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  #1  
Old 03-21-2014, 10:56 AM
HollowmanPL HollowmanPL is offline
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Default My problem with Iron Cobra's :(

I've bought IC twin and I found there's a little too much loose on the right foot.
Is it a bearings issue or what? I tried to get fun with the spring but it didin't help.


https://www.youtube.com/watch?v=vu17...ature=youtu.be
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  #2  
Old 03-21-2014, 04:42 PM
drumming sort of person drumming sort of person is offline
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Default Re: My problem with Iron Cobra's :(

Is that a new pedal, or did you buy it used?
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  #3  
Old 03-21-2014, 05:04 PM
HollowmanPL HollowmanPL is offline
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Default Re: My problem with Iron Cobra's :(

used, it's in quite good condition but not perfect
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Old 03-21-2014, 05:17 PM
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larryace larryace is offline
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Default Re: My problem with Iron Cobra's :(

Tighten every fastener you can see, especially the one that holds the beater assembly to the horizontal shaft.
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Old 03-21-2014, 05:41 PM
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GRUNTERSDAD GRUNTERSDAD is offline
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Default Re: My problem with Iron Cobra's :(

From what you are describing it sounds like the hinge or bearings on the footboard.
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  #6  
Old 03-22-2014, 10:41 AM
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sdedge sdedge is offline
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Default Re: My problem with Iron Cobra's :(

well i think its a bearing problem, just buy good skate bearings ,they are easy to install in the IC ,i think you need 6 or 8 bearings.I replaced mine with beter ones , and works super.
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Old 03-22-2014, 12:52 PM
HollowmanPL HollowmanPL is offline
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Default Re: My problem with Iron Cobra's :(

thank you for your responses
it may be stupid but...
can someone please show me a pcture of how these bearings should look like and where there are exacly placed in IC?
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  #8  
Old 03-22-2014, 01:22 PM
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Default Re: My problem with Iron Cobra's :(

Quote:
Originally Posted by HollowmanPL View Post
thank you for your responses
it may be stupid but...
can someone please show me a pcture of how these bearings should look like and where there are exacly placed in IC?
well there are the chrome protectors over the bearings ,just release the screws and you can see the bearings and can remove them. in the middle there is a black ring you can loosen that to get to the other bearings.
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Old 03-24-2014, 12:18 AM
HollowmanPL HollowmanPL is offline
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Default Re: My problem with Iron Cobra's :(

is it this?:



i've got the old version of IC RG
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  #10  
Old 03-24-2014, 02:10 AM
drumming sort of person drumming sort of person is offline
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Default Re: My problem with Iron Cobra's :(

My guess is the hinge where the footboard meets the heel plate.
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  #11  
Old 03-24-2014, 03:13 AM
bud7h4 bud7h4 is offline
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Default Re: My problem with Iron Cobra's :(

I don't think the bearings would have anything to do with all that lateral movement in the footboard. It might be possible to damage the footboard hinge by pulling back (up) enough on a pedal, like if it's not attatched to the cam at the time.
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  #12  
Old 03-24-2014, 10:07 AM
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Default Re: My problem with Iron Cobra's :(

Quote:
Originally Posted by HollowmanPL View Post
is it this?:



i've got the old version of IC RG
Well i don't no about the older version ,ive got the newer one .

so sorry can't help you there?
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  #13  
Old 03-24-2014, 10:47 AM
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Default Re: My problem with Iron Cobra's :(

The hinge between the foot board and the heel plate is worn out. In the video when you shake the pedal side to side, the cam does not move. The bearings that you circled in your picture are not the issue If you were having bearing problems that resulted in the side to side motion, the cam and beater assembly would move side to side also, as they are attached to the shaft that rests in the bearings.

There may be bearings in the hinge, or it may be a pin. I am not completely familiar with the IC construction as I have not owned one to disassemble. Either way, the hinge was not born in there. Look closely and see if there are any screws that hold the assembly together. If so, first check to see if they are loose. If not, the hinge is worn. If there are no screws, it may be pressed in. This could prove to be more difficult to remove.

If anyone wants to loan me an IC for the day I would be happy to disassemble it to get a definitive answer!
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  #14  
Old 03-29-2014, 04:50 PM
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TonyAncheta TonyAncheta is offline
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Default Re: My problem with Iron Cobra's :(

Quote:
Originally Posted by MrInsanePolack View Post
The hinge between the foot board and the heel plate is worn out. In the video when you shake the pedal side to side, the cam does not move. The bearings that you circled in your picture are not the issue If you were having bearing problems that resulted in the side to side motion, the cam and beater assembly would move side to side also, as they are attached to the shaft that rests in the bearings.

There may be bearings in the hinge, or it may be a pin. I am not completely familiar with the IC construction as I have not owned one to disassemble. Either way, the hinge was not born in there. Look closely and see if there are any screws that hold the assembly together. If so, first check to see if they are loose. If not, the hinge is worn. If there are no screws, it may be pressed in. This could prove to be more difficult to remove.

If anyone wants to loan me an IC for the day I would be happy to disassemble it to get a definitive answer!
I am working through this now. The problem, as I, too, see the footboard flopping about in the video, is in the foot plate.

The action consists of an axle rod,
two steel collars (suspended in the foot board with two rubber O-rings),
And two composite flanged bushings inserted into the steel collars, and so float on the axle rod.

Those bushings are the problem.

Trying to buy them from your local TAMA dealer may be like buying hen's teeth. So I am going to replace mine with radial bearing from bocabearings.com. The part number is: MR116-2GS. You will need two bearings for each hinge.

These should be a direct fit, but if the OP would like to wait until I have completed the repair, I am happy to post the result.

Why TAMA did not use radial bearings in the first place is a wonder to me. A fiber composite bushing seems a bit inappropriate for that part of the pedal; especially when you consider the modern drummers' like for the heel-toe technique. Those bushings take quite a beating.
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Last edited by TonyAncheta; 03-29-2014 at 04:54 PM. Reason: Misspelled the souce for the bearings.
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  #15  
Old 03-29-2014, 04:52 PM
HollowmanPL HollowmanPL is offline
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Default Re: My problem with Iron Cobra's :(

I have bought some normal berings (not made in china like the ones that are in pedals and skateboards these days) in bearing shop and replace the used ones in the IC.
not it works fine
thanks!
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