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PostPosted: Sun Jun 23, 2013 12:11 pm 
Newbie

Joined: Mon Jun 10, 2013 11:39 am
Posts: 5
Hi there,

Firstly - I'm pretty new to bike maintenance, so forgive me if I use the wrong terms. I recently got hold of an old Saracen Terratrax, and the FH-M290 freehub is rather rattly. The noise and the resistance are noticable enough for me to want to repair or replace the part (although I think the physical effect on cycling is probably negligible).

The part looks like this:
Image

I removed the cassette to have a look at cleaning/oiling the freewheel body, but found no way of removing it from the hub. Spraying copious amounts of WD40 and dripping oil all over the thing seemed to reduce the resistance in the mechanism but the noise is possibly even worse now. I thought I might be able to remove the freewheel body and get at the bearings where they connect to the hub, to try to flush it out, but I'm now getting the impression this part can't be removed (although I can find spares online so I'm quite confused).

What's the cheapest way of resolving my issue, and having a nice silent rear hub? :)

Many thanks


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PostPosted: Sun Jun 23, 2013 2:01 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader

Joined: Sat Jul 21, 2007 9:48 am
Posts: 6980
Location: Bristle
to remove the freehub you need to pop the axle out, and then use a 10mm allen key


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PostPosted: Sun Jun 23, 2013 2:16 pm 
Newbie

Joined: Mon Jun 10, 2013 11:39 am
Posts: 5
Thanks for the reply. Perhaps I'm being stupid but I don't understand what I'd be doing with the Allen key. All I see is the hole for the axle?


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PostPosted: Sun Jun 23, 2013 2:21 pm 
Old School Hero

Joined: Mon Jun 17, 2013 11:07 am
Posts: 165
If you remove the cone and lock nut on one end of the axle and remove it, you should see an 8 or 10mm allen bolt inside the freehub body. They are factory greased inside so hosing it with WD40 will wash the grease out of it, they're not generally considered 'serviceable' iirc.


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PostPosted: Sun Jun 23, 2013 2:25 pm 
Old School Grand Master
User avatar

Joined: Thu Jul 19, 2007 7:18 pm
Posts: 3798
Location: Staffordshire
Once off, you could try soaking it in something like Landrover diff oil.

If that doesn't help, replace the part. Probably worth using new ball bearings when you rebuild the hub as well.


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PostPosted: Sun Jun 23, 2013 4:01 pm 
Retro Guru
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Joined: Mon Mar 28, 2011 9:29 pm
Posts: 1877
Location: Somerset
hopz wrote:
Thanks for the reply. Perhaps I'm being stupid but I don't understand what I'd be doing with the Allen key. All I see is the hole for the axle?


The freehub body is held to the hub with a hollow (for the axle) bolt. once the axle is removed, an allen key is used to remove the bolt & freehub body.


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