Auto Parts ISUZU Engine 4JJ1 Cylinder Liner 9-97367-387-1

What is a cylinder liner?

It is a cylinder that is fitted to the engine block to form the cylinder, and is one critical function part that forms the engine interior.
In Japan they are usually called Cylinder Liners, but some countries (companies) call them Cylinder Sleeves.

The engine's cylinder wall is high temperature/high pressure, and the Piston Ring/piston is sliding at high speed, and particularly with truck/bus engines a long-life is demanded, so we use highly friction resistant casting material Cylinder Liners only for cylinders. Also, in recent years, to make engines light-weight, engine blocks are changing from casting to aluminum alloys, however, aluminum alloys suffer deformation and friction during direct sliding when used for the cylinder inner circumference, therefore, the aluminum die cast block is mainly used where the Cylinder Liner is cast-in.

Precautions of Cylinder Liner
While cylinder liners offer numerous advantages, there are certain precautions to keep in mind to maximize their effectiveness and longevity. It is important to avoid overheating the engine, as high temperatures can cause the cylinder liners to warp or crack, leading to engine damage. Proper cooling system maintenance is essential to prevent overheating and ensure the optimal functioning of the cylinder liners. Furthermore, using low-quality or incorrect lubricants can result in increased friction and accelerated wear of the cylinder liners. It is crucial to use the recommended lubricants specified by the manufacturer to maintain proper lubrication and prevent premature wear. Additionally, avoiding excessive pressure or force when installing or removing cylinder liners is necessary to prevent damage to the engine block or the liners themselves. Regular inspections and maintenance, as well as following proper installation procedures, can help prevent problems and ensure the longevity of the cylinder liners in the engine.