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Install timing chain and chain tensioner with tensioning rail for in‐
termediate shaft drive:
– First set crankshaft to TDC No. 1 cylinder. For this, the ground
down tooth of drive sprocket -arrow- must align with main
bearing joint.
– Install both pins without collar for guide rail and tighten to
10 Nm. Fit guide rail on studs.
– Turn intermediate shaft with flattened side upwards.
– Insert timing chain into guide rail and place on crankshaft.
– Insert large sprocket into timing chain so that lug on sprocket
aligns with marking behind on cylinder block -arrow B-.
– Fit sprocket onto intermediate shaft.
When installing, ensure that timing chain runs completely straight
in guide rail from crankshaft to intermediate shaft.
• Ground tooth of drive sprocket must align with main bearing
joint -arrow A-.
• Lug on sprocket of intermediate shaft must align with marking
behind -arrow B-.
– If large sprocket cannot be fitted, turn intermediate shaft slight‐
ly.
Note
If timing chain has already been used, note marking for direction
of rotation
⇒ page 22
.
– Fit small sprocket of intermediate shaft. Installation is only
possible in one position.
– Tighten bolt -arrow- hand-tight only as small sprocket has to
be taken off again.
– Now install chain tensioner.
– To do this, release locking teeth of chain tensioner -A- with a
small screwdriver and press tensioning rail against chain ten‐
sioner.
Phaeton 2003 ➤
6-cylinder injection engine - Edition 02.2014
60
Rep. gr.15 - Cylinder head, valve gear
