Broken top motor mount repair

[montuckymatt]

Well, I was going to pull my heads on my 37 U model and found a cracked motor mount. I thought my bike seemed to be vibrating more last time I rode it.

It was a clean brake. Suprising because i took my time and made sure to shim the top motor mount. Frame is an older Corbin 1937 repop.




I know I can just buy a new setup from v twin but am hoping to do that next winter when the bike is getting completely torn down for a makeover. I just got a TIG setup for Christmas. I'd like to repair this myself. I plan on practicing quite a bit before attempting to repair it. Any advice on prep/method? Is this a common break on repop frames?

[Dragstews]

Be bout the same work involved to go ahead and weld on a new replacement mount ..



Wouldn't it ??

[montuckymatt]

Yeah, but I'd save myself some $$$$.

[Dragstews]

I see, said the blind man to his deaf wife ...

[rockman96]

I'd go the repo mount way myself, I don't see how it could break the bank. That said, if'n I was gonna repair that one, I'd grind a ramp on each mating edge to fill with weld when butted. To top it off, I would shape a piece of 1/8 sheet to conform and cover the repair, overlapping the repair about an inch on each side, and weld it over. Maybe drill a couple holes in each piece to fill-weld to whats underneath. If you just butt weld and let it go, it will waste no time breaking again. Even doing what I suggest might break later.