Isuzu 4H Engine Manuals, Engine Specifications & Bolt Torques

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Isuzu 4H Engine
Main Bearing Bolts

M18 Bolt torques
Step 1 = 98 Nm, 72 lb.ft
Step 2 = 132 Nm, 97 lb.ft
Step 3 = + 30-60 degrees

M10 Bolt torques
37 Nm, 27 lb.ft

Isuzu 4H Engine
Connecting Rod Bolts

Step 1 = 39 Nm, 29 lb.ft
Step 2 = + 60 degrees
Step 3 = + 30 degrees

Isuzu 4H Engine
Cylinder Head Bolts

M14 Bolt torques
Step 1 = 98 Nm, 72 lb.ft
Step 2 = 147 Nm, 108 lb.ft
Step 3 = + 30-60 degrees

M10 Bolt torques
38 Nm, 28 lb.ft

Isuzu 4HF1 Engine
Displacement, Bore, Stroke
and Compression Ratio

Displacement
4.6334 liter, 264.5 CID

Bore
112 mm, 4.41 in

Stroke
110 mm, 4.33 in

Compression Ratio
19.0:1

Isuzu 4HF1 Engine
Arrangement

4 Cylinder diesel engine
4-stroke cycle
Overhead cam
Water cooled

Isuzu 4HF1 Engine
Power and Torque

Power
114 hp, 85 kW @3200 rpm

Torque
285 Nm, 210 lb.ft @1800 rpm

Isuzu 4HE1-TC Engine
Displacement, Bore, Stroke
and Compression Ratio

Displacement
4.751 liter, 289.9 CID

Bore
110 mm, 4.33 in

Stroke
125 mm, 4.92 in

Compression Ratio
17.3:1

Isuzu 4HE1-TC Engine
Arrangement

4 Cylinder diesel engine
4-stroke cycle
Overhead cam
Water cooled
Turbo charged
Charge-air-cooled

Isuzu 4HE1-TC Engine
Power and Torque

Power
152 hp, 112 kW @2800 rpm

Torque
444 Nm, 330 lb.ft @1700 rpm