| Cummins B-Series 1990 Torque Specifications |
| Size MM (inch) |
Class & Application |
Torque Specifications |
| N-m |
lb-ft |
| 10 |
Aftercooler Mounting |
24 ± 3 |
18 |
| (5/16) |
Aftercooler
Water Hose Clamp |
5 ± 1 |
4 |
| (15/16) |
Air
Compressor (Bendix) Gear Nut |
125 ± 13 |
93 |
| 18 |
Air
Compressor (Bendix) Mounting Nut |
77 ± 7 |
57 |
| 12 |
Air
Fuel Control Banjo Screw (in Pump) |
12 ± 2 |
9 |
| (1/2) |
Air
Fuel Control Fitting (In Head) |
8 ± 1 |
6 |
| (15/16) |
Alternator
Pulley |
80 ± 8 |
59 |
| 13
or (3/4) |
Alternator
Link (Delco 15-20-27 SI) |
43 ± 4 |
32 |
| 16 |
Alternator
Mounting Bolt 15 SI |
43 ± 4 |
32 |
| 18 |
Alternator
Mounting Bolt and Nut 20-27 SI |
77 ± 7 |
57 |
| 13 |
Alternator
Support (Upper) |
24 ± 3 |
18 |
| 23 |
Balancer
Mounting ---Step 1 |
50 |
36 |
| |
Step 2 |
70 |
51 |
| |
Step 3 |
175 |
129 |
| Allen
8mm |
Balancer
Idler Gear |
43 ± 4 |
32 |
| Allen
5mm |
Belt
Tensioner Flat Bracket |
24 ± 3 |
18 |
| 15 |
Belt
Tensioner Mounting |
43 ± 4 |
32 |
| 13 |
Cam
Thrust Plate |
24 ± 3 |
18 |
| 12 |
Connecting
Rod --- Step1 |
35 |
26 |
| |
Step 2 |
70 |
51 |
| |
Step 3 |
100 |
73 |
| 15 |
Crankshaft
Damper & Pulley |
125 ± 6 |
92 |
| 18 |
Cylinder
Head Mounting ---Step 1 |
40 |
29 |
| |
Step 2 |
85 |
62 |
| |
Step 3 |
126 |
93 |
| (5/16) |
Crossover
Clamp |
5 ± 1 |
4 |
| 13 |
Exhaust
Manifold |
43 ± 4 |
32 |
| 13 |
Exhaust
Outlet Pipe Brkt. Mounting |
43 ± 4 |
32 |
| 13 |
Exhaust
Outlet Pipe, Flanged |
24 ± 3 |
18 |
| (7/16) |
Exhaust
Outlet Pipe, V Band Clamp |
8 ± 1 |
6 |
| 10 |
Fan
Bracket Mounting |
24 ± 3 |
18 |
| 13 |
Fan
pulley |
24 ± 3 |
18 |
| 19 |
Flywheel |
137 ± 7 |
101 |
| 15 |
Flywheel
Housing |
60 ± 6 |
45 |
| 13 |
Flywheel
Housing Cover |
24 ± 3 |
18 |
| (1/2) |
Flywheel
Housing Plug |
36 ± 3 |
25 |
| |
Front
Cover Cap |
--Hand
Tighten-- |
| 18 |
Front
Engine Support Mounting |
77 ± 7 |
57 |
| (1
1/8) |
Front
Engine Support (Barrel) |
350 ± 20 |
257 |
| 17 |
Fuel
Banjo Screw (in Fuel Pump) |
32 ± 3 |
27 |
| 17 |
Fuel
Banjo Screw (In Head) |
24 ± 3 |
18 |
| 10 |
Fuel
Banjo Screw (In Injector) |
8 ± 1 |
6 |
| 10 |
Fuel
Vent Screw (In Banjo) |
8 ± 1 |
6 |
| 80-95 |
Fuel
Filter |
3/4
Turn After Contact |
| 14 |
Fuel
Low Pressure Supply |
32 ± 3 |
27 |
| 24 |
Fuel
Filter Adapter Nut |
32 ± 3 |
24 |
| 17 |
Fuel
Line Fitting (High Press) |
24 ± 3 |
18 |
| 22 |
Fuel
Pump Drive Gear (with Pump Unlocked) |
65 ± 6 |
48 |
| 10 |
Fuel
