The image above shows a valve spring fracture surface with the "characteristic ... The picture above is a farther-out magnification showing subsurface high-stress fatigue failure in a valve spring.

Hyundai told the NHTSA that the valve springs were damaged during manufacturing, which is handled by a third-party supplier, and that they can consequently “fracture while driving due to fatigue ...

On July 1, Toyota announced that 270,000 vehicles sold around the world, out of which 180,000 outside Japan might experience a powerplant problem that would cause their engines to stop while they ...

A recall notice issued by the Korean carmaker reveals that a total of 2,872 Telluride models built for the 2024MY between October 1, 2023, and December 6, 2023, have engine valve springs that ...

Fatigue cracking ultimately results in the valve springs breaking while driving, leading to a loss of motive power. The South Korean automaker couldn't rule out the possibility of a connecting rod ...

Further investigation into the cause of United Airlines Flight 328’s engine failure, which scattered debris over Broomfield last month, confirms “multiple fatigue fracture” on a fan blade ...

This video shows fatigue test conducted on springs with servo-hydraulic load frames-HA series from Zwick. The testing actuator is installed in the lower crosshead and the load cell on the upper ...