2 part neck / truss rod question

[shwashwa]

first is, what direction does the neck typically move in the summer? i have a bass with a dual action truss rod that seems to be tightened all the way now. the relief in the neck is just right, but i dont have any more room to go if i need it. if the summer usually causes more back bowing, then ill be ok because i can just go the other way.
the other part of the question is if the truss rod is maxxed and i need to tighten it more what can be done? i know the clamping trick and the washer trick. can washers be used on dual action truss rods? my luthier says he already clamped the neck over night and it didnt help. first off, i dont believe him, and second, if he did, over night might be too short. im bringing it to someone else next week. (this current guy is a BS artist). would removing the fingerboard and fixing whatever needs to be fixed internally be an option? im not worried about cost.

thanks

[shwashwa]

bump

[Musiclogic]

If your neck is bowing forward too much, and the truss rod cannot fix it, you will need to look at getting a new neck. You can have the FB removed, and have more room made for truss rod tightening, but this rarely does much, as 2 full turns on most Dual action Truss rods will create enough force to pop your fretboard off. the problem may be in the rod itself, or your neck is warping. It could also be too heavy of string gauge, but ripping off the FB and putting in a new rod won't help much, and CF rods will help little unless the Luthier can get the neck dead straight first.

Most DA truss rods cannot have a washer added to increase functional torque, as they do not work on the same premise as a SA(Ted McHugh style)truss rod, it's a completely different system.

[shwashwa]

thanks for the help. unfortunately this is a neck through bass, so new neck is not an option, and there are already carbon fibre rods in the neck..

Originally Posted by Musiclogic

If your neck is bowing forward too much, and the truss rod cannot fix it, you will need to look at getting a new neck. You can have the FB removed, and have more room made for truss rod tightening, but this rarely does much, as 2 full turns on most Dual action Truss rods will create enough force to pop your fretboard off. the problem may be in the rod itself, or your neck is warping. It could also be too heavy of string gauge, but ripping off the FB and putting in a new rod won't help much, and CF rods will help little unless the Luthier can get the neck dead straight first.

Most DA truss rods cannot have a washer added to increase functional torque, as they do not work on the same premise as a SA(Ted McHugh style)truss rod, it's a completely different system.