Pump Lock (Bosch) |
30 ± 3 |
22 |
| 10 |
Fuel
Pump Unlock (Bosch) |
13 ± 3 |
10 |
| (9/16) |
Fuel
Pump Lock (CAV) |
7 ± 1 |
5 |
| (9/16) |
Fuel
Pump Unlock (CAV) |
20 ± 3 |
15 |
| 13 |
Fuel
Pump Mounting Nut |
24 ± 3 |
18 |
| 10 |
Fuel
Pump Support Bracket |
24 ± 3 |
18 |
| 10 |
Gear
Cover |
24 ± 3 |
18 |
| 10 |
Gear
Housing-to-Block |
24 ± 3 |
18 |
| 24 |
Injector
Retaining Nut |
60 ± 5 |
44 |
| 10 |
Intake
Manifold Cover |
24 ± 3 |
18 |
| (5/8) |
Intake
Heater Plug |
125 ± 10 |
90 |
| 10 |
Lift
Pump Mounting/Cover Plate |
24 ± 3 |
18 |
| 18 |
Lifting
Bracket (Rear) |
77 ± 7 |
57 |
| 23 |
Main
Bearing Cap ---Step 1 |
60 |
44 |
| |
Step 2 |
119 |
88 |
| |
Step 3 |
176 |
129 |
| 15 |
Oil
Fill Tube Mounting |
43 ± 4 |
32 |
| 75-85 |
Oil
Filter |
3/4
Turn After Contact |
| 10 |
Oil
Cooler Assembly |
24 ± 3 |
18 |
| 17 |
Oil
Pan Drain Plug |
80 ± 3 |
60 |
| 17 |
Oil
Pan Heater Plug |
80 ± 3 |
60 |
| 10 |
Oil
Pan Mounting |
24 ± 3 |
18 |
| 19 |
Oil
Pressure Regulator Plug |
80 ± 12 |
60 |
| 13 |
Oil
Pump Mounting |
24 ± 3 |
18 |
| 13 |
Oil
Suction Tube (Flange) |
24 ± 3 |
18 |
| 10 |
Oil
Suction Tube Brace |
24 ± 3 |
18 |
| 15 |
PTO
Adapter |
77 ± 7 |
57 |
| 13 |
PTO
Adapter Cover Plate (A Drive) |
43 ± 4 |
32 |
| 15 |
PTO
Adapter Cover Plate (B Drive) |
77 ± 7 |
57 |
| (3/4) |
PTO
Gear Nut A Drive |
100 ± 10 |
74 |
| (15/16) |
PTO
Gear Nut B Drive |
134 ± 13 |
100 |
| 8 |
Rear Seal Mounting |
9 ± 1 |
7 |
| 13 |
Rocker
Support |
24 ± 3 |
18 |
| (9/16) |
Rocker
Lever Nut |
24 ± 3 |
18 |
| 10 |
Starter
Mounting |
43 ± 4 |
32 |
| 10 |
Tach
Drive Retainer |
3 ± 1 |
2 |
| 10 |
Tappet
Cover / Fuel Drain Line Supports |
24 ± 3 |
18 |
| (7/16) |
Tee
Bolt Type Clamp |
8 ± 1 |
6 |
| 10 |
Thermostat
Housing |
24 ± 3 |
18 |
| T-25
Torx |
Timing Pin Flange Mounting |
5 ± 1 |
4 |
| (13) |
Turbine
Housing |
11 ± 2 |
8 |
| 10 |
Turbo
Compressor Housing Clamp |
6 ± 1 |
5 |
| 15 |
Turbo
Mounting Nut |
32 ± 3 |
24 |
| 13 |
Turbo
Oil Drain Tube |
24 ± 3 |
18 |
| (5/8) |
Turbo
Oil Supply (Both Ends) |
15 ± 2 |
11 |
| (5/8) |
Water
Hose Clamps |
4-5 |
4 |
| 13 |
Water
Inlet Connection |
43 ± 4 |
32 |
| (3/8) |
Water
Inlet Plugs |
24 ± 3 |
18 |
| 13 |
Water
Pump Mounting |
24 ± 3 |
18 |
| 15 |
Valve
Cover |
24 ± 3 |
18 |
| |
Valve
Cover Oil Fill |
Hand
Tighten |
| 10 |
WABCO
Air Compressor Gear C/S |
24 ± 3 |
18 |
| 27 |
WABCO
Gear Hub Mounting Nut |
180 ± 18 |
133 |
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