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Home >> Volkswagen >> 2001 >> Jetta GL, 2.0 B >> Repair and Diagnosis >> External Pages >> Different car >> Section 35 (1.9L TDI Engine Mechanical - AAZ, 1Z, AHU (A3 Platform)) >> Engine - Cylinder Head, VALVETRAIN >> Valve train, servicing >> Valve seats, refacing >> Special tools, testers and auxiliary items

Special tools, testers and auxiliary items

WARNING: This page is about a different car, the 1999 Volkswagen Jetta, 1998 Volkswagen Jetta, 1997 Volkswagen Jetta, 1996 Volkswagen Passat, and 1996 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
  • When refacing valve seats, remove only enough material to produce the correct seat contact pattern. The maximum permissible refacing dimension must be calculated before refacing.
  • If the maximum refacing dimension is exceeded, the hydraulic lifters will not function properly and the cylinder head must be replaced.
NOTE: When repairing engines with leaking valves, it is not always sufficient to just replace valves and/or reface valve seats. It is also necessary to check valve guides for wear. This is particularly important on high mileage engines.
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