Audi Q7 2007 - Page 67

Audi Q7 2007 !
6-cylinder TDI engine (3.0 ltr. 4-valve common rail), mechanics 01.2006
2 Servicing work on timing chain end
61
6
– Insert sealing elements -2- and -5-
– Apply beads of sealant -1- and -4- onto clean sealing sur-
faces of timing chain cover (bottom) as illustrated.
• The grooves on the sealing surfaces must be completely
filled with sealant.
• The bead of sealant must project 1.5 … 2.0 mm above the
sealing surface.
• The beads of sealant round drillings -3- and -6- must be
1.5 … 2.0 mm thick
– Check whether the two dowel sleeves are fitted in the cyl-
inder block; install if necessary.
– Fit timing chain cover (bottom) and tighten bolts as fol-
lows:
– Apply bead of sealant onto clean sealing surface of timing
chain cover (left-side) as illustrated.
• The groove -1- on the sealing surface must be completely
filled with sealant.
• The bead of sealant must project 1.5 … 2.0 mm above the
sealing surface.
– Fit gasket -2-.
Stage Tighten
I
– Tighten bolts -1 … 9- to 5 Nm in diagonal se-
quence starting from inside and working out-
wards.
II
– Tighten bolts -1 … 7- to 9 Nm in diagonal se-
quence starting from inside and working out-
wards.
III
– Tighten bolts -8- and -9- to 22 Nm.
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