Valve Stem Seals, Removing And Installing, Cylinder Head Removed: Procedure

WARNING: This page is about a different variant/trim than selected.

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

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

-- Remove the roller rocker levers with the hydraulic adjuster and place them on a clean surface.

-- Insert the :VAS6419 in the :VAS6095A .

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

-- Connect the cylinder head tensioning device to the compressed air.

-- Slide the air cushion with the lever -arrow- under the combustion chambers onto the valve stem seal that will be removed.

-- Let enough compressed air flow into the air cushion until it contacts the valve plate.

Guide Plate, Reworking

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Check if the opening -arrow- is present.

-- If necessary, rework the :VAS5161/19C -arrow- until the guide plate touches the cylinder head and the guide pin -1- is free.

-- Fasten the :VAS5161/19C on the cylinder head as shown using the :VAS5161/12 .

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-- Insert the :VAS5161/3 in the guide plate and loosen the stuck valve retainers with a plastic mallet.

For The Intake Side

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-- Install the :VAS5161/6 with :VAS5161/5 in the center thread of the : VAS5161/19B .

-- Place the :VAS5161/8 in the :VAS5161/19B .

-- Engage the :VAS5161/2 on the :VAS5161/6 .

For The Exhaust Side

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-- Install the :VAS5161/6 with :VAS5161/5 in the outer thread of the :VAS5161/19B .

-- Press down the :VAS5161/8A and at the same time turn the knurled thumb screw on the :VAS5161/8A to the right until the points engage in the 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 :VAS5161/2 .

-- Remove the :VAS5161/8A .

-- Remove the valve stem seals using :3364 .

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