A8 Quattro Sedan V8-4.2L (AUX) (2001)
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Remove right cylinder head cover. Refer to: Vehicle/ Engine, Cooling and Exhaust/ Engine/ Cylinder Head Assembly/ Valve Cover/ Service and
Repair/ See: Cylinder Head Assembly/Valve Cover/Service and Repair
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Rotate crankshaft at mounting bolt for toothed belt sprocket counterclockwise approximately 45° so that no pistons stand at TDC.
Important!
Verify camshaft TDC position again:
- The two camshaft markings must align with both -arrows- on bearing caps. -
When reusing the old drive chain:
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Clean the drive chain and camshaft chain sprockets across from both arrows on the bearing caps and mark installed position with a color
marking.
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The distance between both arrows or colored markings consists of 15 rollers of the drive chain. -
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The notch on intake camshaft is slightly offset inward toward drive chain roller -16-.
Note:
Do not mark chain using a center punch or similar means!
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