Mods you can move this if needed?

I will start posting the ongoing work on my 40H. Or you can tell me to go away??

Pulled the covers and cleaned them up in the blaster.Used glass.Milled the locknut area flat on the advance arm.Nut only hit on one side,looked funny?

On to the rear cover,Big crack!! Anyone welded on this before? What rod? Preheat?






Thanks for the input and help!
Randy