Guide Forks M6/M8 with Valve Cotter Tool Kit - Threaded Studs:VAS5161/5 in the guide plate.
-- Push the Valve Cotter Tool Kit - Assembly Cartridge:VAS5161/8A into the guide plate.
-- Engage the Valve Keeper Tool Kit - Pressure Fork:VAS5161/2 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 retainers.
-- Move the knurled bolt left and right slightly. This presses the valve retainers apart and captures them in the assembly cartridge.
-- Release the pressure fork.
-- Remove the assembly cartridge.
-- Detach and remove the guide plate.
-- Remove the valve spring and the valve spring retainer.
-- Remove the valve stem seal using the Puller - Valve Seal:3364 .