Audi A8 2003 Workshop Manual page 178

Audi A8 2003 ➤
8-cylinder TDI engine (4.2 ltr. 4-valve common rail), mechanics - Edition 12.2013
Continuation for both sides:
– Fit retaining frame -1- onto camshafts.
• All camshaft bearings must be seated on the camshafts.
– Attach camshaft fitting tool - T40095- to camshafts (align arms
of bracket as required and tighten knurled nuts).
• Note the different shapes for inlet and exhaust camshaft.
Note
Note the use-by date of the sealant.
– Cut off tube nozzle at front marking (diameter of nozzle ap‐
prox. 1.5 mm).
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Note
The retaining frame is shown without camshafts for illustration
purposes.
– Turn retaining frame upside down.
– Apply the beads of sealant -arrows- onto the clean sealing
surfaces of the retaining frame as illustrated.
• The grooves -arrows- on the sealing surface must be com‐
pletely filled with sealant.
• The beads of sealant must project 1.5 ... 2.0 mm above the
sealing surface.
Note
The sealant beads must not be thicker than specified, otherwise
excess sealant could enter the camshaft bearings.
– Ensure that all roller rocker fingers contact the valve ends and
compensation elements correctly.
172
Rep. gr.15 - Cylinder head, valve gear
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.