Isuzu 4JH1 User Manual

ENGINE MECHANICAL 6A – 47
DISASSEMBLY
INTERNAL PARTS
MAJOR COMPONENTS
Disassembly Steps-1
1. Water bypass hose 5. Rocker arm shaft and rocker
2. Thermostat housing with thermo arm
switch 6. Push rod
3. Cylinder head cover 7. Cylinder head
4. Injection nozzle and bracket 8. Cylinder head gasket
011R300001

Isuzu 4JH1 Specifications

General

Bore x Stroke	95.4 mm x 104.9 mm
Compression Ratio	18.5:1
Fuel System	Direct injection
Cylinder Configuration	Inline-4
Valves per Cylinder	4
Fuel Type	Diesel
Engine Type	Diesel, four-stroke
Displacement	3.0 liters
Maximum Torque	217 lb-ft (294 Nm) @ 1800 rpm
Oil Capacity	6.5 liters (with filter)