seat Workshop Repair Guides

SEAT Workshop Service and Repair Manuals

Valve gear: Repairs > < Sealing flange and flywheel: Installing and removing:
assembly overview
assembly overview
t  Check the cylinder head for deformation → Fig.
t  Cylinder head identification → Fig.
   
1 - Upper protection element for the notched belt
2 - Notched belt
q   Mark direction of rotation before removing
q   check wear
q   Do not bend the belt
q   removing, installing and tensioning → Chapter
3 - 10 Nm
q   replace
4 - 25 Nm
q   3x
5 - 100 Nm
6 - Cogwheel for timing belt
7 - Hub
q   With generator wheel
q   Use retention tool -T10051- to loosen and tighten
q   For removal use the extraction tool -T10052A-
q   removing and fitting → Chapter
8 - Rear notched belt guard
9 - Filler cap
q   If this is damaged, replace it
10 - Hall sender -G40-
q   For the position of the crankshaft
q   For removing, remove the cap position → Item from the rear part of the notched belt protection
11 - Cylinder head bolt
q   Respect the loosening and tightening sequence → Chapter
q   Before fitting, fit the washers to the cylinder head → Item
12 - Cylinder head cover:
q   Before fitting, clean thoroughly the seal surface of the cylinder head using a clean cloth
13 - Pressure limiting valve
q   For engine block ventilation
14 - To turbocharger
15 - Filler cap
q   Replace gasket if it shows signs of damage.
16 - Seal collaret
q   If this is damaged, replace it
17 - 10 Nm
q   13 pieces
q   Follow the correct tightening order → Chapter
18 - Cylinder head cover gasket
q   If this is damaged, replace it
19 - 20 Nm
20 - Attachment rings
21 - Injector-pump:
q   removing and fitting → Chapter
22 - 10 Nm
23 - Central connection
q   for the injector pump
24 - of the brake servo
25 - Tandem pump:
q   For fuel feed and low pressure
q   check → Chapter
q   removing and fitting → Chapter
26 - Intake hose
q   From the fuel filter
q   White or white mark
q   Check for secure seating.
q   Immobilise with spring clips
27 - Return hose
q   To the fuel filter
q   Blue or with blue marking
q   Check for secure seating.
q   Immobilise with spring clips
28 - Seal
q   replace
29 - 20 Nm
30 - Cylinder head
q   removing and fitting → Chapter
q   Renew coolant after replacing cylinder head gasket
31 - Cylinder head gasket
q   replace
q   Note the identification
q   Renew coolant after replacing cylinder head gasket
32 - Glow plug, -15 Nm
q   check → Chapter
33 - Tensioning roller
34 - 20 Nm + 1/8 turn (45°) further
q   To avoid significant damage to the engine apply correct tightening torques

   
Checking cylinder head for distortion
Special tools and workshop equipment required
t  Auxiliary ruler
t  Calibre
Maximum deformation: 0.1 mm
  Note
Diesel cylinder heads are not to be re-worked.
  A15-0287
Cylinder head identification
t  Part number = (-arrow 1-)
t  Handling code = (-arrow 2-) do not take into account
t  Holes = (-arrow 3-)
  Note
Depending on the measure of piston protrusion, different thickness of gasket are fitted. When replacing the gasket, replace by a gasket of the same identification.
  A15-0105

Valve gear: Repairs > < Sealing flange and flywheel: Installing and removing: