Engine analyzer

An engine analyzer comprising:

• detecting means including a plurality of sensors which when engine analysis is to occur are connected to given portions around an engine such as an internal combustion engine for detecting the characteristics of the respective given portions as electric signals;
• engine drive control means including an auxiliary electric power source, which when engine analysis is to occur is connected from outside to an engine starter motor as the power source for said engine starter motor which is independent from the battery connected to the engine, and a control circuit capable of controlling a drive circuit of said engine starter motor from outside;
• signal processing means for converting electric signals fed from said detecting means and said engine drive control means to indicate the characteristics of the respective portions of the engine into signal aspects to be easily processed;
• centralized control means including a computer for successively operating and processing the outputs fed from said signal processing means according to a preset program, comparing and determining said operation results with values preset in accordance with the respective signals and feeding command signals for the inspection and diagnosis of the engine;
• and
• diagnosis indicating means being operable by the command signals fed from said centralized control means, including means for displaying each portion being inspected on a graphic display of a planar pattern, means for successively instructing the predetermined work procedures to an operator and means for giving the results of diagnosis of predetermined items of inspection.