Crankshaft Dimensions; Measuring Axial Clearance - Audi Q7 2007 Workshop Manual

Audi Q7 2007 !
6
6-cylinder TDI engine (3.0 ltr. 4-valve common rail), mechanics 01.2006
Matching crankshaft bearing shells to bearings in retaining
frame
Bearing shells of the correct thickness are assigned to the
♦
bearing caps at the factory. Coloured dots on bearing shell
are used to identify bearing shell thickness.
The correct allocation of bearing shells to crankshaft is in-
♦
dicated by a sequence of letters on the crankshaft webs.
The number "1" -arrow- preceding the sequence of letters
indicates the colour code for No. 1 bearing.
Letter on crankshaft
R =
G =
B =
Bearing bush for torque converter
–
On vehicles with automatic gearbox, check that bearing
bush -arrow- is inserted in rear of crankshaft. Drive in bear-
ing bush if necessary.
3.2

Crankshaft dimensions

Honing di- Crankshaft main
bearing journal ∅
mension
(in mm)
Basic dimen-
65.00
sion
3.3

Measuring axial clearance

Special tools and workshop equipment required
Universal dial gauge bracket -VW 387-
♦
94
Repair Group 13 – Crankshaft group
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Colour coding of bearing
Red
Yellow
Blue
Crankshaft conrod
– 0.022
60.00
– 0.042
journal ∅
– 0.022
– 0.042