Audi Q7 2007 Workshop Manual page 83

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–
Unscrew bolts -1- from chain tensioner and -2- from cam-
shaft sprocket.
–
Remove camshaft sprocket and chain tensioner (right-
side).
Note
Cover chain tensioner opening with a cloth or similar to stop
small parts dropping in.
Installing
•
Crankshaft -1- locked in "TDC" position with locking pin
-3242-.
Note
Renew gaskets, seals and O-rings.
♦
Renew the bolts tightened with specified tightening angle.
♦
Caution!
The crankshaft must not be at "TDC" at any cylinder when
the camshafts are turned. Otherwise, there is a risk of dam-
age to valves and piston crowns.
–
Check that camshafts on both cylinder heads are posi-
tioned at "TDC".
•
It should be possible to lock camshafts with locking pins
-T40060-.
•
The side pin -arrow- in each locking pin -T40060- must be
in line with the imaginary line between the locking pin and
the centre of the camshaft.
Cylinder bank 1 (right-side):
Cylinder bank 2 (left-side):
–
Remove locking pins -T40060- from both camshafts.
6-cylinder TDI engine (3.0 ltr. 4-valve common rail), mechanics 01.2006
Audi Q7 2007 !
2 Servicing work on timing chain end
6
77