Cylinder Head Installed: Procedure

• Remove the camshafts. Refer to CAMSHAFT, REMOVING AND INSTALLING .
• 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.
• Remove the spark plugs using the -3122B-.

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• Tighten the -VAS5161/19B- 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.
• Connect compressed air with at least 6 bar (87.02 psi) pressure.
• Loosen stuck valve retainers using a -VAS5161/3A- and a plastic hammer.

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Intake Side: 

• Install the -VAS5161/6- with the -VAS5161/5- in the center threads of the -VAS5161A/19B-.

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Exhaust Side: 

• Install the -VAS5161/6- with the -VAS5161/5- in the outer threads of the -VAS5161A/19B-.

Continuation: 

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• Insert the -VAS5161/8A- into the -VAS5161/19B-.
• 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-.

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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.
• Place the drift -1- in the hole in the lower section of the removal tool.
• Position the extractor lever on the puller and remove the valve stem seal in direction of -arrow-.

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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-.

• Lightly oil the valve stem seal sealing lip.

• Depending on the version/manufacturer of the valve stem seal, use the -3365- or -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.
• Connect the -VAS5161A- as shown.

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Intake Side: 

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Exhaust Side: 

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Continuation: 

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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 -VAS5161/8A- onto the insertion tool from above.

• 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-.
• Repeat the procedure on each valve.