Isuzu 4JJ1-4JK1 Manuals, Engine Specifications & Bolt Torques

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Isuzu 4JK1-4JJ1
Connecting Rod Nuts

4JK1,4JJ1 engines
Step 1 = 29 Nm (22 lb ft)
Step 2 = +45 Degrees

Isuzu 4JK1-4JJ1
Main Bearing Bolts

166 Nm, 122 lb.ft

Isuzu 4JK1-4JJ1
Cylinder Head Bolts

Tightening torque:
1st Step = 70 Nm, 51 lb.ft
(repeat above in next Step)
2nd Step = 70 Nm, 51 lb.ft
3rd Step = + 60 degrees
4th Step = + 60 degrees

Isuzu 4JK1

Type
4 cycle diesel
Water cooling
In line, direct injection

Bore
3.76 inches 95.4 mm

Stroke
3.44 inches 87.4 mm

Displacement
152 CID, 2.499 liter

Compression Ratio
18:3

Isuzu 4JJ1

Type
4 cycle diesel
Water cooling
In line, direct injection

Bore
3.76 inches 95.4 mm

Stroke
4.13 inches 104.9 mm

Displacement
183 CID, 2.999 liter

Compression Ratio
17:5