edstraker123 Posted October 31, 2022 Share Posted October 31, 2022 (edited) I picked up a lovely SWB-1 off ebay yesterday and the action is playable but a bit high for my tastes. Looking at the neck it has too much relief so I was hoping a truss rod adjustment would sort it out. The rod is accessed at the neck end of the bass and looking from here I turned the allen key clockwise, but things seem to get looser rather than tighter. there is more resistance turning the key anticlockwise. Have i misinterpreted the righty -tighty rule ? Anybody got any thoughts or experience of the Chowny's ? I have in my head that Maruszycks worked differently and wondered if the Chowny's were the same. Edited October 31, 2022 by edstraker123 Quote Link to comment Share on other sites More sharing options...
MichaelDean Posted October 31, 2022 Share Posted October 31, 2022 Calling @Chownybass. Hopefully they can help. Quote Link to comment Share on other sites More sharing options...
3below Posted October 31, 2022 Share Posted October 31, 2022 (edited) I suspect the two way truss rod has been turned anticlockwise a fair way putting relief into the neck (I have built a bass with such a stiff neck that I have had to do this). Slacken the strings, turn it clockwise a bit at a time (1/8 turn?), re-tune, assess relief. Keep going until you are happy with it. It will go loose then eventually feel tight as you start to counter the string tension. Prior to having an unfortunate experience with one of my G&ls I never slackened the strings when doing truss rod adjustments. These days I do following the advice of Jon Shuker who replaced the G&L trussrod and fretboard. I really rate my SWB-1, playabilty 5*, build quality 5* etc etc .. Edited October 31, 2022 by 3below Quote Link to comment Share on other sites More sharing options...
edstraker123 Posted November 1, 2022 Author Share Posted November 1, 2022 Thanks Guys will give it a whirl. Quote Link to comment Share on other sites More sharing options...
basskit_case Posted Monday at 17:40 Share Posted Monday at 17:40 What size allen key is needed for truss road adjustment on a chowny swb bass? Feels like it might be a bit sizeable as all the ones I have are a little loose when inserted (ooer). Thanks Quote Link to comment Share on other sites More sharing options...
ezbass Posted Monday at 18:22 Share Posted Monday at 18:22 Not all truss rods follow the righty tighty rule, Maruszczyks are the reverse way around, for instance. If your seeing the adjustment you want in a particular direction, that’s the direction to use. Quote Link to comment Share on other sites More sharing options...
3below Posted Monday at 20:09 Share Posted Monday at 20:09 One of 4mm, 5mm or 6mm. Can't remember exactly which one since I have not adjusted my brace of them in ages. I do remember you might be better to use one of these, the truss rod slot is relatively narrow. Ebay has some Draper sets at knockdown prices. Your local hardware shop might be equally competitive. Quote Link to comment Share on other sites More sharing options...
itu Posted Monday at 20:28 Share Posted Monday at 20:28 Have to mention, that the ball-end is not the best to turn tight screws. Full length hex has more surface. Quote Link to comment Share on other sites More sharing options...
3below Posted Monday at 20:36 Share Posted Monday at 20:36 (edited) 9 minutes ago, itu said: Have to mention, that the ball-end is not the best to turn tight screws. Full length hex has more surface. Totally agree, I was just thinking about the angle the Allen key emerges at from the slot. Some judgement by the end user is required. Imo, the slot under the Chowny truss rod cover could do with being a few mm wider to make regular Allen key use easy. Edited Monday at 20:38 by 3below 1 Quote Link to comment Share on other sites More sharing options...
tauzero Posted Tuesday at 21:27 Share Posted Tuesday at 21:27 On 10/06/2024 at 21:28, itu said: Have to mention, that the ball-end is not the best to turn tight screws. Full length hex has more surface. And the ball end is a weak point which can shear if there's a lot of force on it. If the truss rod access slot is a bit on the short side, find what size allen key you need and cut down the short arm a bit so you can get the allen key in properly. 3 Quote Link to comment Share on other sites More sharing options...
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