[Lunims]

will that vibration unscrew them in such little time?

Not unscrew, rip them off from vibration and torque of the engine as it tries to spin on the platform to which it was bolted to. You can see the transmission didnt even move.

Or perhaps the rubber engine mounts got torn.

The crank and half the pistons are still attached to the tranny.

[kSmica]

Most likely reason for the failure was catastrophic failure of the lower engine block, combustion forces literally ripping it apart.

[CHEAPPoem]

Most likely reason for the failure was catastrophic failure of the lower engine block, combustion forces literally ripping it apart.

Exactly. I showed a motor engineer the video and he described what happened.

The block broke just below the chambers, the head was still attached. He said that tractor racers pull 2-3K HP out of a block intended for 500. Usually they use reinforcement bolts that go through the head into the lower block that prevent the head from blowing off - hard to see if those bolts exist in the video.

[Issuer]

Titan HD hay spear is one of the john deere 400 garden tractor attachments. It is a heavy duty hay attachment fits John Deere and has a strong frame design that will provide years of service without sacrificing your loaders lift capacity. Even more, the products are delivered within 3 working days.