Cummins Diesel Engine Explodes on Dyno, Literally Throws Piston into Stands The 12-valve Cummins let go in spectacular fashion—in front of spectators. MotorTrend Staff Writer May 26, 2021 ...

In a nutshell, the term refers to a dowel pin failure inside a 12-valve or 24-valve 5.9L Cummins engine's timing gear ... In most cases, piston-to-valve contact is made, and in a matter of ...