A8L Quattro Sedan W12-6.0L (BSB) (2005)
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Screw adapter (T40012) with gasket by hand into respective spark plug thread and apply constant pressure.
‹› Minimum pressure: 6 bar positive pressure.
Procedure for outer rows of valves:
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Screw engaging device (VAS 5161/6) with installation fork (VAS 5161/5) into guide plate.
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Push installation cartridge (VAS 5161/8) into guide plate.
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Hook in pressure fork (VAS 5161/2) at engaging device and press down installation cartridge.
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At the same time, turn knurled bolt of installation cartridge to the right, until the points engage in the valve keepers.
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Lightly move knurled bolt back and forth, causing the valve keepers to be pressed apart and be captured in the installation cartridge.
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Release pressure fork.
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Take out installation cartridge.
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Remove guide plate and turn it aside.
‹› Pressurized air hose remains connected.
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Remove valve spring with valve plate.
Procedure for inner rows of valves:
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Screw engaging device (VAS 5161/6) with installation fork (VAS 5161/5) onto cylinder head.