Fastener Tightening Specifications. Buick Century 2002

For 1990-2009 cars only

Makes 🢒 Buick 🢒 2002 🢒 Century 🢒 Preface 🢒 Cautions and Notices 🢒 Fastener Tightening Specifications

Application	Specification
Application	Metric	English
Accelerator Control Cable Bracket Bolt/Nut	13 N·m	115 lb in
Air Injection Check Valve - with NC1 California Emissions	20 N·m	15 lb ft
Air Injection Check Valve Front Bracket Bolt and Nut - with NC1 California Emissions	25 N·m	18 lb ft
Air Injection Check Valve Nut - with NC1 California Emissions	10 N·m	89 lb in
Air Injection Check Valve Pipe Adapter - with NC1 California Emissions	30 N·m	22 lb ft
Air Injection Check Valve Rear Bracket Nuts - with NC1 California Emissions	25 N·m	18 lb ft
Air Injection Solenoid Bolt - with NC1 California Emissions	10 N·m	89 lb in
Camshaft Position Sensor Bolt	10 N·m	89 lb in
Camshaft Sprocket Bolt	140 N·m	103 lb ft
Camshaft Thrust Plate Screw	10 N·m	89 lb in
Connecting Rod Bearing Cap Nut
First Pass	20 N·m	15 lb ft
Final Pass	75 degrees
Coolant Drain Plug	19 N·m	14 lb ft
Coolant Temperature Sensor	23 N·m	17 lb ft
Crankshaft Balancer Bolt
First Pass	70 N·m	52 lb ft
Final Pass	72 degrees
Crankshaft Main Bearing Cap Bolt/Stud
First Pass	50 N·m	37 lb ft
Final Pass	77 degrees
Crankshaft Oil Deflector Nut	25 N·m	18 lb ft
Crankshaft Position Sensor Bolt -- Front Cover	10 N·m	89 lb in
Crankshaft Position Sensor Stud -- Side of Engine Block	11 N·m	98 lb in
Crankshaft Position Sensor Wiring Bracket Bolt	40 N·m	30 lb ft
Cylinder Head Bolt
First Pass	60 N·m	44 lb ft
Final Pass	95 degrees
Drive Belt Shield Bolt	10 N·m	89 lb in
Drive Belt Tensioner Bolt	50 N·m	37 lb ft
EGR Valve Adapter Pipe to Exhaust Manifold Nut	25 N·m	18 lb ft
EGR Valve Pipe to EGR Valve Bolt	25 N·m	18 lb ft
EGR Valve to Upper Intake Manifold Bolt	30 N·m	22 lb ft
Engine Front Cover Bolt -- Large	55 N·m	41 lb ft
Engine Front Cover Bolt -- Medium	55 N·m	41 lb ft
Engine Front Cover Bolt -- Small	27 N·m	20 lb ft
Engine Mount Bracket Bolt	58 N·m	43 lb ft
Engine Mount Lower Nut	43 N·m	32 lb ft
Engine Mount Strut and Lift Bracket Bolt -- Engine Left Rear	70 N·m	52 lb ft
Engine Mount Strut Bolt/Nut	48 N·m	35 lb ft
Engine Mount Strut Bracket Bolt -- Upper Radiator Support	28 N·m	21 lb ft
Engine Mount Strut and Generator Bracket Bolt	50 N·m	37 lb ft
Engine Mount Upper Nut	47 N·m	35 lb ft
Engine Oil Pressure Indicator Switch	16 N·m	12 lb ft
Engine Wiring Harness Bracket Bolt	13 N·m	115 lb in
Exhaust Manifold Nut	16 N·m	12 lb ft
Exhaust Manifold Stud	18 N·m	13 lb ft
Flywheel Bolt	71 N·m	52 lb ft
Fuel Feed and Return Pipe Clip Nut	25 N·m	18 lb ft
Fuel Feed and Return Pipe Clip Stud	50 N·m	37 lb ft
Fuel Feed Pipe to Fuel Injector Rail Nut	17 N·m	13 lb ft
Fuel Injector Rail Bolt	10 N·m	89 lb in
Fuel Pipe Bracket Bolt/Stud	50 N·m	37 lb ft
Fuel Pipe Clip Bolt	8 N·m	71 lb in
Fuel Return Pipe to Fuel Injector Rail Nut	17 N·m	13 lb ft
Heated Oxygen Sensor	42 N·m	31 lb ft
Heater Inlet Pipe Nut	25 N·m	18 lb ft
Heater Inlet Pipe Stud	50 N·m	37 lb ft
Ignition Coil Bracket Bolt/Nut/Stud	25 N·m	18 lb ft
Intake Manifold Coolant Pipe Bolt	10 N·m	89 lb in
Knock Sensor	19 N·m	14 lb ft
Lower Intake Manifold Bolt - Center
First Pass	7 N·m	62 lb in
Final Pass	13 N·m	115 lb in
Lower Intake Manifold Bolt - Corner
First Pass	13 N·m	115 lb in
Final Pass	25 N·m	18 lb ft
MAP Sensor Bolt	5 N·m	44 lb in
Oil Cooler Connector	50 N·m	37 lb ft
Oil Cooler Hose Fitting	19 N·m	14 lb ft
Oil Cooler Pipe Bracket Bolt	25 N·m	18 lb ft
Oil Filter	13 N·m	115 lb in
Oil Filter Bypass Hole Plug	19 N·m	14 lb ft
Oil Filter Fitting	39 N·m	29 lb ft
Oil Gallery Plug -- 1/4 inch	19 N·m	14 lb ft
Oil Gallery Plug -- 3/8 inch	33 N·m	24 lb ft
Oil Level Indicator Tube Bolt	25 N·m	18 lb ft
Oil Level Sensor Bolt	10 N·m	89 lb in
Oil Pan Bolt	25 N·m	18 lb ft
Oil Pan Drain Plug	25 N·m	18 lb ft
Oil Pan Side Bolt	50 N·m	37 lb ft
Oil Pump Cover Bolt	10 N·m	89 lb in
Oil Pump Drive Clamp Bolt	36 N·m	27 lb ft
Oil Pump Mounting Bolt	41 N·m	30 lb ft
Spark Plug
Spark Plug - Initial Installation	20 N·m	15 lb ft
Spark Plug - Reinstallation	15 N·m	11 lb ft
Thermostat Bypass Pipe to Engine Front Cover Bolt	12 N·m	106 lb in
Thermostat Bypass Pipe to Throttle Body Nut	25 N·m	18 lb ft
Throttle Body Bolt/Stud	25 N·m	18 lb ft
Timing Chain Dampener Bolt	21 N·m	15 lb ft
Upper Intake Manifold Bolt/Stud	25 N·m	18 lb ft
Valve Lifter Guide Bolt	10 N·m	89 lb in
Valve Rocker Arm Bolt
First Pass	19 N·m	14 lb ft
Final Pass	30 degrees
Valve Rocker Arm Cover Bolt	10 N·m	89 lb in
Water Outlet Bolt	25 N·m	18 lb ft
Water Pump Bolt	10 N·m	89 lb in
Water Pump Pulley Bolt	25 N·m	18 lb ft

