skoda Workshop Repair Guides

Skoda Workshop Service and Repair Manuals

Repairing Valve Gear > < Removing and installing cylinder head|Install
Testing the compression
Testing the compression
Test condition
l  Engine oil temperature at least 30 °C.
Special tools and workshop equipment required
t  Compression gauge, e.g. -V.A.G 1763 -
t  Adapter, e.g. -V.A.G 1381/12 -
t  Flexible-head wrench for glow plugs
Test sequence
   
–  Lift the engine cover at the sides -arrows A- and pull out towards the front -arrow B-.
–  Disconnect central plug connection for unit injector.
–  Remove all glow plugs with the flexible-head wrench for glow plugs.
  S10-0374
–  Screw in adapter instead of the glow plugs.
–  Check compression pressure with the compression gauge.
  Note
Use of tester → Operating Instructions.
–  Operate starter until the tester no longer indicates a pressure rise.
Compression readings:
  N15-0227
New engineWear limitPressure difference between individual cylinders
2.5 … 3.1 MPa1.9 MPamax. 0.5 MPa
25…31 bar19 barmax. 5 bar

–  Install glow plugs and tighten to 15 Nm.
–  Connect central plug connection for unit injectors and edge connector for glow plugs.
–  Interrogate fault memory and erase → 1.9/96 TDI Engine, Fuel Injection; Rep. Gr.01
   

Repairing Valve Gear > < Removing and installing cylinder head|Install