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Home >> Volkswagen >> 2001 >> Jetta GL, 2.0 S, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 34 (2.8L - Engine Mechanical - AFP (A4 Platform)) >> 15 - Engine - Cylinder head, Valvetrain >> Valve gear, repairing >> Valve seats, reworking >> Work sequence

Work sequence

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NOTE:
  • When repairing engines with leaking valves it is not sufficient to just work on or replace valve seats and valves. With longtime engines in particular it is necessary to check valve guides for wear.
  • Only rework valve seats until a correct contact pattern is achieved. Before reworking valve seats calculate the allowable reworking dimension. If this dimension is exceeded, correct functioning of the hydraulic valve clearance balancing cannot be guaranteed and the cylinder head must be replaced.
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