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Note
A plastic sleeve -A- is included with the new valve stem oil seals.
– Fit plastic sleeve -A- onto the valve stem to prevent damage
to the new valve stem oil seal -B-.
– Lightly lubricate sealing lip of valve stem oil seal.
– Slip valve stem oil seal over plastic sleeve.
– Carefully press the valve stem oil seal onto valve guide using
fitting tool -3365- .
– Remove plastic sleeve.
If valve cotters have been removed from assembly cartridge, they
need to be put into insertion device - VAS 5161/18- first.
• Larger diameter of valve cotters faces upwards.
– Install valve spring and valve spring plate.
• The closely spaced spring coils -arrow- face the cylinder head.
– Screw guide plate back onto cylinder head.
– Insert assembly cartridge into guide plate.
– Push pressure fork down and pull knurled screw upwards
while turning to left and right – this will insert the valve cotters.
– Release pressure fork with knurled screw still in pulled posi‐
tion.
– Repeat procedure for each valve.
Assembling
Installation is carried out in the reverse order; note the following:
– Ensure that all roller rocker fingers contact the ends of the
valve stems correctly and are clipped onto their respective hy‐
draulic compensation elements.
– Install camshafts
.
Audi A8 2003 ➤
10-cylinder direct petrol injection engine (5.2 ltr. 4-valve), mechanics - Edition 10.2013
152
Rep. gr.15 - Cylinder head, valve gear
