S4 V8-4.2L (BHF) (2004)
Camshaft: Service and Repair
Camshaft, removing and installing
Note: Removal and installation at right cylinder head is depicted in the following description.
Removing
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Remove engine
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Disconnect engine and transmission
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Remove camshaft timing chains from camshafts
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Remove housing for camshaft adjustment solenoid valves - arrows -.
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Unscrew bearing caps - 1 -, - E3 -, - E5 -, - A3 - and - A5 -.
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Remove oil deflector - arrow -.
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Loosen and remove bearing caps - E2 -, - E4 -, - A2 - and - A4 - for intake and exhaust camshafts, alternating and in diagonal sequence.
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Remove intake and exhaust camshaft.
Installing
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Crankshaft secured in TDC position using crankshaft holder 3242.
Note: Always replace bolts that are tightened to torque as well as O-rings and gaskets.
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Install camshafts at TDC position into cylinder head.
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Slits - arrows - at front in camshafts must stand parallel at same height with upper edge of cylinder head.