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Wednesday, 16 September 2026 11:24

MAN L21/31; Glue (Code 195956)

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The glue, code 195956, is a specialized bonding and securing material intended for particular assembly, maintenance, and repair applications associated with the MAN L21/31 engine. Depending on the specified application, such an adhesive may be used to secure threaded or cylindrical connections, assist in sealing mating surfaces, prevent loosening caused by vibration, or provide additional retention between assembled components. In demanding marine and industrial engine environments, the selected adhesive must maintain the required properties when exposed to temperature variations, vibration, lubricating oil, fuel, moisture, and other operating influences relevant to its installation location. Thorough cleaning and preparation of the surfaces, application of the correct quantity, proper assembly, and observance of the specified curing conditions and time are essential for achieving a dependable bond. The adhesive should always be selected and applied according to the relevant technical and maintenance requirements. When correctly used, the glue can improve connection security, reduce the possibility of leakage or loosening, support efficient maintenance, and contribute to the long-term operational reliability of the MAN L21/31 engine.

Wednesday, 16 September 2026 11:23

MAN L21/31; Oval Flange (Code 170901)

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The oval flange, code 170901, is a precision-engineered connection component used in the MAN L21/31 engine to establish a secure and leak-resistant interface between piping, fluid-system components, or other associated engine connections. Its oval geometry can provide a compact and practical fastening arrangement where installation space, connection configuration, and reliable sealing are important considerations. During engine operation, the flange and its fastening arrangement may be exposed to internal pressure, vibration, thermal expansion, mechanical loads, and operating media such as lubricating oil, fuel, cooling water, or air, depending on its specific application. Accurate machining of the flange faces and fastening points, correct gasket or sealing-element installation, suitable material properties, and controlled tightening are essential for maintaining alignment and preventing leakage. Regular inspection should include checking the sealing surfaces, fastener locations, and flange body for corrosion, cracking, deformation, erosion, or other damage. By providing a stable and dependable connection, the oval flange supports controlled fluid transfer, effective sealing, safe maintenance, and reliable long-term operation of the MAN L21/31 engine.

Wednesday, 16 September 2026 11:23

MAN L21/31; Gasket (Code 300100)

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The gasket, code 300100, is an important sealing component used in the MAN L21/31 engine to create a reliable and leak-tight joint between adjoining surfaces of engine parts and assemblies. Depending on its particular installation position, the gasket may seal lubricating oil, fuel, cooling water, compressed air, gases, or another operating medium while compensating for small irregularities between the mating surfaces. During service, it can be subjected to pressure fluctuations, vibration, temperature changes, mechanical loading, and continuous contact with the relevant operating fluid, making correct material selection, dimensional accuracy, and installation particularly important. Proper preparation of the sealing surfaces and controlled tightening of the associated fasteners help achieve uniform compression and prevent premature deterioration. During maintenance, the gasket and mating surfaces should be inspected for leakage, damage, deformation, contamination, or other deterioration. By minimizing fluid leakage, contamination, and pressure losses, the gasket contributes to safe engine operation, efficient maintenance, protection of surrounding components, and the long-term reliability of the MAN L21/31 engine.

The fuel cam K 42150 is a precision timing and control component mounted on the camshaft of the Adriadiesel/Jugoturbina/Zgoda/Sulzer ZV40/48 engine and plays an important role in the mechanical control of the fuel-injection process. Its carefully defined cam profile converts camshaft rotation into precisely timed mechanical movement for the associated fuel-injection mechanism, helping ensure that fuel delivery occurs at the required point in the engine operating cycle. The geometry, angular position, surface finish, and dimensional accuracy of the fuel cam are therefore critical, as wear or deformation of the working profile can alter the movement of the associated mechanism and adversely affect injection timing and engine performance. During operation, the K 42150 fuel cam is subjected to repeated contact stresses, cyclic loading, friction, vibration, and long periods of heavy-duty service, making wear resistance, effective lubrication of the associated contact surfaces, and correct alignment particularly important. During overhaul, the cam profile and its mating components should be inspected for wear, pitting, scoring, surface damage, or dimensional deviations. By providing accurate and repeatable mechanical control of the fuel-injection mechanism, the K 42150 fuel cam contributes to correct injection timing, stable combustion, efficient engine operation, and dependable long-term performance of the ZV40/48 engine.

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