Has anyone ever repaired a cracked case by tig welding it? I know my left side case is cracked and leaking oil onto the stator and flywheel. I really can't afford a new or even a used case. Thought I might try to weld it instead. I believe the crack (or cracks) came from a chain breaking on a previous owner of the quad. I have replaced all seals except the one on the shift lever. Can't think of anything else it could be but a cracked case. Any help would be appreciated. Thank you in advance.