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

[Krooser]

Without the flat bar straps the leverage of tension on the bolts at the bottom of the mast is Phenomenal!

The Flat Bars work like the Strut rods work on your lower control arms.

View attachment 1938088

View attachment 1938094

Maybe but not enough of a triangle to make much strength.

I think I have a handle on triangulation... unless you have some kind of opinion on my fab skills on this old dirt car chassis I have redone

Sorry forbthe upside down photo

 

[Triplegreen500]

It doesn't take much to topple the mast on the hoist.

It also doesn't take much to properly triangulate it.

But I guess you're smarter than EVERY engineer who designed a cherry picker hoist.

 

[thehemikid]

I'm not a mechanical engineer.

I've guesstimated the distance your engine was from the fulcrum (red line I drew in a previous post).

Without the straps there is an unnecessary class 1 leverage vertical load on the base bolts, that shows now in the twisted ~2" x 4" flat plates at the base.

If your motor was 6' from the base.

 

[b-body-bob]

Maybe but not enough of a triangle to make much strength.

I think I have a handle on triangulation... unless you have some kind of opinion on my fab skills on this old dirt car chassis I have redone

You be you, but if it was me I'd take the L on this one and move on.

 

[QuickBpBp]

Wow. One reason I stopped using those decades ago. One reason why I just use my John Deere with the loader bucket off. Just push or pull the joy stick around with zero chance of tipping… I just moved from one storage unit to another and had 8 big block engines 4 with transmissions still attached. No issues. Had NO-ONE was hurt!