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Popping noise while not pedaling

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Popping noise while not pedaling

Old 05-17-04, 08:04 AM
  #1  
gabiker
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Popping noise while not pedaling

I was wondering if anyone has ever had a similar problem. I developed a popping noise when I stop pedaling and it goes away as soon as I start again. I think that rules out the BB and I can't get it to do it while I have it on a stand so it has to be under a load.

Any help would be appreciated.

Philli...
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Old 05-17-04, 08:47 AM
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Is it consistent? Or does it happen when you turn the bars? The only things still moving when you stop pedalling are the freehub body, and the the wheels. If you hear this while moving the bars it could be the headset, or the cable housing flexing against the frame, reason I say this is shimaNO SLR housing will do this.
Also you may have something jammed in your brake pads that touches the rim as it rotates.
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Old 05-17-04, 08:57 AM
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Originally Posted by Hunter
Is it consistent? Or does it happen when you turn the bars? The only things still moving when you stop pedalling are the freehub body, and the the wheels. If you hear this while moving the bars it could be the headset, or the cable housing flexing against the frame, reason I say this is shimaNO SLR housing will do this.
Also you may have something jammed in your brake pads that touches the rim as it rotates.
It started out be inconsistent, but yesterday it became very consistent. It is definately coming from the back wheel area and it doesn't get better or worse when turning the bars.

Thanks,
Philli
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Old 05-17-04, 09:28 AM
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Is the little nut holding the valve loose?

Sometimes the longer stemed valves like to move around making the sound you described, then is "drowned out" by pedaling.

Is the sound rythmic, as in sync with the rotation of the wheel?

Hope this helps,

ehenz
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Old 05-17-04, 09:30 AM
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Originally Posted by ehenz
Is the little nut holding the valve loose?

Sometimes the longer stemed valves like to move around making the sound you described, then is "drowned out" by pedaling.

Is the sound rythmic, as in sync with the rotation of the wheel?

Hope this helps,

ehenz
Actually it is and it is a long stem on top of that. I will check it out and let you know.

Thanks,
Philli
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Old 05-17-04, 09:40 AM
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I can't really tell for sure what's making your popping noise, but it seems possible that it's coming from your hub bearings.

If you clean the rear hub and put in new bearings and new grease, the problem might go away.
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Old 05-17-04, 04:50 PM
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If the noise is only while coasting, it could be the freehub needs lubing.
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Old 05-18-04, 10:14 AM
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How are your wheels? My old trainer which I just put into service as a commuter sounds terrible. I can repoduce the sound by removing the front wheel and leaning on it. Last night I lubeded the all spoke intersections.

Good luck.
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Old 05-18-04, 10:19 AM
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it could be your one of your pedals because they pop when the bearings are shot or loose
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Old 05-18-04, 11:17 AM
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Originally Posted by damian2341
it could be your one of your pedals because they pop when the bearings are shot or loose
I just took it back to the dealer since it is all under warranty. The bike only has about 150 miles on it and I was just trying to get some idea's on what it could be before I took it. He thinks it is in the free hub or hub, but has a call into the mfg.

I will let everyone know what it is when I find out just for future reference, but it is definately in the rear wheel.

--Philli
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Old 05-18-04, 01:48 PM
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o ok then its probably the freewheel i had that happen, its probably just dirty
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