Well THIS was exciting... and unexpected... and dangerous!!!

[Kern Dog]

I borrowed a home made engine hoist from a friend that seemed robust but had a small hydraulic ram. As I pulled a 400 and 727 over the core support, the ram bent like a taco similar to this:

The engine and trans slammed to the floor!

By the way, I didn't not mean THIS taco....

 

[DeltaV]

By the way, I didn't not mean THIS taco....

Yeah, right!!

 

[Krooser]

What ram?

 

[Pops1967GTX]

Do I see a cigarette in your picture?

There's nothing logical about smoking. At any point.

https://va.media.tumblr.com/tumblr_subzzwHMyz1y10rdd.mp4

 

[1KoolBee]

I’m glad no one was hurt! Hopefully you can salvage most of the engine parts.

Flat stock is very strong in tension, just not compression. Old bridges use flat stock (large scale) in the same application. Looking at the orientation of the hoist the straps are always under tension, as previously noted it takes the stress off of the mounting bolts. Without the straps it’s trying to twist the nut/bolt head off.

The fact the bolts were undersized is a double whammy.

View attachment 1945898

Exactly! Chicom pickers and engine stands have little safety margin. Don’t compromise the structure by jury rigging it. Those straps can probably support 1000 lbs in tension. The fact that your picker failed on a 318 should be cause for pause and reflection!