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Valve Seat Audi A4 B5

Mechanical ~120 words
  1. Lightly machine seat if seat is rough or seat width is not within specification. See «CYLINDER HEAD»(ref-49282-S24057859992001091300000) table under ENGINE SPECIFICATIONS. Before machining, insert valve into guide. Press valve tightly against valve seat. Lay a straightedge across valve cover gasket surface of cylinder head. Measure distance between valve stem tip and up to bottom of straightedge. This is valve installed height.
  2. Replace valve and/or cylinder head as necessary if valve stem height is less than 1.33" (33.8 mm) on intake valve, or 1.34" (34.1 mm) on exhaust valve. If valve stem height exceeds specification, seat can be machined; however, DO NOT machine enough material away from seat to cause valve stem height to be less than minimum specification.

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