Audi Q7 2007 - Page 74

Audi Q7 2007 !
6-cylinder TDI engine (3.0 ltr. 4-valve common rail), mechanics 01.2006
Repair Group 13 – Crankshaft group
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– Press guide rail of chain tensioner for timing chain (right-
side) in direction of -arrow- and lock chain tensioner by in-
serting a 3.3 mm ∅ drill bit -item 1-.
– Mark running direction of timing chain (right-side) with
paint.
– Unscrew bolts -1- from chain tensioner and -2- from cam-
shaft sprocket.
– Take off camshaft sprocket, chain tensioner and timing
chain (right-side).
Installing
• Crankshaft -1- locked in “TDC” position with locking pin
-3242-.
• Drive chain for valve gear installed ⇒ page 83
♦ Renew seal.
♦ Renew the bolts tightened with specified tightening angle.
– 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):
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.
Note
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