BB 1200 - truss rod help ?

[jimfriar]

I recently aquired an old '78 BB 1200 - knowing ahead of time that it has some issues - and I have all of them sorted out except for one. The brass head of the truss rod has pretty much been rounded off - except at the farthest point at the back. I can get a wrench on it - just barely - and not enough for it to grip and hold on for it to be turned. It really could use a half turn - and I'm wondering if anyone has any ideas ? It's a tight spot - if you own one of these you know what I'm talking about. It seems to need to be a 90 degree - Gibson guitar type wrench - but with a longer socket end. Any nut drivers or sockets that I have won't fit in the cavity. Help ??

 

[jcalo]

I know that this is a long shot,but I'll ask anyway. Do you know anyone who has the original issue socket wrench that came with the bass that may reach back far enough to grip it and possibly turn the 90 degrees you need. I have a 1979 BB-1200 with all the original hardware including that wrench. Perhaps you could contact Yamaha to see if that wrench exists.Good luck with your search.

 

[chuck norriss]

be careful on a truss rod that old the head may snap off
taht doesnt help at all does it
theres a way that machine shops remove or turn bolts with the heads off which may be similar to your problem
call grainger or mcmaster carr they might be able to help

 

[jimfriar]

I know that this is a long shot,but I'll ask anyway. Do you know anyone who has the original issue socket wrench that came with the bass that may reach back far enough to grip it and possibly turn the 90 degrees you need. I have a 1979 BB-1200 with all the original hardware including that wrench. Perhaps you could contact Yamaha to see if that wrench exists.Good luck with your search.

any chance you could send me a pic of that wrench ? [email protected] I would sure appreciate it. Jim