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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