S4 V8-4.2L (BHF) (2004)
Timing Chain: Service and Repair
Drive Chain For Timing Mechanism, Removing and Installing
Drive chain for timing mechanism, removing and installing
Removing
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Remove camshaft timing chains
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Remove chain for power take-off
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Remove glide track - 1 - at left cylinder head.
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Remove chain tensioner - 2 -.
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Remove glide track - 1 - at right cylinder head.
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Remove chain tensioner - 2 -.
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Push glide track of chain tensioner for drive chain in direction of - arrow - and pull off chain tensioner using a drill 3.3 mm diameter drill - item 4
-.
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Mark running direction of timing chain in color.
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Unscrew bolts - 2 - and - 3 - and remove chain sprockets with drive chain and glide track - 1 -.
Installing
Installation is performed in reverse order of removal, noting the following:
Note: Replace bolts which have been tightened to torque.
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Install chain for power take-off
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Install camshaft timing chains.