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Home >> Buick >> 2009 >> Allure CX >> Repair and Diagnosis >> Engine Mechanical >> Engine Exhaust System >> Specifications >> Fastener Tightening Specifications

Fastener Tightening Specifications

Application Specification
Metric English
Catalytic Converter Bolt 45 N.m 33 lb ft
Catalytic Converter Nut 60 N.m 44 lb ft
Catalytic Converter Pipe Stud Nut 35 N.m 26 lb ft
EGR Adapter Pipe to Exhaust Manifold Bolt 29 N.m 21 lb ft
Engine Lift Bracket Bolt/Nut 30 N.m 22 lb ft
Exhaust Crossover Pipe Bolt/Nut 25 N.m 18 lb ft
Exhaust Crossover Pipe Bolt/Stud 20 N.m 15 lb ft
Exhaust Crossover Pipe Heat Shield Bolt 10 N.m 89 lb in
Exhaust Crossover Pipe Heat Shield Nut 20 N.m 15 lb ft
Exhaust Manifold Bolt/Nut (L26, LY7) 30 N.m 22 lb ft
Exhaust Manifold Bolt (LS4)
  • 1st Pass
15 N.m 11 lb ft
  • 2nd Pass
20 N.m 15 lb ft
Exhaust Manifold Heat Shield Bolt (L26, LY7) 10 N.m 89 lb in
Exhaust Manifold Heat Shield Bolt (LS4) 9 N.m 80 lb in
Exhaust Manifold Heat Shield Nut 20 N.m 15 lb ft
Exhaust Manifold Nut 16 N.m 12 lb ft
Exhaust Manifold Pipe Stud Nut 35 N.m 26 lb ft
Exhaust Pipe Rear Hanger Bolt 25 N.m 18 lb ft
Fuel Injector Sight Shield Bracket Nut 30 N.m 22 lb ft
Heater Pipe Retainer Bolt 16 N.m 12 lb ft
Rear Bumper Impact Bar Bolt 25 N.m 18 lb ft