Saab Workshop Service and Repair Manuals

Piston Ring: Specifications

Dimensional Specifications

Piston Rings:

Upper compression ring:

Thickness ...................................................................................................................................................................................  1.475 - 1.490 mm
Side clearance in groove ............................................................................................................................................................  0.035 - 0.080 mm
Working gap in cylinder ............................................................................................................................................................  0.300 - 0.500 mm

Lower compression ring:

Thickness ...................................................................................................................................................................................  1.475 - 1.490 mm
Side clearance in groove ............................................................................................................................................................  0.040 - 0.075 mm
Working gap in cylinder ............................................................................................................................................................  0.300 - 0.500 mm

Oil scraper ring:   

Thickness ...............................................................................................................................................................................................  2.500 mm
Working gap in cylinder ................................................................................................................................................................  0.75 - 1.00 mm