Touareg V8-4.2L (AXQ) (2006)
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Secure guide plate with knurled screws (VAS 5161/12).
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Insert drift (VAS 5161/3) into guide plate and loosen stuck valve keepers using a plastic hammer.
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Install engaging device (VAS 5161/6) with (VAS 5161/5) into guide plate (VAS 5161/7).
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Guide installation cartridge (VAS 5161/8) into guide plate (VAS 5161/7).
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Install adapter (T40012) into spark plug hole and using a commercially available adapter apply a constant pressure of at least 6 bar.
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Engage pressure fork (VAS 5161/2) at engaging device (VAS 5161/6) 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 and remove installation cartridge from guide plate.
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Remove guide plate from cylinder head.
‹› Pressurized air line remains connected.
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Remove valve stem seals using Valve Seal Removal Tool (3364).