Volkswagen Workshop Service and Repair Manuals

Piston Ring: Specifications

DIMENSIONS 

Piston Ring End Gap:

New:

1st Compression Ring .................................................................................................................................  0.20-0.40 mm (0.0078-0.0157 inch). 
2nd Compression Ring ................................................................................................................................  0.20-0.40 mm (0.0078-0.0157 inch). 
Oil Scraper Ring ..........................................................................................................................................  0.25-0.50 mm (0.0098-0.0197 inch). 

Wear Limit:

1st Compression Ring ......................................................................................................................................................  1.00 mm (0.0390 inch). 
2nd Compression Ring .....................................................................................................................................................  1.00 mm (0.0390 inch). 
Oil Scraper Ring ..............................................................................................................................................................  1.00 mm (0.0390 inch). 

Ring To Groove Clearance:

New:

1st Compression Ring ........................................................................................................................................  0.02-0.05 (0.0008-0.0020 inch). 
2nd Compression Ring .......................................................................................................................................  0.02-0.05 (0.0008-0.0020 inch). 
Oil Scraper Ring .................................................................................................................................................  0.02-0.05 (0.0008-0.0020 inch). 

Wear Limit:

1st Compression Ring .............................................................................................................................................................  0.15 (0.0059 inch). 
2nd Compression Ring ............................................................................................................................................................  0.15 (0.0059 inch). 
Oil Scraper Ring .....................................................................................................................................................................  0.15 (0.0059 inch).