volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Checking valve timing > < Cylinder head
Assembly overview
   
Assembly overview
1 - 20 Nm
2 - High-pressure pump
q   For fuel supply.
q   With fuel pressure regulating valve -N276-.
q   Removing and installing → Chapter
3 - Cable guide
q   Bolt to camshaft housing with 8 Nm torque.
4 - To air filter.
5 - 10 Nm
6 - Hall sender -G40-
q   With O-ring.
q   Renew O-ring if damaged.
7 - 10 Nm + 1/4 turn (90°) further
q   Renew.
q   Tighten from inside outwards.
8 - Camshaft housing
  Caution
The studs (M6x80) must be screwed into cylinder head before installing camshaft housing.
The camshaft housing is guided by the studs, so that the roller rocker fingers do not slip off the supporting elements.
q   Removing and installing → Chapter
q   Remove sealant residue.
q   Carefully clean sealing surfaces. They must be oil and grease free.
q   Coat with D 154 103 A1 before fitting.
q   When installing, fit vertically from above onto studs and dowel pins.
9 - 20 Nm
10 - Lifting eye
11 - Turbocharger
12 - Oil pressure switch -F1-, 25 Nm
q   Checking → Chapter.
q   If seal is leaking, nip open and renew.
13 - Cylinder head gasket
q   Renew.
q   Metal gasket.
q   After renewing, renew entire coolant.
14 - Cylinder head
q   Removing and installing → Chapter
q   Check for distortion → Fig..
q   Sealing surfaces to camshaft housing must be oil and grease free.
q   After renewing, renew entire coolant.
15 - Guide pins
q   Specified torque: 20 Nm
16 - Dowel pin
17 - Support element
q   Do not interchange.
q   With hydraulic valve clearance compensation.
q   Oil contact surface.
18 - Roller rocker finger
q   Check roller bearing for ease of movement.
q   Oil contact surface.
q   When installing, secure to supporting element using securing clip.
19 - Cylinder head bolt
q   Renew.
q   Follow installation instructions and sequence when loosening and tightening → Chapter.
20 - Seal
  Note
Note the different sealing types when removing and installing the camshaft housing → Chapter.
q   Renew.
q   Qty. 4
q   Inserted into cylinder head.
21 - Roller tappet
q   Lightly coat contact surface with engine oil.
22 - O-ring
q   Renew.
q   Moisten with oil before inserting.

   
Checking cylinder head for distortion
Check with 500 mm straight edge -VAS 6075- and feeler gauge.
Max. permissible distortion: 0.05 mm.
  V15-0654

Checking valve timing > < Cylinder head