Allis 715b bushings

There is a reason why when the original design was evaluated that a 2" pin was specified for the boom to loader bucket.  The solutions to undertake an egged out hole are multiple.  In the end - what needs to be decided is a repair solution relative to how the machine will be used and how it is to operate and importantly how much you want to sink into a machine that's approaching 50 years given current economics.  It might also be worthwhile to consider serviceability of the bucket to the boom geometry when using a smaller 1.50" pin and whether that will withstand the dead load and stress moment on the PIN stock selected.  A pin that is bent because it is undersized can be a pain in the _ss when there is a need to remove it - fwiw. 

Edited by orangeman - 19 May 2024 at 7:32am

When I stopped and talked to local shop on line boring the estimate I received was - “ that would be a lot”

Not many other options- I might have found one 3 hours a way. But using dom and going to 1 1/2 pins might also last me a lifetime.
Internet says a stick is $95 plus shipping.

Back working on pin rebuild.
Took me a couple months to get a windshield installed given the weather.

Would welding a 5ft stick of 2” Dom into the loader bucket pins- ensuring straight and square as bushings and then using 1 1/2 pins. Would this work? It would avoid the cost of line boring.

Thanks for the help from you both.
This place looks to have stressproof stock.
https://www.speedymetals.com/p-1597-2-rd-stressproof-or-equivalent-cold-finished.aspx

I would like to do the pins on the dipper where the dog bone attaches to the loader arm.

Can either of you give me that pin size?

Do you know the dimensions of the lower pins? I will get those and then try to bushing out from there.

Finally got my 715b operational again.
Now during the winter months I think I will rebuild the lower bucket pins. The side with the large bolt instead of pin egg shaped the bucket side quite a bit.

Where are people getting pins and weld in bushings?