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Old 10-10-13, 09:09 PM   #1
Shahmatt
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Shimano Nexus 3 IGH intermittent freewheel silence - Can it be a problem?

So I cleaned out my IGH wheel by hosing it with soapy water.

Before this happened, and when coasting, the IGH would always emit a clicking noise. I believe that this is typical of the freewheel.

After cleaning, I hear the clicking noise only intermittently. At very low speed coasting the IGH is almost silent and I only hear a light whirring. When coasting at higher speeds the clicking noise kind of kicks in properly.

The intermittent silences are a little worrying since it is not normal. I did not take apart the IGH when cleaning assuming that it was sealed and would not allow any water inside. But now I'm not sure. Could it be that some water has entered and has affected the mechanism? The hub works as normal so no worries there. But should I get it serviced just to be sure?
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Old 10-10-13, 09:26 PM   #2
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Hubs aren't completely sealed - just mostly shut up. Oil and whatnot can leak out (and thus water get in) around the shifter rod.

M.
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Old 10-13-13, 07:52 PM   #3
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So do you think the best way to deal with the issue is to open it up for servicing?
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Old 10-14-13, 05:12 AM   #4
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Originally Posted by MEversbergII View Post
Hubs aren't completely sealed - just mostly shut up. Oil and whatnot can leak out (and thus water get in) around the shifter rod.
No oil in a factory Nexus 3 - just grease. And Nexus hubs aren't sealed very well at the bearings.

So yeah, I'd open it up for clean and regrease.
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Old 10-14-13, 11:09 AM   #5
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No oil in a factory Nexus 3 - just grease. And Nexus hubs aren't sealed very well at the bearings.

So yeah, I'd open it up for clean and regrease.
Is this a complicated job? I'm wondering if I should try doing it myself, or if I should take it to a bike mechanic.
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