A3 Quattro V6-3.2L (BUB) (2008)
Crankshaft: Service and Repair
Crankshaft Assembly Overview
Crankshaft Assembly Overview
1 -
Cylinder block
2 -
Oil spray jet for piston cooling
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For crankshaft bearing 2 to.
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Opening pressure 2.0 bar pressure
3 -
Bearing shell
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For cylinder block with oil inlet bore
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Do not interchange used bearing shells (mark)
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Replacement parts are only color coded "yellow"
4 -
Crankshaft
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Axial play new: 0.07 to 0.23 mm; wear limit: 0.30 mm
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Measure radial clearance with Plastigage(R)
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Do not turn crankshaft when measuring radial play
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Radial clearance, new: 0.02 to 0.06 mm; wear limit: 0.10 mm
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Timing chain wheel built into crankshaft
5 -
Thrust washer
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For bearing.
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Observe locating point
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Lubricating groove faces crankshaft
6 -
Bearing cap
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Bearing cap 1: Belt pulley side
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Bearing cap 5 with notches for thrust washers
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Retaining tabs of bearing shells and cylinder block/bearing caps must lie above one another