To maintain diesel engines in working condition there have been developed methods of diagnosing local crankshaft rotation developed by each cylinder. Inoperative cylinder has an angular velocity of rotation that does not respond the technical conditions. The measuring and computing complex consisting of personal computers, diagnostic complex «MotoDoc III», software and a set of sensors was developed for measuring. The results of the measurement and analysis of time parameters are displayed on the monitor screen. The software facilitates the recording of a signal, its processing and storage, as well as the ability to display the results. The method of diagnosis involves a number of stages: preparation of a diesel engine and equipment, the holding of general and local diagnosis, diagnosing. Thus, it appears possible to carry out condition monitoring of diesel engines by CIP method.
