Audi A8 2003 Workshop Manual page 166

Audi A8 2003 ➤
8-cylinder TDI engine (4.2 ltr. 4-valve common rail), mechanics - Edition 12.2013
Installation is carried out in the reverse order; note the following:
– Before installing cylinder head, set crankshaft and camshafts
to TDC:
• Locking pin - 3242- must be screwed in with engine at TDC
position.
• The camshafts on both cylinder heads must be locked with
adjustment pins - T40060- .
– Note identification markings on cylinder head gasket.
1 - Holes
2 - Part No.
Note
If the cylinder head gasket or cylinder head have been re‐
♦
placed, select the new cylinder head gasket according to the
number of holes on the old gasket.
If parts of the crankshaft drive have been renewed, the new
♦
cylinder head gasket must be selected by measuring the pis‐
ton projection at TDC
The gaskets for the left and right cylinder heads have different
♦
shapes and cannot be interchanged.
– Fit cylinder head gasket.
• Pay attention to dowel sleeves -arrows- in cylinder block.
• Check installation position of cylinder head gasket: the word
"oben" (top) or the Part No. should face towards the cylinder
head.
– Fit cylinder head.
– Screw in new cylinder head bolts until hand-tight.
160
Rep. gr.15 - Cylinder head, valve gear
⇒ page 103 .
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