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Isuzu 4JB1, 4JB1T, 4JB1TC, 4JG2 Bolt Tightening Torques
Isuzu 4JB1, 4JB1T, 4JB1TC, 4JG2 Connecting Rod Nut Torques
4JG2 engines
Step 1 = 30 Nm
Step 2 = + 45-75 degrees
4JB1 engines
Step 1 = 83 Nm
Isuzu 4JB1, 4JB1T, 4JB1TC, 4JG2 Main Bearing Bolt Torques
Step 1 = 50 Nm
Step 2 = 100 Nm
Step 3 = 167 Nm
Isuzu 4JB1, 4JB1T, 4JB1TC, 4JG2, Cylinder Head Bolt torque
Step 1 = 50 Nm
Step 2 = + 60-75 degrees
Step 3 = + 60-75 degrees
Isuzu 4JB1 Engine Specifications
Isuzu 4JB1 Specs
Bore
3.7 inches 93 mm
Stroke
4.0 inches 102 mm
Displacement
169 CID, 2.8 liter
Compression Ratio
18.2:1
Weight
552 lb, 250 kg
Isuzu 4JB1 Power and Torque
Industrial Rating
Intermittent = 52 kW, 70 hp @ 3000 rpm
Continuous = 45 kW, 61 hp @ 3000 rpm
Max Torque = 176 Nm, 132 ft.lb @ 2000 rpm
Diesel Engine Specs
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