ANALISA KERUSAKAN CONNECTING ROD PADA MESIN DIESEL KENDARAAN BERMOTOR

eka febriyanti

Abstract


Connecting rod and crank pin bearing are important components of automotive diesel engine. If these components failed, all of engine system would be shut down. In this research, these components failed during operation. Detail analysis of the failed surface showed that the failure in connecting rod and crank pin bearing was caused by improper lubrication system. Evidence of improper lubrication system was proved by the existence of black scratch and chipping on crank pin bearing which formed by high friction during operation. High friction affects performance of other pistons and therefore bolts of connecting rod experienced dynamic tension load. With repeated load during operation, crack initiated on the bolts and propagated until the bolt could not withstand the load anymore before they are finally broken.


Full Text:

PDF


DOI: https://doi.org/10.29122/jsti.v12i3.858

Refbacks

  • There are currently no refbacks.