Back to Cummins Engine Information

Cummins B-Series 1991-1994 Torque Specifications

Size MM (inch)	Class & Application	Torque Specifications
Size MM (inch)	Class & Application	N-m	lb-ft
10	Aftercooler Mounting	24	18
(5/16)	Aftercooler Water Hose Clamp	5	4
(15/16)	Alternator Pulley	80	59
13 or (3/4)	Alternator Link (Delco 15-20-27 SI)	43	32
16	Alternator Mounting Bolt 15 SI	43	32
18	Alternator Mounting Bolt and Nut 20-27 SI	77	57
13	Alternator Support (Upper)	24	18
23	Balancer Mounting -- Step 1	50	36
	Step 2	80	58
	Step 3	175	129
Allen 8mm	Balancer Idler Gear	43	32
Allen 5mm	Belt Tensioner Flat Bracket	24	18
15	Belt Tensioner Mounting	43	32
	Camshaft bolt step 1	27	20
	Step 2	Rotate 180 degrees
13	Cam Thrust Plate	24	18
3/8	Coolant Heater	12	9
12	Connecting Rod -- Step1	35	26
	Step 2	70	51
	Step 3	100	73
15	Crankshaft Damper & Pulley	125	92
18	Cylinder Head Mounting -- Step 1 (All)	90	66
	Step 2 (All) Recheck to	90	66
	Step 3 (Long Capsrews)	120	90
	Step 4 Recheck (Long Capscrews Only)	120	90
	Step 5 (All) Rotate 90°
(5/16)	Crossover Clamp	5	4
13	Exhaust Manifold	43	32
13	Exhaust Outlet Pipe Brkt. Mounting	43	32
13	Exhaust Outlet Pipe, Flanged	24	18
(7/16)	Exhaust Outlet Pipe, V Band Clamp	8	6
10	Fan Bracket Mounting	24	18
13	Fan pulley	24	18
19	Flywheel	137	101
15	Flywheel Housing	77	57
13	Flywheel Housing Cover	24	18
(1/2)	Flywheel Housing Plug	36	25
	Front Cover Cap	Hand Tighten
18	Front Engine Support Mounting	77	57
(1-1/8)	Front Engine Support (Barrel)	350	257
17	Fuel Banjo Screw (in Fuel Pump)	32	27
17	Fuel Banjo Screw (In Head)	24	18
10	Fuel Banjo Screw (In Injector)	9	6
10	Fuel Vent Screw (In Banjo)	9	6
80-95	Fuel Filter	3/4 Turn After Contact
14	Fuel Low Pressure Supply (Lift Pump Outlet)	24	18
24	Fuel Filter Adapter Nut	32	24
17	Fuel Line Fitting (High Press)	24	18
22	Fuel Pump Drive Gear (with Pump Unlocked)
	Bosch Rotary, Lucas CAV, Stanadyne DB4	65	48
	Nippondenso	123	92
	Bosch (P3000, P7100)	165	122
10	Fuel Pump Lock (Bosch)	30	22
10	Fuel Pump Unlock (Bosch)	13	10
(9/16)	Fuel Pump Lock (CAV) (Stanadyne DB4)	12	9
(9/16)	Fuel Pump Unlock (CAV) (Stanadyne DB4)	12	9
13	Fuel Pump Mounting Nut (Bosch Rotary, Stanadyne)	24	18
	Fuel Pump Mounting Nut (Nippondenso)	43	32
	Fuel Pump Mounting Nut (Lucas, CAV)	30	22
	Fuel Pump Mounting Nut (Bosch In-line)	43	32
	Fuel Pump Solenoid
24	(Bosch) VE	43	32
22	(CAV)	15	11
10	Fuel Pump Support Bracket	24	18
10	Gear Cover	24	18
10	Gear Housing-to-Block	24	18
24	Injector Retaining Nut	60	44
10	Intake Manifold Cover	24	18
(5/8)	Intake Heater Plug	125	90
10	Lift Pump Mounting/Cover Plate	24	18
18	Lifting Bracket (Rear)	77	57
23	Main Bearing Cap -- Step 1	60	44
	Step 2	119	88
	Step 3	176	129
15	Oil Fill Tube Mounting	43	32
75-85	Oil Filter	3/4 Turn After Contact
10	Oil Cooler Assembly	24	18
17	Oil Pan Drain Plug	80	60
17	Oil Pan Heater Plug	80	60
10	Oil Pan Mounting	24	18
19	Oil Pressure Regulator Plug	80	60
13	Oil Pump Mounting	24	18
13	Oil Suction Tube (Flange)	24	18
10	Oil Suction Tube Brace	24	18
15	PTO Adapter	77	57
13	PTO Adapter Cover Plate (A Drive)	43	32
15	PTO Adapter Cover Plate (B Drive)	77	57
(3/4)	PTO Gear Nut A Drive	100	74
(15/16)	PTO Gear Nut B Drive	134	100
8	Rear Seal Mounting	9	7
13	Rocker Support	24	18
(9/16)	Rocker Lever Nut	34	25
10	Starter Mounting	43	32
10	Tach Drive Retainer	3	2
10	Tappet Cover / Fuel Drain Line Supports	24	18
10	Thermostat Housing	24	18
T-25 Torx	Timing Pin Flange Mounting	5	4
10	Turbo Compressor Housing V-Band	8.5	6
15	Turbo Mounting Nut	43	32
13	Turbo Oil Drain Tube	24	18
(5/8)	Turbo Oil Supply (Both Ends)	35	26
13	Turbocharger Turbine Housing	20	15
(5/8)	Water Hose Clamps	4-5	4
13	Water Inlet Connection	43	32
(3/8)	Water Inlet Plugs	24	18
13	Water Pump Mounting	24	18
15	Valve Cover	24	18
	Valve Cover Oil Fill	Hand Tighten