Volkswagen Phaeton 2003, Workshop Manual

Page: 82 / 190

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2 Valve gear
Assembly overview - valve gear ⇒ page 76
Removing and installing camshaft control valves ⇒ page 79
Removing and installing camshafts ⇒ page 82 .
Renewing valve stem seals ⇒ page 87 .
Checking valve guides ⇒ page 91 .
2.1 Assembly overview - valve gear
1 - 5 Nm +
1
/8 turn (45°) further
2 - Exhaust camshaft bearing
cap
❑ Installation position
⇒ page 85
❑ Installation sequence
⇒ page 82 Removing
and installing camshaft.
3 - Seal
❑ Renew if leaking.
❑ When installing valve
timing housing, lightly
lubricate contact surfa‐
ces of seal.
❑ When replacing seals,
do not spread too wide‐
ly.
4 - Exhaust camshaft
❑ Check radial clearance
with Plastigage; wear
limit: 0.1 mm
❑ Runout: max. 0.01 mm
❑ Checking axial clear‐
ance ⇒ page 90 .
❑ Identification and valve
timing ⇒ page 91
❑ Removing and installing
⇒ page 82
5 - Valve timing housing
❑ Markings on valve tim‐
ing housing ⇒ page 58
❑ Lightly lubricate contact
surfaces of oil seals be‐
fore installing.
❑ Dismantling and assembling ⇒ page 78
❑ Before installing valve timing housing, check strainer for soiling ⇒ page 78
❑ Removing and installing ⇒ page 82 Removing and installing camshafts.
❑ Removing and installing camshaft control valves ⇒ page 79
6 - Camshaft timing chain
❑ Before removing, mark direction of rotation (installation position) ⇒ page 22 .
❑ Installing ⇒ page 64 .
Phaeton 2003 ➤
6-cylinder injection engine - Edition 02.2014
76
Rep. gr.15 - Cylinder head, valve gear