GM Service Manual Online
For 1990-2009 cars only

Fastener Tightening Specifications for Buick Riviera 1998

Application

Specification

Metric

English

Convertor Nuts (L47)

24 N·m

18 lb ft

Crossover Pipe Bolts (L47)

30 N·m

22 lb ft

Exhaust Manifold Flange Bolts (L47)

30 N·m

22 lb ft

Front Exhaust Pipe to Manifold Bolt (L67)

25 N·m

18 lb ft

U Bolt Clamp Nuts

40 N·m

30 lb ft