Valve Stem Seals, Removing And Installing, Cylinder Head Removed

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Special tools and workshop equipment required

Puller - Valve Seal: 3364
Seal Installer - Valve Stem: 3365 for valve stem seal with a simple sealing lip. Refer to Figure.
Seal Installer - Valve Stem: T40376/1 , for valve stem seal with a double sealing lip. Refer to Figure.
Valve Keeper Tool Kit: VAS5161A
: VAS5161/2
: VAS5161/6
: VAS5161/5
: VAS5161/6
: VAS5161/8A
: VAS5161/18
: VAS5161/19C
Engine and Transmission Holder: VAS6095A
Cylinder Head Tensioning Device: VAS6419
Mounting Sleeve. Refer to Parts Information

Procedure

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

-- Remove the roller rocker lever with the hydraulic lifter 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 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.

Guide Plate, Reworking:

Fig 1: Identifying Valve Cotter Tool Kit - Guide Plate 19c VAS5161/19C

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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 .

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

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

Intake Side:

Fig 3: Identifying Engaging Device VAS 5161/6 With Installation Forks VAS 5161/5 Installed Into Guide Plate VAS 5161/19

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-- Install the : VAS5161/6 with the : VAS5161/5 in the center threads of the : VAS5161/19C .

Exhaust Side:

Fig 4: Identifying Pressure Fork VAS 5161/2

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-- Install the : VAS5161/6 with the : VAS5161/5 in the outer threads of the : VAS5161/19C .

Continuation:

-- Insert the : VAS5161/8A into the : VAS5161/19C .

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

-- 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 .

Fig 5: Identifying Valve Seal Removal Tool 3364

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In order not to damage the valve stem seal -4- during installation, mount the Mounting Sleeve -3- on the valve stem -2-.

Fig 6: Insert The Valve Stem Seal In The 3365
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-- Lightly oil the valve stem seal sealing lip.

Depending on the version/manufacturer of the valve stem seal, use the Seal Installer - Valve Stem: 3365 or Fitting Tool : T40376/1

-- Insert the valve stem seal in the Seal Installer - Valve Stem -5- and carefully press on over the Mounting Sleeve on the valve guide -1- all the way.

-- Remove the Mounting Sleeve.

-- Insert the valve spring and valve spring retainer.

-- Install the : VAS5161A as shown.

Intake Side:

Fig 7: Identifying Engaging Device VAS 5161/6 With Installation Forks VAS 5161/5 Installed Into Guide Plate VAS 5161/19

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Exhaust Side:

Fig 8: Identifying Pressure Fork VAS 5161/2

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Continuation:

Fig 9: Identifying Installation Cartridge VAS 5161/8

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If the valve retainers were removed from the assembly cartridge, they must then be inserted into the : VAS5161/18 .

-- Press the : VAS5161/8 down with the : VAS5161/2 and rotate the cartridge knurled thumb screw back and forth while pulling up.

-- Release the : VAS5161/2 with the knurled thumb screw pulled.

-- Remove the : VAS5161A .