Camera for cylinder liner condition monitoring
24/12/2019
Marine engineering specialist Chris-Marine has announced the launch of its cylinder liner condition camera (LCC).The LCC unit has four built-in cameras to enable photography of the complete liner running surface, cylinder cover, lube oil injection area, exhaust valve, start air valve and injector valves. It is capable of in-situ cylinder condition documentation of two-stroke engines with bore sizes ranging from 480 mm to 980 mm, without the removal of cylinder cover or exhaust valve housing.
The LCC is made up of electronic components and batteries that are resistant to high temperatures, allowing for operation without lowering engine coolant temperature for most engine types. With fully charged batteries it is possible to document up to 14 cylinders and the time required per cylinder is approximately 15 mins. Tools for centring, inserting and extracting the camera and checking clearance at top dead centre (TDC) are included.
The images captured by the camera are used to evaluate cylinder condition parameters, such as the presence of cylinder honing marks and wave-cut groove extension, black lacquering and bore polish, the size of the cylinder wear edge and the cleanliness of ring lands. In addition, the pictures can be used to inspect exhaust valves, fuel injector valves, the lube oil injection area and start air valves. The LCC provides images from BDC (bottom dead centre) to TDC.
