seat Workshop Repair Guides

SEAT Workshop Service and Repair Manuals

Valve stem seals: renew > < Valve control unit: repair
Remove
Remove
–  Remove the camshaft → Chapter.
–  Remove the hydraulic tappets (do not interchange them) and set them with the sliding surface pointing down.
–  Unscrew the spark plugs.
–  Set the piston from the appropriate cylinder in the “lower idling point”.
   
–  Use the assembly device -T20034-.
–  Screw pressure hose -T20033- into the plug threads.
–  Adjust the hose to a minimum air pressure of 6 bar.
–  Remove the valve springs with assembly device -T20034- and pressure tool -T20034- Ø35.
  Note!
If necessary, lightly tap the assembly device with a hammer to remove jammed half cones.
  E15-0024
–  Remove the valve stem seals with tool -T20058-.
  E15-0063

Valve stem seals: renew > < Valve control unit: repair