Torque Spec Database



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Engine Torque Specifications



Torque Specifications for GM 3.1L-191ci-V6



Bell Housing Cover  To  Bell Housing
5 Ft-Lbs
60 In-Lbs
6.78 N-m
Years: All
Note: 3100 - Torque Converter Cover Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Bracket/Stay  To  Cylinder Head
52 Ft-Lbs
624 In-Lbs
70.5 N-m
Years: All
Note: 3100 - Left Strut Mount to Cylinder Head Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Bracket/Stay  To  Engine Block
37 Ft-Lbs
444 In-Lbs
50.17 N-m
Years: All
Note: 3100 - A/C Compressor Mounting Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Bracket/Stay  To  Engine Block
37 Ft-Lbs
444 In-Lbs
50.17 N-m
Years: All
Note: 3100 - Right Strut Mount to Engine Block
Type: Dim: Length: Head: Grade:



Bracket/Stay  To  Engine Block
35 Ft-Lbs
420 In-Lbs
47.45 N-m
Years: All
Note: 3100 - Torque Strut Through Bolt Nuts
Type: Bolt Dim: Length: Head: Nut Grade:



Bracket/Stay  To  Oil Pan
43 Ft-Lbs
516 In-Lbs
58.3 N-m
Years: All
Note: 3100 - Front Mount Bracket to Oil Pan Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Camshaft Position Sensor  To  Engine Block
8 Ft-Lbs
96 In-Lbs
10.85 N-m
Years: All
Note: 3100 - Camshaft Position Sensor Bolt
Type: Bolt Dim: Length: Head: Hexagon Grade:



Connecting Rod  To  Crankshaft
15 Ft-Lbs
180 In-Lbs
20.34 N-m
Years: All
Note: 3100 - Rod Caps - 2 Steps: 15 FtLbs; +75deg
Type: Dim: Length: Head: Grade:



Crankshaft  To  Engine Block
37 Ft-Lbs
444 In-Lbs
50.17 N-m
Years: All
Note: 3100 - Main Bearing Caps - 2 Steps: 37 FtLbs; +77deg
Type: Dim: Length: Head: Grade:



Crankshaft Position Sensor  To  Engine Block
8 Ft-Lbs
96 In-Lbs
10.85 N-m
Years: All
Note: 3100 - Crankshaft Position Sensor Bolt
Type: Bolt Dim: Length: Head: Hexagon Grade:



Cylinder Head  To  Engine Block
33 Ft-Lbs
396 In-Lbs
44.74 N-m
Years: 1995-1997
Note: 3100 - Head Bolts - 2 Steps: 33FtLbs; +90deg
Type: Bolt Dim: Length: Head: Hexagon Grade:



Cylinder Head  To  Engine Block
37 Ft-Lbs
444 In-Lbs
50.17 N-m
Years: 1998-2001
Note: 3100 - Head Bolts - 2 Steps: 37FtLbs; +90deg
Type: Bolt Dim: Length: Head: Hexagon Grade:



Cylinder Head  To  Engine Block
44 Ft-Lbs
528 In-Lbs
59.66 N-m
Years: 2002-TBD
Note: 3100 - Head Bolts - 2 Steps: 44FtLbs; +95deg
Type: Bolt Dim: Length: Head: Hexagon Grade:



Drain Plug  To  Oil Pan
18 Ft-Lbs
216 In-Lbs
24.4 N-m
Years: All
Note: 3100 - Oil Drain Plug
Type: Bolt Dim: Length: Head: Hexagon Grade:



Engine Mount  To  Transaxle
35 Ft-Lbs
420 In-Lbs
47.45 N-m
Years: All
Note: 3100 - Rear Engine Mount Nuts to Transaxle Bracket
Type: Dim: Length: Head: Nut Grade:



Engine Mount  To  Bracket/Stay
35 Ft-Lbs
420 In-Lbs
47.45 N-m
Years: All
Note: 3100 - Front Engine Mount to Bracket Nuts
Type: Stud Dim: Length: Head: Nut Grade:



Engine Mount  To  Body
35 Ft-Lbs
420 In-Lbs
47.45 N-m
Years: All
Note: 3100 - Rear Engine Mount to Chassis Nuts
Type: Dim: Length: Head: Nut Grade:



Exhaust Manifold  To  Cylinder Head
12 Ft-Lbs
144 In-Lbs
16.27 N-m
Years: All
Note: 3100 - Exhaust Manifold to Cylinder Head
Type: Dim: Length: Head: Grade:



Exhaust Pipe  To  Exhaust Manifold
19 Ft-Lbs
228 In-Lbs
25.76 N-m
Years: All
Note: 3100 - Exhaust Pipe to Exhaust Manifold Nuts
Type: Dim: Length: Head: Nut Grade:



