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Cummins B-Series 1990 Torque Specifications

Size MM (inch)	Class & Application	Torque Specifications
Size MM (inch)	Class & Application	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