Rare Bow Chainsaw [Restoration]

This restoration is on the first gasoline-powered one-man bow chainsaw ever produced. It was made by Precision Part Ltd. of Montreal, Canada in the 1940s. It took me 5 years to find 3 separate dilapidated chainsaw motors, 2 bow bars, 1 straight bar, and 2 chains just to source all the parts to restore one function chainsaw. Unfortunately, the most complete motor happened to also be completely seized, but that is just the way it goes sometimes. Adding further to the complications, the body of the chainsaw is rumoured to be made of out of a magnesium alloy that is so high in nickel and iron that it cannot be welded, so any major repairs that require welding, cannot be made. Furthermore, the massive chain that is used on this type of chainsaw is not made anymore and all available options potentially used to the point of being unsafe. This saw is so rare that I actually stopped trying to take it apart when I got deep inside the crankcase. I became worried that the risk of trying to hammer out s