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Valve gear > < Removing and installing the cylinder head

Fabia Mk2

Testing the compression
Testing the compression
Special tools and workshop equipment required
t  Compression tester, e.g. -V.A.G 1763-
Test condition
Oil temperature at least 30 °C
Test sequence
–  Remove cover for camshaft housing.
–  Remove the ignition coils and spark plugs → Chapter.
   
–  Take off the cover in front of the fuse carrier below the dash panel and take the fuse for the voltage supply of the injection valves out of the fuse carrier in the dash panel → Current flow diagrams, Electrical fault finding and Fitting locations.
–  Check compression pressure using the compression tester.
  Note
Use of tester → Operating Instructions.
–  Operate starter until the tester no longer indicates a pressure rise.
Compression readings
  S20-0290
New engineWear limitDifference
between cylinders
1 - 1.5 MPa
(10 - 15 bar)		0,7 MPa
(7 bar)		0.3 MPa
(3 bar)

–  Screw in the spark plug with spark plug wrench and then tighten fully to 30 Nm.
Further installation occurs in reverse order.
–  Interrogate fault memory, rectify any faults existing and erase the fault memory → Vehicle diagnostic tester.
   

Valve gear > < Removing and installing the cylinder head