keywords: Reliability, Crankshaft Failure, Weibull Distribution Method, Mean Time to Failure, Rank Regression.
In this study, the reliability of Mitsubishi S&U marine diesel engine crankshaft is analyzed using the twoparameter Weibull distribution method. The study involves the analysis of the failure times of Mitsubishi S&U marine diesel engine crankshaft. The mean time to failure (MTTF), failure rate and reliability were successfully computed using the values of the shape and scale parameters. The results of our analysis showed that the failure rate of the crankshaft in its early wear-out period is increasing steadily over time. The reliability of the crankshaft was found to be 84.696%. This result can be used to carry out timely and effective maintenance of the machineries, thus improve their operations and availabilities.