You can heat up that magnesium casting..the oil will come out of the porosity..then bevel the edges for the patch..weld it up...it will hold. Just gotta boil out the oil in the porosity.
Correct..even if you file a chain..if you don't start with the dullest link first..your wasting your time. This is why some shops remove a lot..got to get the chain back in balance..or other teeth just rub and burn.
Invest in an Oregon chain grinder..not that expensive..I have wore one out..bought a new one 3 years ago..don't fall for the clamp on filers..they are junk. Learn to use the Oregon grinder..do a good job..save you lots of money. Been grinding chains now for 42 years. No customers ever complain...
Go with double the weight you might pulling out..or it will heat up and quit. I bought one for my jd gator from Cabela's..it's a very tuff winch..I have
drug trees with it..after I chained my gator to another tree..