Isuzu 4LE2 - Measuring the Engine Compression Pressure; Starter, Generator; Inspecting the Radiator Cap

5-31
INSPECTION AND MAINTENANCE
Measuring the Engine Compression Pressure
This should be performed at periodic inspections or when the engine output has
dropped.
Periodic Inspection and Maintenance
List → Refer to Page 5-36
Compression pressure*
3.04 MPa (31.0 kgf/cm²/441 psi)
* Measurement should be taken under the
conditions of cranking speed 250 rpm and
coolant temperature 70 - 85°C (158 - 185°F).
ADVICE
When the compression pressure is below 2.5 MPa (26 kgf/cm²/363 psi), have
the defective parts of the engine repaired.
•
Starter, Generator
In accordance with the periodic inspection and maintenance list, clean the
commutator of the starter, and check the wear and contact surface conditions of the
brush.
Periodic Inspection and Maintenance
List → Refer to Page 5-36
Inspecting the Radiator Cap
Check the operating pressure of the radiator cap pressure valve using the radiator
compression tester. As for the operating pressure of the pressure valve and the
inspection period, follow the provisions specified by the machine manufacturer.
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