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-   -   XT660X weird sound from front of bike (wheel?) ( https://www.xt660.com/showthread.php?t=26565)

SDBradfo 25-01-17 22:44
Quote:
Originally Posted by Simon (Post 227769)
A squeak could be pads binding or abosulte worst case the bearing has play on it and is allowing the wheel to go off centre and forcing the disc onto the pads.


Thanks for the reply.

The mechanic also mentioned brake pads. What does binding mean? I have a new set I am going to try change tomorrow. If they are binding, would a suit set of brake pads be the way to fix it?

Pleiades 25-01-17 22:54
Quote:
Originally Posted by SDBradfo (Post 227773)
The mechanic also mentioned brake pads. What does binding mean? I have a new set I am going to try change tomorrow. If they are binding, would a suit set of brake pads be the way to fix it?
In a word - no! New pads will probably make the problem worse. Binding brakes (when the pads are not fully releasing from the disc and continually rubbing) are either caused by sticky/corroded piston(s) or seized sliding pins in the caliper. If the pads were binding the disc would get a lot hotter than normal, the bike would likely be hard to push along, and the wheel would be difficult to rotate by hand. It also tends to make a screeching sound, rather than a metallic grinding.

SDBradfo 25-01-17 23:01
Quote:
Originally Posted by Pleiades (Post 227776)
In a word - no! New pads will probably make the problem worse. Binding brakes (when the pads are not fully releasing from the disc and continually rubbing) are either caused by sticky/corroded piston(s) or seized sliding pins in the caliper. If the pads were binding the disc would get a lot hotter than normal, the bike would likely be hard to push along, and the wheel would be difficult to rotate by hand. It also tends to make a screeching sound, rather than a metallic grinding.


Thanks.

So in your opinion it sounds more like a bearing issue? I have not noticed the wheel getting harder to turn. The noise is also not always 100% of the time.

Pleiades 25-01-17 23:20
Quote:
Originally Posted by SDBradfo (Post 227777)
So in your opinion it sounds more like a bearing issue?
Bit difficult to be 100% without seeing the bike, but yes - I'm pretty sure the wheel bearings are the most likely culprit based on your description of the symptoms.

Like I said, get the wheel off the ground and give it a spin - You'll soon know for sure then.

SDBradfo 26-01-17 00:31
Quote:
Originally Posted by Pleiades (Post 227780)
Bit difficult to be 100% without seeing the bike, but yes - I'm pretty sure the wheel bearings are the most likely culprit based on your description of the symptoms.

Like I said, get the wheel off the ground and give it a spin - You'll soon know for sure then.
Thanks for the help.

I will see what I can do. Will look at the pads tomorrow. Are they fairly easy to do? I've Googled it but could only see info on the rear pads. Mechanic will check if he has some bearings. Will ride it gently to him on Saturday. I would say the noise begun over a month ago so I assume one last ride would be ok!

Simon 27-01-17 19:21
One thing Yamaha got right was the calipers.

If they are binding I'd look at the pins and sliders, not had a issue yet with the pistons. Always seems to be the sliders on these calipers. Both front and rear on the R are nice and easy to strip down with no need for special tools.


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