New noises
paulbnix
Posts: 632
I was cycling in Mallorca a couple of weeks ago during the thunderstorms.
The first day was torrential rain and we ended up cycling through deep streams crossing the roads accompanied by a faint smell of sewage. Thankfully that was the only time we got soaked.
The next day there was a creaking / cracking sound coming from the rear hub and a dreadful squeal from the rear brake.
We eventually figured out that the creaking / cracking sound was caused by sand particles trapped between the cassette and the freehub. It only happened in the biggest 3 sprockets and, on my SRAM cassette, these are a single block. The sound reduced over the week as the sand was crushed.
To try and stop the squeal I cleaned the wheel, sanded the braked blocks and toed them in.
It still squealed until we cycled through a shower and the usual grey grinding paste sorted the problem
The first day was torrential rain and we ended up cycling through deep streams crossing the roads accompanied by a faint smell of sewage. Thankfully that was the only time we got soaked.
The next day there was a creaking / cracking sound coming from the rear hub and a dreadful squeal from the rear brake.
We eventually figured out that the creaking / cracking sound was caused by sand particles trapped between the cassette and the freehub. It only happened in the biggest 3 sprockets and, on my SRAM cassette, these are a single block. The sound reduced over the week as the sand was crushed.
To try and stop the squeal I cleaned the wheel, sanded the braked blocks and toed them in.
It still squealed until we cycled through a shower and the usual grey grinding paste sorted the problem
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Comments
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Er um, OK?I don't do smileys.
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Parktools0 -
I was there last week and got caught in at least one monumental downpour - I now know why the roadside "torrents" (storm gullys) are so-named, as they filled 3-4 ft deep with fast flowing water very quickly indeed. Have to say, was glad I decided to hire rather take my own bike, though did feel a little sorry for the hire-shop guys who were having to clean them once "off hire". The day I collected mine they said they had 35 bikes to come back in, clean and set up! They were certainly looking forward to shutting up shop after this week after an apparently long season...Titus Silk Road Ti rigid 29er - Scott Solace 10 disc - Kinesis Crosslight Pro6 disc - Scott CR1 SL - Pinnacle Arkose X 650b - Pinnacle Arkose singlespeed - Specialized Singlecross...& an Ernie Ball Musicman Stingray 4 string...0
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You need to strip down, clean and re-grease wheel hubs and the bottom bracket assuming
you submerged them.
A water grease mixture is great for promoting rust - as I found out a few years back.0 -
I cleaned out the freehub when I got home - no more cracking noises - and the hub, freehub and BB are all sealed bearings. I’ll replace them as necessary.Zendog1 wrote:You need to strip down, clean and re-grease wheel hubs and the bottom bracket assuming
you submerged them.
A water grease mixture is great for promoting rust - as I found out a few years back.0
