Genuine 1994 Audi 90 Piston

1994 Audi 90 Piston Parts and Q&A

• Q: What checks should be performed on the pistons and bores for signs of damage and wear on 1994 Audi 90?

  A: Examine pistons and bores for damage and wear. Measure piston diameter and ensure wear is within limits. Check piston ring endgap and bore wear. Use a dial gauge for bore measurements. If any bore is oversize, rebore all and fit new pistons. Check piston ring groove gaps.