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All Journal IJOMEST : International Journal of Mechanical Engineering Science and Technology
Khairul Amri
Politeknik Negeri Padang, Padang

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Troubleshooting Analysis of the Cooling System in an Overheating Honda Jazz i-DSI Engine: A Case Study Andriyanto Andriyanto; Rudy Chandra; Fikri Arya Alhamdi; Khairul Amri; Hanif Hanif; Akmal Indra
International Journal of Mechanical Engineering Science and Technology Vol. 1 No. 2 (2026): IJOMEST: International Journal of Mechanical Engineering Science and Technology
Publisher : Asosiasi Diseminasi Rekayasa Dan Inovasi Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67795/ijomest.v1i2.23

Abstract

This study analyzes the troubleshooting process of an overheating cooling system in a single Honda Jazz i-DSI engine used as a practical training unit at the Heavy Equipment Engineering Workshop, Politeknik Negeri Padang. A case study approach with descriptive analysis was applied through identification of overheating symptoms, inspection of cooling system components, functional testing, examination of coolant hose configuration, repair, and temperature verification. The inspection showed no blockage in the radiator, the V-belt met the inspection criteria, the thermostat opened at 80°C and fully opened at 95°C, and no mechanical damage was found in the water pump. The coolant level was low, while radiator cap pressure performance and temperature sensor accuracy were not quantitatively verified. Further inspection identified reversed inlet and outlet radiator hose installation. After correcting the hose configuration and refilling the coolant, the maximum coolant temperature decreased from 116.25°C to 95°C and subsequently decreased to 85°C. The findings indicate that incorrect hose configuration was associated with overheating in the investigated case.
Co-Authors Akmal Indra Andriyanto Andriyanto Fikri Arya Alhamdi Hanif Hanif Rudy Chandra