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Engine Torque Specifications



Torque Specifications for AMC 4.2L-258ci-S6



Carburetor  To  Intake Manifold
15 Ft-Lbs
180 In-Lbs
20.34 N-m
Years: All
Note: Carburetor to Intake Manifold
Type: Dim: Length: Head: Grade:



Connecting Rod  To  Crankshaft
33 Ft-Lbs
396 In-Lbs
44.74 N-m
Years: All
Note: Connecting Rod Cap Nuts
Type: Bolt Dim: Length: Head: Nut Grade:



Crankshaft  To  Engine Block
80 Ft-Lbs
960 In-Lbs
108.47 N-m
Years: All
Note: Main Cap Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Cylinder Head  To  Engine Block
110 Ft-Lbs
1320 In-Lbs
149.14 N-m
Years: All
Note: 3 Step: 22; 45; 110-NOTE: Left Front Bolt Final=100FtLbs
Type: Bolt Dim: Length: Head: Hexagon Grade:



Cylinder Head  To  Engine Block
100 Ft-Lbs
1200 In-Lbs
135.58 N-m
Years: All
Note: Left Front Bolt ONLY - 3 Step: 22; 45; 100
Type: Bolt Dim: Length: Head: Hexagon Grade:



Distributor Clamp  To  Engine Block
17 Ft-Lbs
204 In-Lbs
23.05 N-m
Years: All
Note: Distributor Clamp Bolt
Type: Bolt Dim: Length: Head: Hexagon Grade:



Drain Plug  To  Oil Pan
25 Ft-Lbs
300 In-Lbs
33.9 N-m
Years: All
Note: Oil Drain Plug
Type: Bolt Dim: Length: Head: Hexagon Grade:



Exhaust Manifold  To  Cylinder Head
17 Ft-Lbs
204 In-Lbs
23.05 N-m
Years: All
Note: Intake/Exhaust Manifold - Cyl 2 & 5 Lower
Type: Dim: Length: Head: Grade:



Exhaust Manifold  To  Cylinder Head
23 Ft-Lbs
276 In-Lbs
31.18 N-m
Years: All
Note: Intake/Exhaust Manifold - EXCEPT Cyl 2 & 5 Lower
Type: Dim: Length: Head: Grade:



Fan Blade  To  Fan Clutch
18 Ft-Lbs
216 In-Lbs
24.4 N-m
Years: All
Note: Fan to Fan Clutch Nuts
Type: Dim: Length: Head: Nut Grade:



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



Flexplate/Driveplate  To  Crankshaft
105 Ft-Lbs
1260 In-Lbs
142.36 N-m
Years: All
Note: Driveplate Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Flywheel  To  Crankshaft
105 Ft-Lbs
1260 In-Lbs
142.36 N-m
Years: All
Note: Flywheel Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Fuel Pump  To  Engine Block
16 Ft-Lbs
192 In-Lbs
21.69 N-m
Years: All
Note: Mechanical Fuel Pump Mounting Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Intake Manifold  To  Cylinder Head
17 Ft-Lbs
204 In-Lbs
23.05 N-m
Years: All
Note: Intake/Exhaust Manifold - Cyl 2 & 5 Lower
Type: Dim: Length: Head: Grade:



Intake Manifold  To  Cylinder Head
23 Ft-Lbs
276 In-Lbs
31.18 N-m
Years: All
Note: Intake/Exhaust Manifold - EXCEPT Cyl 2 & 5 Lower
Type: Dim: Length: Head: Grade:



Oil Pan  To  Engine Block
7 Ft-Lbs
84 In-Lbs
9.49 N-m
Years: All
Note: 1/4x20 Oil Pan Bolts
Type: Bolt Dim: UN 1/4 X 20 Length: Head: Hexagon Grade:



Oil Pan  To  Engine Block
11 Ft-Lbs
132 In-Lbs
14.91 N-m
Years: All
Note: 5/16x18 Oil Pan Bolts
Type: Bolt Dim: UN 5/16 X 18 Length: Head: Hexagon Grade:



Oil Pump  To  Engine Block
17 Ft-Lbs
204 In-Lbs
23.05 N-m
Years: All
Note: Oil Pump Mounting Bolts - LONG
Type: Bolt Dim: Length: Head: Hexagon Grade:



Oil Pump  To  Engine Block
10 Ft-Lbs
120 In-Lbs
13.56 N-m
Years: All
Note: Oil Pump Mounting Bolts - SHORT
Type: Bolt Dim: Length: Head: Hexagon Grade:



Oxygen Sensor (Lambda)  To  Exhaust Pipe
22 Ft-Lbs
264 In-Lbs
29.83 N-m
Years: All
Note: Oxygen Sensor
Type: Dim: Length: Head: Grade:



Pressure Plate  To  Flywheel
40 Ft-Lbs
480 In-Lbs
54.23 N-m
Years: All
Note: Pressure Plate Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Pulley  To  Vibration Damper/Hub
20 Ft-Lbs
240 In-Lbs
27.12 N-m
Years: All
Note: Crankshaft Pulley to Vibration Damper Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Rocker Arm  To  Cylinder Head
19 Ft-Lbs
228 In-Lbs
25.76 N-m
Years: All
Note: Rocker Arm to Cylinder Head Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Spark Plug  To  Cylinder Head
27 Ft-Lbs
324 In-Lbs
36.61 N-m
Years: All
Note: Spark Plugs
Type: Dim: Length: Head: Grade:



Thermostat Housing  To  Cylinder Head
13 Ft-Lbs
156 In-Lbs
17.63 N-m
Years: All
Note: Thermostat Housing Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Throttle Body  To  Intake Manifold
9 Ft-Lbs
108 In-Lbs
12.2 N-m
Years: All
Note: Throttle Body to Intake Manifold - Multi Port Injection
Type: Dim: Length: Head: Nut Grade:



Throttle Body  To  Intake Manifold
15 Ft-Lbs
180 In-Lbs
20.34 N-m
Years: All
Note: Throttle Body to Intake Manifold - Throttle Body Injection
Type: Dim: Length: Head: Grade:



Timing Chain/Belt Cover  To  Engine Block
5 Ft-Lbs
60 In-Lbs
6.78 N-m
Years: All
Note: Timing Chain Cover to Engine Block - BOLTS
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Cover  To  Engine Block
16 Ft-Lbs
192 In-Lbs
21.69 N-m
Years: All
Note: Timing Chain Cover to Engine Block - NUTS
Type: Dim: Length: Head: Nut Grade:



Timing Chain/Belt Sprocket  To  Camshaft
50 Ft-Lbs
600 In-Lbs
67.79 N-m
Years: All
Note: Camshaft Sprocket Bolt
Type: Bolt Dim: Length: Head: Hexagon Grade:



Timing Chain/Belt Tensioner  To  Engine Block
14 Ft-Lbs
168 In-Lbs
18.98 N-m
Years: All
Note: Tensioner Bracket to Engine Block Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Torque Converter  To  Flexplate/Driveplate
40 Ft-Lbs
480 In-Lbs
54.23 N-m
Years: All
Note: Torque Converter to Driveplate Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade:



Valve Cover  To  Cylinder Head
4.58 Ft-Lbs
55 In-Lbs
6.22 N-m
Years: All
Note: Valve Cover Bolts - With Permanet Gasket
Type: Bolt Dim: Length: Head: Hexagon Grade:



Valve Cover  To  Cylinder Head
2.33 Ft-Lbs
28 In-Lbs
3.16 N-m
Years: All
Note: Valve Cover Bolts - With RTV
Type: Bolt Dim: Length: Head: Hexagon Grade:



Vibration Damper/Hub  To  Crankshaft
80 Ft-Lbs
960 In-Lbs
108.47 N-m
Years: All
Note: Vibration Damper Center Bolt (Lubricated)
Type: Bolt Dim: Length: Head: Hexagon Grade:



Water Pump  To  Engine Block
15 Ft-Lbs
180 In-Lbs
20.34 N-m
Years: All
Note: Water Pump Mounting Bolts
Type: Bolt Dim: Length: Head: Hexagon Grade: