Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error

I really need help tacking down a weird vibration problem...
Sushiglobster
#1 Posted : 2/11/2012 12:59:25 AM
Groups: Newbie
Joined: 2/11/2012(UTC)
Posts: 4
Location: California
Hey guys...

I own a 2003 Tama Starclassic Maple kit. Dark Cherry Fade

The tom I'm having vibration issues with is my: 9x12

The vibration started a few years back and I have no idea what's causing it.

After first I thought it was just a bad head, so I replaced the head with another Clear G2. Vibration is still there.

I stripped the Star-cast mounting system off of it so it was just the shell with the heads and hoops/tension rods. Still the buzz remains.

I've noticed that it only happens towards the lower tuning range, when the top head is more loose. I can lightly tap the head and I can hear the nasty buzz. It's even coming through on my mics.

I even thought maybe it was coming from the sticker badge thing inside the inner hoop so I took it off. The buzz remains (and I'm super annoyed at myself for having stripped off the stickers from the hoop)

I have no idea what else to try. I was hoping maybe someone from the Tama side could help me with this. I'll see if I can capture the buzz sound with audio. It's a nasty sounding thing.

help!
TamaDudeNJ
#2 Posted : 2/11/2012 1:08:53 AM
TamaDudeNJ

Groups: Groupie
Joined: 3/5/2008(UTC)
Posts: 415
Man
Location: Bloomfield, NJ
Thanks: 6 times
Was thanked: 7 time(s) in 7 post(s)
If I'm not mistaken that year still had wood air vent grommets, did you check to see if they were loose? Do all of your tension rods have plastic washers under the metal ones? Perhaps at a lower tuning the rods may buzz.

Just some thoughts, hope it helps!



John W. ("J-Dub")
www.facebook.com/sundaybrave
www.youtube.com/user/durangodude01nj

6pc Tama SCM Platinum Fade
6pc Tama SCM EFX Blue Silk (shells signed by Jason Bittner!)
5pc Tama B/B White Silk
5pc Tama B/B Egyptian Night Burst
5pc Tama SCP Birch (project re-wrap)
4pc Tama Silverstar Satin Cherry
Sushiglobster
#3 Posted : 2/11/2012 1:17:39 AM
Groups: Newbie
Joined: 2/11/2012(UTC)
Posts: 4
Location: California
Yes. They do have the wooden air vents, but they are tight still. Not loose, so they are good to go. All my tension rods have a black washer with a metal washer on top.

Why would the tension rods start vibrating at lower tuning? Any idea? If I tap the head, while putting pressure on to one of the rods, I notice the buzz goes away...somewhat. How would I stop a tension rod from buzzing if it IS indeed the rod(s)?
TamaDudeNJ
#4 Posted : 2/11/2012 1:53:46 AM
TamaDudeNJ

Groups: Groupie
Joined: 3/5/2008(UTC)
Posts: 415
Man
Location: Bloomfield, NJ
Thanks: 6 times
Was thanked: 7 time(s) in 7 post(s)
Originally Posted by: Sushiglobster Go to Quoted Post
Yes. They do have the wooden air vents, but they are tight still. Not loose, so they are good to go. All my tension rods have a black washer with a metal washer on top.

Why would the tension rods start vibrating at lower tuning? Any idea? If I tap the head, while putting pressure on to one of the rods, I notice the buzz goes away...somewhat. How would I stop a tension rod from buzzing if it IS indeed the rod(s)?



Does it go away on that ONE rod? Maybe it's the head's metal ring vibrating under the rim? How low do you tune your 12"? JAW?
John W. ("J-Dub")
www.facebook.com/sundaybrave
www.youtube.com/user/durangodude01nj

6pc Tama SCM Platinum Fade
6pc Tama SCM EFX Blue Silk (shells signed by Jason Bittner!)
5pc Tama B/B White Silk
5pc Tama B/B Egyptian Night Burst
5pc Tama SCP Birch (project re-wrap)
4pc Tama Silverstar Satin Cherry
Sushiglobster
#5 Posted : 2/11/2012 2:27:29 AM
Groups: Newbie
Joined: 2/11/2012(UTC)
Posts: 4
Location: California
Nope....but upon close inspection, it appears that more than one of the tension rods are touching the diecast hoops. Would touching the die cast hoops cause such a buzz? It looks like both top and bottom have tension rods touching the hoops. The 12 is tuned bottom head tighter than top.
sandman
#6 Posted : 2/11/2012 2:54:04 AM
sandman

Groups: Groupie
Joined: 9/2/2006(UTC)
Posts: 1,079
Man
Location: Arlington, Tennessee
Thanks: 4 times
Was thanked: 12 time(s) in 11 post(s)
You need to do a process of elimination on the tom to find the culprit. It's a pain in the rump but wouldn't you rather know exactly where the problem lies? Remove all hardware, heads, hoops, tension rods, and lugs. Why, because you need to start at square one which is the shell. If plys are delaminatong, excess vibration can occur. Plus, when you are disassembling the tom, you can check each indidival component for cracks, breaks, or worn out gaskets. A lug casing with worn out internal parts can cause the spring to bounce around inside the casing. Take the stripped down shell, hold with one finger on the inside, give the shell a wrap with the butt of your fist and listen closely for excess vibrations. You will know when you hear it...if that's the case, shell is delaminating due to the glue breaking down between the plys. If no vibration is detected in the shell, look closely at all the lugs, hoops, etc.... The wooden vent holes can come loose. it's rare but it can happen. If it does, a toothpick with some Titebond Glue dabbed around the vent and clamped down via something heavy may fix it. I have had to do this before. Hope this helps...best of luck locating the rattle. Hope it's something simple....it usually is.
TamaDudeNJ
#7 Posted : 2/11/2012 3:11:47 AM
TamaDudeNJ

Groups: Groupie
Joined: 3/5/2008(UTC)
Posts: 415
Man
Location: Bloomfield, NJ
Thanks: 6 times
Was thanked: 7 time(s) in 7 post(s)
Originally Posted by: sandman Go to Quoted Post
You need to do a process of elimination on the tom to find the culprit. It's a pain in the rump but wouldn't you rather know exactly where the problem lies? Remove all hardware, heads, hoops, tension rods, and lugs. Why, because you need to start at square one which is the shell. If plys are delaminatong, excess vibration can occur. Plus, when you are disassembling the tom, you can check each indidival component for cracks, breaks, or worn out gaskets. A lug casing with worn out internal parts can cause the spring to bounce around inside the casing. Take the stripped down shell, hold with one finger on the inside, give the shell a wrap with the butt of your fist and listen closely for excess vibrations. You will know when you hear it...if that's the case, shell is delaminating due to the glue breaking down between the plys. If no vibration is detected in the shell, look closely at all the lugs, hoops, etc.... The wooden vent holes can come loose. it's rare but it can happen. If it does, a toothpick with some Titebond Glue dabbed around the vent and clamped down via something heavy may fix it. I have had to do this before. Hope this helps...best of luck locating the rattle. Hope it's something simple....it usually is.



All very good things to check on as well. Allthough, starclassic lug casings do not have internal springs. :)
John W. ("J-Dub")
www.facebook.com/sundaybrave
www.youtube.com/user/durangodude01nj

6pc Tama SCM Platinum Fade
6pc Tama SCM EFX Blue Silk (shells signed by Jason Bittner!)
5pc Tama B/B White Silk
5pc Tama B/B Egyptian Night Burst
5pc Tama SCP Birch (project re-wrap)
4pc Tama Silverstar Satin Cherry
Sushiglobster
#9 Posted : 2/11/2012 3:39:53 AM
Groups: Newbie
Joined: 2/11/2012(UTC)
Posts: 4
Location: California
I think I may have found the problem and I believe the Vibration/buzz sound is coming from some of the lugs. You know that hole that the tension rod screws in to....its a hole that slightly rises up from the lug itself....I think that is what's causing this headache. The buzz sounds very much like how it would sound if you were to hit a tom without the tension rods screwed in. the lug's tension rod inserts would vibrate. I think I'm seeing something similar happening but I don't know how to fix this because the buzzing occurs even though the tension rods are screwed in.

