This recall is serious but hardly means that Honda or any manufacturer that issues a recall is a bad brand. https://www.usatoday.com/story/money/cars/2023/11/17/honda-recall-acura-pilot-ridgeline-odyssey/71617360007/
This recall is serious but hardly means that Honda or any manufacturer that issues a recall is a bad brand. https://www.usatoday.com/story/money/cars/2023/11/17/honda-recall-acura-pilot-ridgeline-odyssey/71617360007/
While this is true, some parts are so simple and have been designed/updated with so much experience and feedback, the defect can only be because of Quality control or Bad design.
Like if shopping around get them the material that is so cheap it is not the same, if the parts weren’t treated or finished like designed, if the tolerances are the issue or some other problems you would think should not be an after decades of engineering in engines.
I would appreciate more infos on if manufacturers have something like design rules that would say any rod bearing for cranks of X diameter,x oil grade made to spin to x RPM and up to X operating temperature needs to have X fitment and X metal treatment to avoid this issue.
There’s a lot to engine design, and something as relatively simple as bearings requires advanced knowledge in tribology and fluid dynamics.
You can design for a certain oil with a certain dilution rate but if the oil standards change or the real-world dilution rate is different, you may have failures due to cavitation. You can design for a certain dynamic clearance but if someone else changes the rod bolt spec or something as “simple” as thread fit changes, you may have failures.
Then there are things like manufacturer errors in fatigue strength or embedability or conformability, things that can only be known with a strict quality control regimen.
Thanks for clearing this out.
I figured there would still be enough documentation through previous engine generations (J series V6 engines have been built and upgraded since 1996) to have the main issues and main limits figured out for their purpose (fuel efficient urban driving and urban/crossover levels of towing capacity). Basically it would be fully optimised by then and only be tweaked around knowing anything else pushes the failure rate.