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PostPosted: Fri Mar 15, 2013 9:04 pm 
retrobike rider
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Joined: Fri Aug 08, 2008 2:36 pm
Posts: 16747
Location: Yorkshire, England
I don't know the m951's just the 950's. Wouldn't m8nd the spare parts just to see how to pull m951 apart.

I believe he wants the bit the little screw goes in. Err the bit part 3 screws in to. The back bit should all pull off http://bernd.sluka.de/Fahrrad/Shimano/T ... 0_1996.gif


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PostPosted: Fri Mar 15, 2013 9:24 pm 
retrobike rider / Gold Trader
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Joined: Sat Jun 20, 2009 3:45 pm
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Location: Birmingham
pm me your addresses then fellas,

oh i will be nicking one of the rubber covers at the front, but that wont effect either of you


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PostPosted: Fri Mar 15, 2013 11:27 pm 
Old School Hero
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Joined: Tue Mar 24, 2009 9:26 am
Posts: 195
Location: The East Riding of Yarkshire
Huge thanks address on its way.

If it helps these brakes are not that bad to refurb. Ive been taking a few of these right down to component and polishing the bearings etc until they run super smooth. Its nasty bits like the one I need that let them down - poor metal seems to be the root of most problems.

regards Steve

PS If you want postage let me know otherwise I'll do a fiver for Red Nose


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PostPosted: Sun Mar 17, 2013 9:19 pm 
retrobike rider
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Location: Yorkshire, England
a ha, found this thread again :)
pm being sent :D

stevebe, I've fully rebuilt M950's (there is a thread on it)
How different are the M951's. I know they have a spring in them to aid return of the canti holder.
Do they still use loose thrust bearings (two washers around the ball bearings, two sets of).


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PostPosted: Sun Mar 17, 2013 10:03 pm 
Old School Hero
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Joined: Tue Mar 24, 2009 9:26 am
Posts: 195
Location: The East Riding of Yarkshire
Yes they do - A plastic housing disc holds tiny bearings and thin thrust washers are like flat races. I got new bearings and shims from a bearing company nearby. Yes the 951 and 960 have the spring assist I think didnt like it as it seemed like a quick fix by Shimano. If you haven't got it already this is interesting.

http://forums.mtbr.com/brake-time/how-s ... 78033.html


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PostPosted: Sun Mar 17, 2013 10:25 pm 
retrobike rider
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Joined: Fri Aug 08, 2008 2:36 pm
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Location: Yorkshire, England
I've completely taken M950 apart and rebuilt them to get the 'indexing' out. I just turned my plates around to get a nice smooth surface, just wondering if they ever changed the bearing setup at some point to say cartridge like Avid used on their high end. Not that I can see a reason to do that.


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PostPosted: Sun Mar 17, 2013 10:34 pm 
retrobike rider
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Location: Yorkshire, England
Nice link that, saves me rewriting my short how to in another post. I have all the pics ready to go in the Wiki, but I can just link to there now.
I would add though that using an allen key in the rear when assembling, to keep the axle still, makes tightening the two nuts easier. Also remember it all clamps up a bit more when actually screwed onto the frame so under tension the bearings (if you get what I mean, a bit like doing wheel hubs) so when on the bike you can get it right.


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PostPosted: Sun Mar 17, 2013 10:41 pm 
Old School Hero
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Joined: Tue Mar 24, 2009 9:26 am
Posts: 195
Location: The East Riding of Yarkshire
It looks like they didn't change the bearing setup looking at some 970s. Regarding assembly - I made up a simple bolt press like you although they still come apart with the soft metal. A local chap to me made up some oversize bearing shafts for the brake pad holders which stopped one set vibrating.


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