| Series 149 Torque Specifications |
| Thread
Size (in.) |
Class & Application |
Torque Specifications |
| lb-ft |
N-m |
| 1/4-28 |
Standard Torque Specification |
8-10 |
11-14 |
| Screw-Inj. Rack Control Lever |
2-3 |
3-4 |
| 5/16-18 |
Standard
Torque Specification |
13-17 |
18-23 |
| Bolt-Turbocharger Back Plate Assembly to Center
Housing |
7-10 |
9-14 |
| 5/16-24 |
Standard
Torque Specification |
15-19 |
20-26 |
| Nut-Lock-Push Rod |
15-19 |
20-26 |
| Nut-Lock Valve Bridge Adj. Screw |
20-25 |
27-34 |
| Bolt-Camshaft Drive Coupling |
20-25 |
27-34 |
| 3/8-16 |
Standard
Torque Specification |
30-35 |
41-47 |
| 3/8-24 |
Standard
Torque Specification |
35-39 |
47-53 |
| Nut-Water Pump to Front Cover |
25-30 |
34-41 |
| Bolt-Camshaft Drive Coupling |
45-50 |
61-68 |
| Bolt-Fuel Pump Drive Coupling Retainer |
50-55 |
68-75 |
| 7/16-14 |
Standard
Torque Specification |
46-50 |
62-68 |
| Bolt-Blower Hold Down |
50-55 |
68-75 |
| Bolt-Injector Hold Down Clamp |
46-50 |
62-68 |
| 7/16-20 |
Standard
Torque Specification |
57-61 |
77-83 |
| Nut-Fuel Jumper Line to Injector |
18-22 |
24-30 |
| Nut-Water Pump Shaft (Lock) |
40-45 |
54-61 |
| Bolt-Crankshaft Flange Coupling |
70-80 |
95-108 |
| 1/2-13 |
Nut-Exhaust
Manifold Standard |
32-38 |
43-52 |
| Nut-Fuel Manifold Connector |
35-40 |
47-54 |
| Bolt-Fan Blade to Pulley Hub |
71-75 |
96-102 |
| Bolt-Cylinder Block |
75-85 |
102-115 |
| Bolt-Crankshaft and Camshaft Idler Hub Center Bolt |
80-90 |
108-122 |
| Bolt-Camshaft Bearing Cap |
90-100 |
122-136 |
| Bolt-Rocker Arm Shaft |
90-100 |
122-136 |
| 1/2-20 |
Standard
Torque Specification |
83-93 |
113-126 |
| Nut-Exhaust Manifold Stud |
35-40 |
47-54 |
| Bolt-Cylinder Block |
85-95 |
115-129 |
| Bolt-Crankshaft Flange Coupling |
100-110 |
136-149 |
| 9/16-12 |
Standard
Torque Specification |
90-100 |
122-136 |
| Bolt-Blower Hold Down |
75-85 |
102-115 |
| Bolt-Main Bearing Cap |
120-130 |
163-176 |
| 9/16-18 |
Standard
Torque Specification |
107-117 |
145-159 |
| Nut-Crankshaft Bearing Cap |
130-140 |
176-190 |
| Bolt-Cylinder Head |
90-100* |
122-136 |
| 5/8-11 |
Standard
Torque Specification |
137-147 |
186-199 |
| 5/8-18 |
Standard
Torque Specification |
168-178 |
228-241 |
| Bolt-Crankshaft Adaptor |
175-185 |
237-251 |
| Bolt-Flywheel (Self Locking) |
180-190 |
244-258 |
| Bolt-Vibration Damper |
180-190 |
244-258 |
| Nut-Raw Water Pump Shaft Retaining |
25-30 |
34-41 |
| Nut-Alternator Pulley |
70-80 |
95-108 |
| Nut-Special Self Locking Nut (10SI Alternator) |
40-60 |
54-81 |
| Bolt-Oil Pick-Up Assembly |
20-25 |
27-34 |
| 3/4-10 |
Nut-Flange
Mounted Air Compressor Drive Shaft |
70-80 |
95-108 |
| Bolt-Crankshaft Main Bearing |
280-290 |
380-393 |
| 3/4-16 |
Standard
Torque Specification |
290-300 |
393-407 |
| |
Accessory
Drive Pulley Nut |
120-140 |
163-190 |
| 3/4-18 |
Nut,
Dipstick Tube |
30-35 |
41-47 |
| 7/8-14 |
Standard
Torque Specification |
475-485 |
644-658 |
| 1
1/4-7 |
Bolt-Crankshaft
Pulley Retainer |
450-500 |
610-678 |
| 1
5/16-18 |
Nut-Blower
Timing Gear |
200-250 |
271-339 |
| 2.548-18 |
Nut-Idler
Gear Bearing (Lock) |
280-300 |
380-407 |
| 3.137-12 |
Nut-Camshaft
Gear Bearing (Lock) |
280-300 |
380-407 |
| * Follow cross-pattern bolt torquing sequence and multiple
stage process leading up to the final torque process. After final torque is achieved, turn
each bolt 90 degrees (1/4 turn clock-wise) with a single smooth
pull of the wrench. |
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| Series
149 Pipe Plug Oil Cooler |
| Plug
Size (in.) |
Characteristic |
Torque Specifications |
| lb-ft |
N-m |
| 1 1/16-16 |
Plug-Oil Cooler Bypass
Valve |
80-90 |
108-122 |
| 1
1/4-16 |
Plug-Oil
Filter Bypass Valve |
95-105 |
129-142 |
| 1
1/2-6 |
Plug-Oil
Filter Bypass Valve |
110-130 |
149-176 |
| 2-12 |
Plug-Oil
Filter Bypass |
130-150 |
176-203 |
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| Series
149 Pipe Plug |
| Plug
Size (in.) |
Characteristic |
Torque Specifications |
| lb-ft |
N-m |
| 1/8-27 |
Plug-Pipe (3/4 Taper) |
10-12 |
14-16 |
| 1/4-18 |
Plug-Pipe
(3/4 Taper) |
14-16 |
19-22 |
| 1/4-18 |
Plug-Pipe
(7/8 Taper) |
14-16 |
19-22 |
| 3/8-18 |
Plug-Pipe
(3/4 Taper) |
18-22 |
24-30 |
| 3/8-18 |
Plug-Pipe
(7/8 Taper) |
18-22 |
24-30 |
| 1/2-14 |
Plug-Pipe
(3/4 Taper) |
23-27 |
31-37 |
| 1/2-14 |
Plug-Pipe
(7/8 Taper) |
23-27 |
31-37 |
| 3/4-14 |
Plug-Pipe
(3/4 Taper) |
33-37 |
45-50 |
| 3/4-14 |
Plug-Pipe
(7/8 Taper) |
33-37 |
45-50 |
| 1-11
1/2 |
Plug-Pipe
(3/4 Taper) |
75-85 |
102-115 |
| 1-11
1/2 |
Plug-Pipe
(7/8 Taper) |
75-85 |
102-115 |
| 1
1/4-11 1/2 |
Plug-Pipe
(3/4 Taper) |
95-105 |
129-142 |
| 1
1/2-11 1/2 |
Plug-Pipe
(3/4 Taper) |
110-130 |
149-176 |
| 1
1/2-11 1/2 |
Plug-Pipe
(7/8 Taper) |
110-130 |
149-176 |
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| Series
149 Stud |
| Plug
Size (in.) |
Class & Application |
Torque Specifications |
| lb-ft |
N-m |
| 1/2-13 |
Stud-Exhaust
Manifold |
35-40 |
47-54 |
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