Application	Specifications
Application	Metric	English
Camshaft Position Sensor Bolt	10 N·m	89 lb in
Camshaft Sprocket Bolt	140 N·m	103 lb ft
Camshaft Thrust Plate Bolt	10 N·m	89 lb in
Connecting Rod Bearing Bolt
First Pass	25 N·m	18 lb ft
Final Pass	100 degrees
Coolant Drain Plug	19 N·m	14 lb ft
Coolant Temperature Sensor	23 N·m	17 lb ft
Crankshaft Balancer Bolt	103 N·m	76 lb ft
Crankshaft Oil Deflector Nut	25 N·m	18 lb ft
Crankshaft Position Sensor Bolt - Front Cover	10 N·m	89 lb in
Crankshaft Position Sensor Shield Bolt	11 N·m	98 lb in
Cylinder Head Bolt
First Pass	60 N·m	44 lb ft
Final Pass	95 degrees
Drive Belt Idler Pulley Bolt	50 N·m	37 lb ft
Drive Belt Shield Bolt	10 N·m	89 lb in
Drive Belt Tensioner Bolt	50 N·m	37 lb ft
EGR Valve Adapter Pipe to Exhaust Manifold Nut	25 N·m	18 lb ft
EGR Valve to EGR Valve Pipe Bolt	30 N·m	22 lb ft
Engine Flywheel Bolt	71 N·m	52 lb ft
Engine Front Cover Bolt - Large	55 N·m	41 lb ft
Engine Front Cover Bolt - Small	27 N·m	20 lb ft
Engine Mount Bracket Bolt	58 N·m	43 lb ft
Engine Mount Lower Nut	43 N·m	32 lb ft
Engine Mount Strut and Lift Bracket Bolt - Engine Left Rear	70 N·m	52 lb ft
Engine Mount Strut Bolt/Nut	48 N·m	35 lb ft
Engine Mount Strut Bracket Bolt - Upper Radiator Support	28 N·m	21 lb ft
Engine Mount Strut Bracket Bolt - Vehicle Right Side	50 N·m	37 lb ft
Engine Mount Upper Nut	47 N·m	35 lb ft
Engine Oil Pressure Indicator Switch	16 N·m	12 lb ft
Engine Wiring Harness Bracket Bolt	13 N·m	115 lb in
Fuel Line Bracket Bolt/Stud	20 N·m	15 lb ft
Fuel Pipe Clip Bolt	8 N·m	71 lb in
Intake Manifold Coolant Pipe Bolt	10 N·m	89 lb in
Knock Sensor	19 N·m	14 lb ft
Lower Intake Manifold Bolt
First Pass	7 N·m	62 lb in
Final Pass	13 N·m	115 lb in
MAP Sensor Bolt	5 N·m	44 lb in
MAP Sensor Bracket Bolt	25 N·m	18 lb ft
Oil Filter Bypass Hole Plug	19 N·m	14 lb ft
Oil Filter Fitting	39 N·m	29 lb ft
Oil Level Indicator Tube Bolt	25 N·m	18 lb ft
Oil Level Sensor Bolt	10 N·m	89 lb in
Oil Pan Bolt	25 N·m	18 lb ft
Oil Pan Drain Plug	25 N·m	18 lb ft
Oil Pan Side Bolt	50 N·m	37 lb ft
Oil Pump Drive Clamp Bolt	36 N·m	27 lb ft
Oil Pump Mounting Bolt	41 N·m	30 lb ft
Timing Chain Dampener Bolt	21 N·m	15 lb ft
Transmission to Engine Bolts/Stud	75 N·m	55 lb ft
Upper Intake Manifold Bolt/Stud	25 N·m	18 lb ft
Valve Lifter Guide Bolt	10 N·m	89 lb in
Valve Rocker Arm Bolt
First Pass	19 N·m	14 lb ft
Final Pass	30 degrees
Valve Rocker Arm Cover Bolt	10 N·m	89 lb in
Water Outlet Bolt	25 N·m	18 lb ft
Water Pump Bolt	10 N·m	89 lb in
Water Pump Pulley Bolt	25 N·m	18 lb ft