Tightening torques
VALVE GEAR, SERVICING
Valve gear, servicing
Component Nm
Spark plugs in cylinder head 30
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
ENGINE 1.8 Liter 4-Cyl. 5V Turbo Engine Mechanical, Engine Code(s): AMB
1:01:03 AM Page 116
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