Japanese Conrad 'Beatle' Hollow Body Violin type Bass - Can neck be straightened ?

[guzzler]

Hello, I am wondering if there are some TB folks that have encountered Japanese 'Beatle' type basses with a neck that does not seem to respond to truss rod adjustment ? Maybe you can help me with your knowledge. The truss rod nut turns and gets tight but not much response if any to the adjustment. If I can get the neck to adjust I would like to get some better tuners for it also. Originally I think they are the type with the box cover on the back, if that makes sense. I am guessing they were like these in the photo. It is like the Conrad that is about 2/3 of the way down this page. brands

Thank you for your help

[mongo2]

I suppose you could try the old thin washers under the trussrod adjusting nut trick.

[guzzler]

Thank you, but I have tried adding 2 thin washers.

[mongo2]

I had to use more in a couple of cases.

[JLS]

Originally Posted by guzzler

Thank you, but I have tried adding 2 thin washers.

I'd suggest clamping the neck into a backbow, then tightening the
trussrod.

[mongo2]

Originally Posted by JLS

I'd suggest clamping the neck into a backbow, then tightening the
trussrod.

I assumed he had already done that (my bad)...if not, try it.

[xaxxat]

Originally Posted by JLS

I'd suggest clamping the neck into a backbow, then tightening the
trussrod.

+1

Dan Erlewine shows how:

Dan Erlewine - YouTube