seat Workshop Repair Guides

SEAT Workshop Service and Repair Manuals

Removing, installing and tensioning toothed belt > < Removing and installing drive plate
4-cyl. injection engine (2 valve without intermediate shaft), Mechanics
Removing and installing cylinder head
Removing and installing cylinder head

Notes:

  • ◆ When installing an exchange cylinder head with fitted camshaft, the contact surfaces between the bucket tappets and the cam must be oiled before installing the cylinder head cover.
  • ◆ The plastic packing pieces for protecting the open valves must not be removed until immediately before fitting cylinder head.
  • ◆ If the cylinder head is replaced, all the coolant in the system must also be renewed.
  • ◆ Removing and installing intake manifold:

=> Repair group 24; Servicing injection system; Removing and installing parts of injection system

Checking compression pressures

 
N15-0396
  • Cap
  • Gasket
    • ◆ Renew if damaged
  • 10 Nm
  • To crankcase breather valve
  • 10 Nm
  • Bracket
  • Cylinder head cover
  • Cylinder head cover gasket
    • ◆ Renew if damaged
    • ◆ Before fitting gasket, coat transition between bearing cap/cylinder head with "D 454 300 A2"
  • Oil deflector
 
N15-0396
  • Cylinder head bolt
    • ◆ Renew
    • ◆ Removing and installing Polydrive cylinder head bolt with 3452 or T10070
    • ◆ Observe sequence when loosening and tightening => Page 15-15, Removing and installing cylinder head
  • Sealing plug - 15 Nm
    • ◆ With seal
    • ◆ Renew
  • Oil seal
    • ◆ Renew
  • Connection
  • Lifting eye
  • 20 Nm
 
N15-0396
  • Cylinder head gasket
    • ◆ Renew
    • ◆ After replacing renew the complete coolant
    • ◆ Note installation position:
      Identification: Part No. must be readable from inlet side
  • 15 Nm
  • Rear toothed belt guard
  • Toothed belt
    • ◆ Mark D.O.R. before removing
    • ◆ Check for wear
    • ◆ Do not kink
    • ◆ Removing, installing and tensioning
      => Page 15-6
  • Cylinder head
    • ◆ Check for distortion => Fig. 1
    • ◆ Reworking sealing surface
      => Page15-30, Fig. 1
    • ◆ Removing and installing
      => Page 15-15
    • ◆ After replacing renew the complete coolant
 
V15-0707

→ Fig. 1    Checking cylinder head for distortion

Max. permissible distortion: 0.1 mm

Removing, installing and tensioning toothed belt > < Removing and installing drive plate