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Home >> Audi >> 1982 >> 4000 Base, 2D Sedan >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> 4000 4-Cylinder >> Pistons, Pins & Rings >> Fitting Rings

Fitting Rings

  1. Place piston rings squarely into cylinder bore about 5/8" from bottom of bore. Use a feeler gauge to measure ring end gap.
  2. With rings installed on piston, use a feeler gauge to measure ring side clearance. Take measurement around entire circumference of piston, between top of ring and ring land.
  3. Install rings on piston with "TOP" mark facing upward. Recessed edge on outside of center ring must face piston pin. Space ring end gaps 120° apart.
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