audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Piston Ring, Engine|Specifications|Page 2903 > < Piston Ring, Engine|Specifications
Page 1
background image

Piston Ring: Testing and Inspection

INSPECTION

End Gap
-

Insert ring from top and slide down until approx. 15 mm (0.59 inch) from lower edge of cylinder.

-

Specifications:

Ring 1:

End Gap: 0.35 - 0.50 mm (0.014 - 0.020 inch).
Wear Limit: 1.0 mm (0.039 1nch).

Ring 2:

End Gap: 0.50 - 0.70 mm (0.020 - 0.028 inch).
Wear Limit: 1.4 mm (0.055 1nch).

Ring 3:

End Gap: 0.25 - 0.50 mm (0.010 - 0.020 inch).
Wear Limit: 0.8 mm (0.032 1nch).

Side Clearance
-

Before checking, clean ring groove.

-

Check piston ring clearance in groove.

New: 0.02-0.08 mm (0.001-0.003 inch).
Wear limit: 0.10 mm (0.004 inch).

Piston Ring, Engine|Specifications|Page 2903 > < Piston Ring, Engine|Specifications