Audi AMB Service Manual page 128

ENGINE 1.8 Liter 4-Cyl. 5V Turbo Engine Mechanical, Engine Code(s): AMB
Tightening torques
Component
Spark plugs in cylinder head
VALVE GEAR, SERVICING
Valve gear, servicing
NOTE:
Cylinder heads which have cracks between valve seats or between valve

seat inserts and the spark plug thread can be used further without
reducing service life, provided cracks do not exceed a max. of 0.3 mm in
width, or when no more than first 4 turns of spark plug threads are
cracked.
After installing camshafts, engine must not be started for approx. 30

minutes. Hydraulic valve compensation elements have to settle (otherwise
valves will strike pistons).
After working on valve gear, turn engine carefully at least 2 rotations to

ensure that none of the valves make contact when starter is operated.
Always replace gaskets and sealing rings.

2005 Audi A4 Quattro
1:01:03 AM Page 116
Nm
30