RS 4 Quattro Sedan V8-4.2L (BNS) (2007)
‹› The toothed belt tensioner is lubricated with oil and should only be compressed slowly by applying constant pressure.
CAUTION!
The engine could be destroyed.
‹› To prevent small parts from accidentally entering the engine through the opening in the timing chain compartment, cover the opening
with a clean cloth.
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Remove bolts - 1 - and - 2 - on left cylinder head and remove both camshaft adjusters.
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For re-installation, identify installation location of camshaft adjuster with paint.
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Remove bolts - 1 - and - 2 - on right cylinder head and remove both camshaft adjusters.
Installing
‹› Replace bolts which have been tightened to torque.
CAUTION!
Risk of damaging valves and piston crowns.
‹› If camshafts are rotated, crankshaft may not rest with any piston at " TDC".
‹› Drive chain for timing mechanism installed. Refer to => [ Timing Mechanism Drive Chain, from 03.2007 ] See: Timing Mechanism Drive Chain,
From 03.2007.
‹› Secure crankshaft in "TDC" position using Crankshaft Holder (3242).