EDIT: Yup. Looks like those tension insert holes are to blame. I went around my 9x12 and looked for lugs where the insert hole was actually touching the lug itself. I loosened up the rod...then inserted my finger nail between the lug and the insert hole and screwed the tension rod back in. Once the rod was at a nice tension, the insert hole stayed in the middle of the lug rather than all the way to one side (where it touched the lug) and the vibration sound disappeared.


Wow. What a pain in the but...this entire time.
TamaDudeNJ
#10 Posted : 2/11/2012 2:15:04 PM
TamaDudeNJ

Groups: Groupie
Joined: 3/5/2008(UTC)
Posts: 415
Man
Location: Bloomfield, NJ
Thanks: 6 times
Was thanked: 7 time(s) in 7 post(s)
Originally Posted by: Sushiglobster Go to Quoted Post
I think I may have found the problem and I believe the Vibration/buzz sound is coming from some of the lugs. You know that hole that the tension rod screws in to....its a hole that slightly rises up from the lug itself....I think that is what's causing this headache. The buzz sounds very much like how it would sound if you were to hit a tom without the tension rods screwed in. the lug's tension rod inserts would vibrate. I think I'm seeing something similar happening but I don't know how to fix this because the buzzing occurs even though the tension rods are screwed in.

EDIT: Yup. Looks like those tension insert holes are to blame. I went around my 9x12 and looked for lugs where the insert hole was actually touching the lug itself. I loosened up the rod...then inserted my finger nail between the lug and the insert hole and screwed the tension rod back in. Once the rod was at a nice tension, the insert hole stayed in the middle of the lug rather than all the way to one side (where it touched the lug) and the vibration sound disappeared.


Wow. What a pain in the but...this entire time.



Happy you found the problem! Yep it was a PITA but hey, all better now. :)
John W. ("J-Dub")
www.facebook.com/sundaybrave
www.youtube.com/user/durangodude01nj

6pc Tama SCM Platinum Fade
6pc Tama SCM EFX Blue Silk (shells signed by Jason Bittner!)
5pc Tama B/B White Silk
5pc Tama B/B Egyptian Night Burst
5pc Tama SCP Birch (project re-wrap)
4pc Tama Silverstar Satin Cherry
sandman
#8 Posted : 2/11/2012 4:24:03 PM
sandman

Groups: Groupie
Joined: 9/2/2006(UTC)
Posts: 1,079
Man
Location: Arlington, Tennessee
Thanks: 4 times
Was thanked: 12 time(s) in 11 post(s)
Originally Posted by: TamaDudeNJ Go to Quoted Post
Originally Posted by: sandman Go to Quoted Post
You need to do a process of elimination on the tom to find the culprit. It's a pain in the rump but wouldn't you rather know exactly where the problem lies? Remove all hardware, heads, hoops, tension rods, and lugs. Why, because you need to start at square one which is the shell. If plys are delaminatong, excess vibration can occur. Plus, when you are disassembling the tom, you can check each indidival component for cracks, breaks, or worn out gaskets. A lug casing with worn out internal parts can cause the spring to bounce around inside the casing. Take the stripped down shell, hold with one finger on the inside, give the shell a wrap with the butt of your fist and listen closely for excess vibrations. You will know when you hear it...if that's the case, shell is delaminating due to the glue breaking down between the plys. If no vibration is detected in the shell, look closely at all the lugs, hoops, etc.... The wooden vent holes can come loose. it's rare but it can happen. If it does, a toothpick with some Titebond Glue dabbed around the vent and clamped down via something heavy may fix it. I have had to do this before. Hope this helps...best of luck locating the rattle. Hope it's something simple....it usually is.



All very good things to check on as well. Allthough, starclassic lug casings do not have internal springs. :)


Oops! Forgot about that. Thanks for the correction TamaDudeNJ. The lug insert sits atop a rubber stopper. Lug casings could crack abd vibrate. I have had it happen a few times.
Users browsing this topic
Guest
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.