Audi Q7 2007 Workshop Manual page 84

Audi Q7 2007 !
6
6-cylinder TDI engine (3.0 ltr. 4-valve common rail), mechanics 01.2006
Note
If the locking pins cannot be inserted in the camshafts, the
camshafts can be turned slightly using adapter -T40061-. To
do so, screw securing bolts for camshaft sprocket into cam-
shaft.
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.
–
Install timing chain (left-side) with camshaft sprocket and
chain tensioner.
•
The elongated holes in the sprocket must be aligned cen-
trally over the tapped holes in the camshaft.
–
Tighten bolts -1- for chain tensioner.
–
Screw in two bolts -2- for sprocket, but do not tighten
bolts.
•
It should just be possible to turn the sprocket on the cam-
shaft without axial movement.
–
Lock camshaft (left-side) with locking pin -T40060-.
•
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.
–
Pull drill bit -3- from locating hole, this releases the chain
tensioner (left-side).
–
Install timing chain (right-side) with camshaft sprocket and
chain tensioner.
•
The elongated holes in the sprocket must be aligned cen-
trally over the tapped holes in the camshaft.
–
Tighten bolts -1- for chain tensioner.
–
Screw in two bolts -2- for sprocket, but do not tighten
bolts.
•
It should just be possible to turn the sprocket on the cam-
shaft without axial movement.
–
Lock camshaft (right-side) with locking pin -T40060-.
•
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.
–
Pull drill bit -3- out of locating hole; this releases the chain
tensioner (right-side).
78
Repair Group 13 – Crankshaft group
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