Author Topic: clicking bottom bracket  (Read 33416 times)

ají

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Re: clicking bottom bracket
« Reply #45 on: December 22, 2016, 09:25:29 AM »
so do you think the clicking could be coming from the chain?

geocycle

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Re: clicking bottom bracket
« Reply #46 on: December 22, 2016, 09:41:47 AM »
so do you think the clicking could be coming from the chain?

It has to be a possibility and one that you could easily check by putting a new one on before you consider more expensive solutions.
 

ají

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Re: clicking bottom bracket
« Reply #47 on: December 22, 2016, 09:48:05 AM »
so do you think the clicking could be coming from the chain?

It has to be a possibility and one that you could easily check by putting a new one on before you consider more expensive solutions.


i certainly will try that. although i should mention that I can replicate the click by standing next to the bike on the LHS, tilting it slightly to the right, and pressing down on the edge of the left pedal with my foot. click happens as i remove the pressure
« Last Edit: December 22, 2016, 09:50:36 AM by ají »

Matt2matt2002

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Re: clicking bottom bracket
« Reply #48 on: December 22, 2016, 10:39:27 AM »
Does the EBB look in the wrong position?
Never drink and drive. You may hit a bump  and spill your drink

ají

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Re: clicking bottom bracket
« Reply #49 on: December 22, 2016, 11:20:21 AM »
I'm no expert but I can't see it. Can you take a photo non drive side?

here's mine
« Last Edit: December 22, 2016, 11:37:07 AM by ají »

geocycle

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Re: clicking bottom bracket
« Reply #50 on: December 22, 2016, 11:59:33 AM »
so do you think the clicking could be coming from the chain?

It has to be a possibility and one that you could easily check by putting a new one on before you consider more expensive solutions.


i certainly will try that. although i should mention that I can replicate the click by standing next to the bike on the LHS, tilting it slightly to the right, and pressing down on the edge of the left pedal with my foot. click happens as i remove the pressure

Well, that test would tension the chain so possibly.  Your test also puts strain on pedals, cranks, BB, and notoriously creaky areas like stem and handlebars (assuming you are holding these).
 

Matt2matt2002

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Re: clicking bottom bracket
« Reply #51 on: December 22, 2016, 02:23:28 PM »
Thanks aji

These shots any good?
Never drink and drive. You may hit a bump  and spill your drink

jags

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Re: clicking bottom bracket
« Reply #52 on: December 22, 2016, 03:17:09 PM »
bet it's the BB .if u riding a rohloff they have been know to fail ;)

ají

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Re: clicking bottom bracket
« Reply #53 on: December 22, 2016, 09:01:15 PM »
bet it's the BB .if u riding a rohloff they have been know to fail ;)

Anto, I think you have hit the grubscrew right on the head!
 

jags

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Re: clicking bottom bracket
« Reply #54 on: December 22, 2016, 09:26:44 PM »
i'm not  as stupid as i look  ;D ;D.

ají

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Re: clicking bottom bracket
« Reply #55 on: December 22, 2016, 10:31:30 PM »
so do you think the clicking could be coming from the chain?

It has to be a possibility and one that you could easily check by putting a new one on before you consider more expensive solutions.


i certainly will try that. although i should mention that I can replicate the click by standing next to the bike on the LHS, tilting it slightly to the right, and pressing down on the edge of the left pedal with my foot. click happens as i remove the pressure

Well, that test would tension the chain so possibly.  Your test also puts strain on pedals, cranks, BB, and notoriously creaky areas like stem and handlebars (assuming you are holding these).

I just showed a reputable mechanic. replicated the noise. He put his head down there and held the ebb and said the noise is coming from there as well as the vibration.

Matt2matt2002

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Re: clicking bottom bracket
« Reply #56 on: December 22, 2016, 10:35:18 PM »
So what will you do?

And, is mine in the correct position?
Never drink and drive. You may hit a bump  and spill your drink

ají

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Re: clicking bottom bracket
« Reply #57 on: December 22, 2016, 11:08:34 PM »
So what will you do?

And, is mine in the correct position?

I'm not sure what I will do Matt.
Your ebb appears to be in the right position. From what I can see the grub screws have the maximum amount of aluminum to bite down into. But you have a different eccentric to mine, yours appears a bit slimmer. David Simpson understands these things. All that said, this still doesn't explain the clicking. I think my next move will be to grease up the shell and eccentric as the community have suggested. I have the s&s grease which I understand works miracles! But all the mechanics I show are at a loss. Mind, eccentric bbs are not common in these parts. Shims have been suggested to me, I still have the aluminum can here. I was thinking of cutting it into strips and feeding them in to stop the freeplay. This concept has not been viewed favorably by the other bloggers! Im wondering, could a few strips of soft aluminum fed in between the shell  and the ebb damage the former?   

David Simpson

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Re: clicking bottom bracket
« Reply #58 on: December 22, 2016, 11:13:54 PM »
... David Simpson understands these things. ...

Not really. I only know that the gold eccentric works with any BB, and the black eccentric doesn't work with external-bearing BBs. The only reason why I know that is that I asked SJS about getting a black one for my Nomad (simply because I prefer the black colour).

- DaveS

ají

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Re: clicking bottom bracket
« Reply #59 on: December 22, 2016, 11:25:18 PM »
And that's probably all you need to know about EBBs, which is still a lot more than I do!