seat Workshop Repair Guides

SEAT Workshop Service and Repair Manuals

Servicing valve gear > < Pistons and conrods
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 - Wiring guide
q   Bolt to camshaft housing with 8 Nm torque.
4 - Goes to the air filter
5 - 10 Nm
6 - Hall sender -G40-
q   With O-ring
q   Renew O-ring if damaged.
7 - Stud, 6 Nm
8 - 10 Nm +1/4 turn further (90º)
q   Replace
q   Tighten from centre outwards
9 - Camshaft housing
  Note
The strainer for oil circuit must be installed in cylinder head.
q   Removing and installing → Chapter.
q   Remove old sealant residues
q   Carefully clean sealing surfaces. They must be oil and grease free.
q   Before installing, coat with sealant -D 154 103 A1-.
q   When installing, fit vertically from above onto studs and dowel pins.
10 - 20 Nm
11 - Attachment rings
12 - Turbocharger
13 - Oil pressure switch -F1-, 25 Nm
q   check → Chapter
q   In case of leakage, cut out and replace sealing ring
14 - Cylinder head gasket
q   Replace
q   Metal gasket
q   If renewed, change coolant in entire system
15 - Cylinder head
  Note
The strainer for oil circuit must be installed in cylinder head.
q   Removing and installing → Chapter.
q   Checking for distortion → Fig.
q   Sealing surfaces to camshaft housing must be oil and grease free.
q   If renewed, change coolant in entire system
16 - Guide pin
q   Tightening torque: 20 Nm
17 - Dowel pin
18 - ATF strainer
q   Inserted into cylinder head.
q   Replace
19 - Supporting element
q   Do not interchange
q   With hydraulic valve clearance compensation.
q   Lubricate contact surface
20 - Roller rocker arms
q   Check roller bearing for ease of movement.
q   Lubricate contact surface
q   ?When installing, secure to support element using securing clip.
21 - Seal
  Note
Note the different sealing types when removing and installing the camshaft housing → Chapter.
q   Replace
q   4 units
q   Inserted into cylinder head.
22 - Cylinder head bolt
q   Replace
q   Follow installation instructions and sequence when loosening and tightening → Chapter.
23 - Roller tappet
q   Lightly coat contact surface with engine oil.
24 - O ring
q   Replace
q   Moisten with oil before inserting.

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

Servicing valve gear > < Pistons and conrods