Buick Workshop Service and Repair Manuals

Piston Ring: Specifications

Piston Rings

Piston Ring End Gap

First Compression Ring ............................................................................................................................................  0.15-0.3 mm (0.0059-0.0118 in)
Second Compression Ring ......................................................................................................................................  0.36-0.51 mm (0.0142-0.0201 in)
Oil Control Ring .................................................................................................................................................  0.250-0.760 mm (0.0098-0.0299 in)

Piston Ring to Groove Clearance

First Compression Ring ......................................................................................................................................  0.043-0.093 mm (0.0017-0.0037 in)
Second Compression Ring ..................................................................................................................................  0.043-0.093 mm (0.0017-0.0037 in)
Oil Control Ring .................................................................................................................................................  0.059-0.215 mm (0.0023-0.0085 in)