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Jeep 1999 4.0L Engine Torque Specifications

Description Torque
A/C Compressor Bracket to Engine Bolts
34 N· m
25 ft. lbs.
A/C Compressor Mounting Bolts
27 N· m
20 ft. lbs.
A/C Low Pressure Service Valve Nut
38 N· m
28 ft. lbs.
Block Heater Nut
2 N· m
16 in. lbs.
Camshaft Sprocket Bolt
68 N· m
50 ft. lbs.
Camshaft Thrust Plate to Cylinder Block Screws
24 N· m
18 ft. lbs.
Clutch Cover to Flywheel Bolts
54 N· m
40 ft. lbs.
Coil Bracket to Block Bolts
22 N· m
192 in. lbs.
Connecting Rod Nuts
45 N· m
33 ft. lbs.
Cylinder Block Drain Plugs
34 N· m
25 ft. lbs.
Cylinder Head Bolts
135 N· m
100 ft. lbs.
Cylinder Head Cover Bolts
10 N· m
85 in. lbs.
Distributer Clamp Bolt
23 N· m
204 in. lbs.
Engine Mounts - Front Support Bracket Bolts
61 N· m
45 ft. lbs.
Engine Mounts - Front Support Cushion Bolts/Nuts
41 N· m
30 ft. lbs.
Engine Mounts - Front Support Cushion Bracket Bolts
54 N· m
40 ft. lbs.
Engine Mounts - Front Support Cushion Bracket Stud Nuts
41 N· m
30 ft. lbs.
Engine Mounts - Front Support Cushion Thru-Bolt
65 N· m
48 ft. lbs.
Engine Mounts - Rear Crossmember-to-Sill Bolts (Automatic)
41 N· m
30 ft. lbs.
Engine Mounts - Rear Insulator Stud Assembly Nut
41 N· m
30 ft. lbs.
Engine Mounts - Rear Support Cushion/Crossmember Nuts
22 N· m
192 in. lbs.
Engine Mounts - Rear Support Cushion/Bracket Nuts (Manual)
75 N· m
55 ft. lbs.
Transmission Support Bracket Bolt (Manual)
46 N· m
34 ft. lbs.
Transmission Support Bracket/Cushion Bolt (4WD Auto)
75 N· m
55 ft. lbs.
Transmission Support Adapter Bracket Bolts (2WD Auto)
75 N· m
55 ft. lbs.
Exhaust Manifold/Pipe Nuts
27 N· m
20 ft. lbs.
Flywheel to Converter Housing Bolts
38 N· m
28 ft. lbs.
Flywheel to Crankshaft Bolts
143 N· m
105 ft. lbs.
Front Cover-to-Block Bolts ¼-20
7 N· m
60 in. lbs.
Front Cover-to-Block Bolts 5/16-18
22 N· m
192 in. lbs.
Fuel Rail Bolts/Stud
12 N· m
108 in. lbs.
Generator Fixed Bolt
24 N· m
18 ft. lbs.
Generator Thru Bolt/Nut
38 N· m
28 ft. lbs.
Main Bearing Cap Bolts
108 N· m
80 ft. lbs.
Main Bearing Brace Nuts
47 N· m
35 ft. lbs.
Oil Filter
18 N· m
156 in. lbs.
Oil Filter Connector (to adapter)
47 N· m
35 ft. lbs.
Oil Filter Connector (to block)
68 N· m
50 ft. lbs.
Oil Filter Adapter Bolts
102 N· m
75 ft lbs
Oil Galley Plug
41 N· m 30 ft. lbs.
Oil Pan ¼-20 Bolts
9.5 N· m
84 in. lbs.
Oil Pan 5/16-18 Bolts
15 N· m
132 in. lbs.
Oil Pan Drain Plug
34 N· m
25 ft. lbs.
Oil Pump Short Attaching Bolts
23 N· m
204 in. lbs.
Oil Pump Long Attaching Bolts
23 N· m
204 in. lbs.
Oil Pump Cover Bolts
8 N· m
70 in. lbs.
Power Steering Pump Pressure Hose Nut
52 N· m
38 ft. lbs.
Rocker Arm Assembly-to-Cylinder Head Capscrews
30 N· m
21 ft. lbs.
Spark Plugs
37 N· m
27 ft. lbs.
Starter Motor Mounting Bolts
45 N· m
33 ft. lbs.
Thermostat Housing Bolts
18 N· m
156 in. lbs.
Throttle Body Bolts
10 N· m
90 in. lbs.
Vibration Damper Bolts
108 N· m
80 ft. lbs.
Water Pump/Block Bolts
23 N· m
17 ft. lbs.
Source: 1999 Jeep Wrangler Factory Service Manual (FSM)

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