Remove Valve Stem Seals

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.

-- Remove the spark plugs using a :3122B .

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.

-- Tighten the :VAS5161/19C on the cylinder head as shown using the :VAS5161A/12 .

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-- Set the piston for the respective cylinder to "bottom dead center (BDC)".

-- Install the :T40012 in the spark plug threads.

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-- Connect compressed air with at least 6 bar (87 psi) pressure.

-- Loosen stuck valve retainers using a :VAS5161/3A and a plastic hammer.

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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-- If the :3364 cannot be used because there is not enough space, drive the spring pin -arrow- out using a drift and remove the impact attachment.

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-- Position the lower section of the :3364 on the valve stem seal.

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-- Place the drift -1- in the hole in the lower section of the removal tool.

-- Position the lever on the removal tool and remove the valve stem seal in direction of -arrow-.