Audi Q7 2007 - Page 87

Audi Q7 2007 !
6-cylinder TDI engine (3.0 ltr. 4-valve common rail), mechanics 01.2006
2 Servicing work on timing chain end
81
6
– Apply adapter -T40061- to the heads of the loosened
bolts.
– Turn camshaft slightly backwards and forwards with
adapter -T40061- until locking pin -T40060- can be insert-
ed.
• The side pin -arrow- on the locking pin -T40060- must be
in line with the imaginary line between the locking pin and
the centre of the camshaft.
– With adapter -T40061- and locking pin -T40060- still in po-
sition, tighten bolts on sprocket to approx: 5 Nm.
– Remove locking pin -T40060- and adapter -T40061-.
– Tighten bolts on sprocket to final torque.
– Repeat this procedure on the other cylinder bank if neces-
sary.
– Remove locking pin -3242-.
– Check valve timing once again ⇒ page 79.
Remaining installation steps are carried out in reverse se-
quence; note the following:
– Screw plug -arrow- for “TDC” mark into top section of
sump with a new seal.
– Install timing chain covers ⇒ page 60.
– Install coolant pipe (rear right) ⇒ page 181.
– Install exhauster pump ⇒ page 52.
– Install starter catalytic converter ⇒ page 204.
– Fill cooling system ⇒ page 162.
Tightening torques
Component Nm
Chain tensioner to cylinder head
5 + 90°
1)2)
Camshaft sprocket to camshaft 24
Screw plug in top section of sump 35
•
1)
Renew bolts.
•
2)
90° = one quarter turn.
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