seat Workshop Repair Guides

SEAT Workshop Service and Repair Manuals

Valve mechanism: repairs > < Valve -1- for variable distribution N205 : checking
Fitting
Fitting
  Note
t  No oil or coolant must be allowed to remain in the blind holes for the cylinder head bolts in the cylinder block.
t  Do not remove the new cylinder head gasket from its packing until immediately before its installation.
t  Handle new gasket extremely carefully. If damaged, leaks may result.
–  Place a clean cloth in cylinders so that no dirt or particles can get in between cylinder wall and piston.
–  Also prevent dirt and particles from getting into the coolant.
–  Carefully clean cylinder head and cylinder block sealing surfaces. Ensure no long grooves or scratches are produced (if using sandpaper. it must be at least 100 grain).
–  Carefully remove any abrasive metal particles and then the cloths.
   
–  Set crankshaft to cylinder 1 TDC.
–  Turn crankshaft back slightly.
  A13-0076
–  Loosen bolts -1- and -2- in the turbocharger support, approx. 2 turns, to avoid stress when installing the cylinder head.
–  Fit new cylinder head gasket. The inscription (part no.) must be legible.
  A21-0024
–  Pay attention to centring pins in cylinder block -arrows-.
–  Fit the cylinder head.
  A15-0135
–  Tighten cylinder head bolts in tightening sequence as follows:
–  First tighten all bolts to 40 Nm.
–  Then retighten all bolts 1/4 turn (90°) further using a rigid wrench.
–  Then retighten all bolts again 1/4 turn (90°).
  Note
It is not necessary to retighten cylinder head bolts after repairs.
–  Replace the turbocharger/exhaust manifold gasket, and firmly screw the turbocharger, together with its mounting, to the cylinder block.
Installing timing belt and adjusting valve timing → Chapter.
Filling with new coolant → Chapter.
Continue installation following reverse order for removing.
  A15-0023

Valve mechanism: repairs > < Valve -1- for variable distribution N205 : checking