ENGINE ASSEMBLY ( 1 )
ENGINE ASSEMBLY
GENERAL DESCRIPTION
This illustration is based on the A-4JA1 engine.
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The A-4J Series of industrial engines features the unique ISUZU troidal square combustion chamber. This
design provides superior fuel economy for a wide range.
Auto-thermatic pistons with cast steel struts are used to reduce thermal expansion and resulting engine
noise when the engine is cold.
Chrome plated dry type cylinder liners provide the highest durability.
The laminated steel sheet cylinder head gasket is very durable.
This type of gasket eliminates cylinder head bolt retightening.
The tufftrided crankshaft has a long service life. Because it is tufftrided, it cannot be reground.
The crankshaft main bearings and the connecting rod bearings are aluminum plated. These bearings are
especially sensitive to foreign material such as metal scraps. It is very important that the oil ports and
other related parts be kept clean and free of foreign material.
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