Exhaust Pipe  To  Exhaust System
18 Ft-Lbs
216 In-Lbs
24.4 N-m
Years: All
Note: 3100 - Exhaust Crossover Pipe Nuts
Type: Stud Dim: Length: Head: Nut Grade:



Flywheel  To  Crankshaft
61 Ft-Lbs
732 In-Lbs
82.7 N-m
Years: 1996-1997
Note: 3100 - Flywheel/Driveplate to Crankshaft Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Flywheel  To  Crankshaft
52 Ft-Lbs
624 In-Lbs
70.5 N-m
Years: 1998-2002
Note: 3100 - Flywheel/Driveplate to Crankshaft Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Flywheel  To  Crankshaft
59 Ft-Lbs
708 In-Lbs
79.99 N-m
Years: TBD-1995
Note: 3100 - Flywheel/Driveplate to Crankshaft Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Fuel Pressure Regulator  To  Fuel Line
13 Ft-Lbs
156 In-Lbs
17.63 N-m
Years: All
Note: 3100 - Fuel Pressure Regulator to Fuel Pipe Nut
Type: Dim: Length: Head: Nut Grade:



Fuel Pressure Regulator  To  Bracket/Stay
6.67 Ft-Lbs
80 In-Lbs
9.04 N-m
Years: All
Note: 3100 - Fuel Pressure Regulator Mounting Screw
Type: Screw Dim: Length: Head: Grade:



Fuel Rail  To  Intake Manifold
7.42 Ft-Lbs
89 In-Lbs
10.06 N-m
Years: All
Note: 3100 - Fuel Rail Mounting Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Heat Shield  To  Exhaust Manifold
7.42 Ft-Lbs
89 In-Lbs
10.06 N-m
Years: All
Note: 3100 - Heat Shield
Type: Bolt Dim: Length: Head: Hexagon Grade:



Idle Air Control Valve  To  Throttle Body
2.25 Ft-Lbs
27 In-Lbs
3.05 N-m
Years: All
Note: 3100 - Idle Air Control Valve to Throttle Body
Type: Screw Dim: Length: Head: Grade:



Intake Manifold  To  Cylinder Head
9.58 Ft-Lbs
115 In-Lbs
13 N-m
Years: All
Note: 3100 - Lower Bolts - 2 Steps: 5 FtLbs; 9.58 FtLbs
Type: Bolt Dim: Length: Head: Hexagon Grade:



Intake Manifold  To  Cylinder Head
18 Ft-Lbs
216 In-Lbs
24.4 N-m
Years: All
Note: 3100 - Upper Bolts/Studs
Type: Bolt Dim: Length: Head: Nut Grade:



Oil Pan  To  Engine Block
37 Ft-Lbs
444 In-Lbs
50.17 N-m
Years: All
Note: 3100 - Oil Pan Side Bolts (3 on Rear Side)
Type: Bolt Dim: Length: Head: Hexagon Grade:



Oil Pan  To  Engine Block
18 Ft-Lbs
216 In-Lbs
24.4 N-m
Years: All
Note: 3100 - Oil Pan to Engine Block
Type: Dim: Length: Head: Grade:



Oil Pump  To  Engine Block
30 Ft-Lbs
360 In-Lbs
40.67 N-m
Years: All
Note: 3100 - Oil Pump Mounting Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Power Steering Pump  To  Bracket/Stay
25 Ft-Lbs
300 In-Lbs
33.9 N-m
Years: All
Note: 3100 - Power Steering Pump Mounting Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Pulley  To  Water Pump
18 Ft-Lbs
216 In-Lbs
24.4 N-m
Years: All
Note: 3100 - Water Pump Pully Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Rocker Arm  To  Cylinder Head
7.42 Ft-Lbs
89 In-Lbs
10.06 N-m
Years: 1995-1997
Note: 3100 - Rocker Arm Bolts - 2 Steps: 7.42 FtLbs; +30deg
Type: Bolt Dim: Length: Head: Hexagon Grade:



Rocker Arm  To  Cylinder Head
14 Ft-Lbs
168 In-Lbs
18.98 N-m
Years: 1998-2002
Note: 3100 - Rocker Arm Bolts - 2 Steps: 14 FtLbs; +30deg
Type: Bolt Dim: Length: Head: Hexagon Grade:



Spark Plug  To  Cylinder Head
11 Ft-Lbs
132 In-Lbs
14.91 N-m
Years: All
Note: 3100 - Spark Plug
Type: Dim: Length: Head: Hexagon Grade:



Thermostat Housing Cover  To  Thermostat Housing
18 Ft-Lbs
216 In-Lbs
24.4 N-m
Years: All
Note: 3100 - Thermostat Housing Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Throttle Body  To  Intake Manifold
21 Ft-Lbs
252 In-Lbs
28.47 N-m
Years: All
Note: 3100 - Throttle Body Bolts/Nuts
Type: Dim: Length: Head: Grade:



Thrust Plate  To  Engine Block
11 Ft-Lbs
132 In-Lbs
14.92 N-m
Years: All
Note: 3100 - Camshaft Retainer Plate
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Cover  To  Engine Block
35 Ft-Lbs
420 In-Lbs
47.45 N-m
Years: 1996-1997
Note: 3100 - Timing Chain Cover Bolts - LARGE
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Cover  To  Engine Block
15 Ft-Lbs
180 In-Lbs
20.34 N-m
Years: 1996-1997
Note: 3100 - Timing Chain Cover Bolts - SMALL
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Cover  To  Engine Block
41 Ft-Lbs
492 In-Lbs
55.59 N-m
Years: 1998-2000
Note: 3100 - Timing Chain Cover Bolts - LARGE
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Cover  To  Engine Block
35 Ft-Lbs
420 In-Lbs
47.45 N-m
Years: 1998-2000
Note: 3100 - Timing Chain Cover Bolts - MEDIUM
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Cover  To  Engine Block
15 Ft-Lbs
180 In-Lbs
20.34 N-m
Years: 1998-2000
Note: 3100 - Timing Chain Cover Bolts - SMALL
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Cover  To  Engine Block
41 Ft-Lbs
492 In-Lbs
55.59 N-m
Years: 2001-2001
Note: 3100 - Timing Chain Cover Bolts - LARGE
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Cover  To  Engine Block
41 Ft-Lbs
492 In-Lbs
55.59 N-m
Years: 2001-2001
Note: 3100 - Timing Chain Cover Bolts - MEDIUM
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Cover  To  Engine Block
20 Ft-Lbs
240 In-Lbs
27.12 N-m
Years: 2001-2001
Note: 3100 - Timing Chain Cover Bolts - SMALL
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Cover  To  Engine Block
41 Ft-Lbs
492 In-Lbs
55.59 N-m
Years: 2002-TBD
Note: 3100 - Timing Chain Cover Bolts - LARGE
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Cover  To  Engine Block
20 Ft-Lbs
240 In-Lbs
27.12 N-m
Years: 2002-TBD
Note: 3100 - Timing Chain Cover Bolts - SMALL
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Cover  To  Engine Block
41 Ft-Lbs
492 In-Lbs
55.59 N-m
Years: TBD-1995
Note: 3100 - Timing Chain Cover Bolts - LARGE
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Cover  To  Engine Block
18 Ft-Lbs
216 In-Lbs
24.4 N-m
Years: TBD-1995
Note: 3100 - Timing Chain Cover Bolts - SMALL
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Sprocket  To  Camshaft
81 Ft-Lbs
972 In-Lbs
109.82 N-m
Years: 1996-1997
Note: 3100 - Camshaft Sprocket Bolt
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Sprocket  To  Camshaft
103 Ft-Lbs
1236 In-Lbs
139.65 N-m
Years: 1998-2002
Note: 3100 - Camshaft Sprocket Bolt
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Sprocket  To  Camshaft
74 Ft-Lbs
888 In-Lbs
100.33 N-m
Years: TBD-1995
Note: 3100 - Camshaft Sprocket Bolt
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Tensioner  To  Engine Block
18 Ft-Lbs
216 In-Lbs
24.4 N-m
Years: 1995-1995
Note: 3100 - Timing Chaing Damper Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Tensioner  To  Engine Block
15 Ft-Lbs
180 In-Lbs
20.34 N-m
Years: 1996-2002
Note: 3100 - Timing Chaing Damper Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Torque Converter  To  Flexplate/Driveplate
46 Ft-Lbs
552 In-Lbs
62.37 N-m
Years: All
Note: 3100 - Torque Converter to Drive Plate Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Valve Cover  To  Cylinder Head
7.42 Ft-Lbs
89 In-Lbs
10.06 N-m
Years: All
Note: 3100 - Valve Cover to Cylinder Head Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Vibration Damper/Hub  To  Crankshaft
76 Ft-Lbs
912 In-Lbs
103.04 N-m
Years: All
Note: 3100 - Vibration Damper Bolt
Type: Bolt Dim: Length: Head: Hexagon Grade:



Water Pump  To  Engine Block
7.42 Ft-Lbs
89 In-Lbs
10.06 N-m
Years: All
Note: 3100 - Water Pump Attaching Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade: