seat Workshop Repair Guides

SEAT Workshop Service and Repair Manuals

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Toothed belt drive > < Removing and installing cylinder head

Leon Mk1

Checking compression
   
Checking compression
Consult the equivalence table for tools and equipment according to applicability among Seat / VW / Audi / Skoda → Chapter.
Special tools and workshop equipment required
t  Spanner -3122B-, see equivalent → Anchor
t  Extractor -T40039-, see equivalent → Anchor
t  Torque wrench -VAG 1331-, see equivalent → Anchor.
t  Adapter -VAG 1381/5A-, see equivalent → Anchor
t  Compression tester -VAG 1763-, see equivalent → Anchor

Test condition
l  Engine oil temperature at least. 30 ℃
l  Speedometer must be okay.
–  Remove the engine cover → Chapter
–  Remove the ignition coils with output stages → Chapter.
–  Unscrew the spark plugs using the spark plug spanner -3122B-.
–  Check compression pressure with compression tester -VAG 1763- and adapter -VAG 1381/5A-.
  Note
Use of the testing equipment → Instructions.
–  A second mechanic activates the starter motor.
–  Operate starter until pressure reading on tester no longer rises.
Compression values:
   
New
bar		Wear limit
bar		 Difference between cylinders
bar
11,0 - 14,07,03.0 (maximum)

–  Erase event memory of the engine control unit after completing work as faults are stored when connector is removed. → Vehicle diagnostic tester„Guided function“.
   

Toothed belt drive > < Removing and installing cylinder head