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-   -   Bottom bracket - sounds like has sand (https://www.bikeforums.net/bicycle-mechanics/277204-bottom-bracket-sounds-like-has-sand.html)

donrhummy 03-13-07 07:56 AM

Bottom bracket - sounds like has sand
 
Ever since I rode near a beach it has sounded like my bottom bracket/bearings has sand in it, so I'm thinking it does. It's a constant scratching/sandy sound. What's the best way to get it out of there? Will I have to pull the whole thing apart? Is there a danger of damage if I don't? Can just lubing in there do it (and if so, what lube)?

Thanks!

Retro Grouch 03-13-07 09:08 AM

If you're talking about your Alpe D'Huez, you probably need to replace the bottom bracket. That requires special tools. I'm thinking that you might be better off taking it to a shop.

NoRacer 03-13-07 09:39 AM

Did you check it without the chain? Without the pedals?

Steev 03-13-07 10:24 AM


Originally Posted by NoRacer
Did you check it without the chain? Without the pedals?

A good point. Did you just ride near the beach or actually stop and put the bike down in sand? I can't see sand getting into the bottom bracket just by riding by, but getting onto the chain and around the pedals is quite possible.

donrhummy 03-13-07 11:42 AM

Hmm not sure but I've lubed and cleaned the chain (not with a brush though) many, many times since then and i still get it.

tellyho 03-13-07 05:08 PM

I've had this problem with sand in my fixed chain, and I can't get it to go away. I suspect it's your chain, but the only way to find out is to pull the crank.

jim10040 03-13-07 05:12 PM

Take off the chain and make sure the pedals are still when you turn the crank by hand. THEN you can isolate the noise. FEEL for the noise.

jim10040 03-13-07 05:14 PM

cont...If there is sand in the BB and it is making noise, you are grinding away the races and bearings.


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