RS 6 V8-4.2L Turbo (BCY) (2003)
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Disconnect electrical harness connector -1- at camshaft adjustment solenoid valve.
Note: Disregard -item 2-.
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Remove right cylinder head cover go to Page 15-11
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Rotate crankshaft approximately 45° counter-clockwise by turning securing bolt for toothed belt sprocket so that none of the pistons are at TDC.
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Re-check TDC position of camshafts.
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The marks on the two camshafts must be in line with arrows on bearing caps.
If old drive chain is being re-installed:
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Clean chain and camshaft sprockets opposite the two arrows on bearing caps and mark installation position with colored marks.
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The distance between the two arrows (and thus between colored markings) is 16 rollers on chain.
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The notch on intake camshaft is offset slightly towards inside in relation to chain roller -16-.
Note: Do not mark chain with a center punch or by making a notch or similar.
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