You've shown that the upper half of the black coupler is useless and what he has is going to be an out of balance mess.
That weld is cold, almost looks like it was "aluminum welded" vs TiG welded using one of those special rods that works with MAPP gas. That weld makes that assembly a writeoff. Can't be fixed for service.
Next go...cut the black coupler in half to where only two cinch bolts are used and a sliver above the factory gap.
Groove the spline piece and the new baby two bolt coupler for welding HALF way around, like its amputated friend was joined.
Get it TiG welded, several passes, then chuck it in a lathe and fillet the weld so it's balanced and there are no stress points (sudden geometry changes...ridges, etc). You may need to take it to a machine shop and a competent welder vs guys who do joints on irrigation stuff.
That weld is cold, almost looks like it was "aluminum welded" vs TiG welded using one of those special rods that works with MAPP gas. That weld makes that assembly a writeoff. Can't be fixed for service.
Next go...cut the black coupler in half to where only two cinch bolts are used and a sliver above the factory gap.
Groove the spline piece and the new baby two bolt coupler for welding HALF way around, like its amputated friend was joined.
Get it TiG welded, several passes, then chuck it in a lathe and fillet the weld so it's balanced and there are no stress points (sudden geometry changes...ridges, etc). You may need to take it to a machine shop and a competent welder vs guys who do joints on irrigation stuff.
