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Minifins Issue


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#1 not so mini dan

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Posted 21 August 2007 - 02:08 PM

I bought a nice shiny set of Minifins from Minisport a while back and have today gone to put them on only for the inner lip to come afoul of the friction material on the brake shoes.

I can see any way around this short of machining out the inner lip in a lathe.

Has anyone else encountered this problem? Is there a solution?

#2 minibarmy

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Posted 21 August 2007 - 02:21 PM

I bought a nice shiny set of Minifins from Minisport a while back and have today gone to put them on only for the inner lip to come afoul of the friction material on the brake shoes.

I can see any way around this short of machining out the inner lip in a lathe.

Has anyone else encountered this problem? Is there a solution?


These should fit straight on, machining them out will remove all the lining rendering them useless.

Have you backed off the shoe adjuster on the backplate reducing the shoes to their smallest diameter?

#3 not so mini dan

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Posted 21 August 2007 - 02:24 PM

No, ill give that a go :thumbsup:

#4 Jammy

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Posted 21 August 2007 - 02:55 PM

Sorry if this is an obvious thing to say, but you have backed off the pads with the adjusting bolt?

EDIT: And the handbrake isn't on/is slackened off?

#5 not so mini dan

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Posted 21 August 2007 - 04:14 PM

Handbrake isnt even attached jammy :sneaky:

And i tryed backing off the shoe adjustment screw/bolt but its seized :thumbsup:

I think ill be off to Somerford tomorow to get a new backplate assembly.

#6 minibarmy

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Posted 21 August 2007 - 10:24 PM

Handbrake isnt even attached jammy :sneaky:

And i tryed backing off the shoe adjustment screw/bolt but its seized :thumbsup:

I think ill be off to Somerford tomorow to get a new backplate assembly.


Very expensive way of sorting the problem out buying new assemblies.

Remove the shoes & springs holding them on, take out the wedged adjusting blocks & apply heat to the housing the adjusting screw fits into & it should undo, once out give the screw a good clean or replace with a new one (£3) make sure you apply plenty of copper ease when re assembling to stop it happening in the future.

With the screw wound fully out you will then be able to fit the minifins on.

#7 not so mini dan

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Posted 22 August 2007 - 01:13 PM

Thanks for the advice, im not sure if i have anything that can apply sufficient heat though, might have to invest in a blow torch.

#8 not so mini dan

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Posted 22 August 2007 - 03:46 PM

Hmmmm, got the blow torch but now i can't get a proper purchase on the bloody thing, mole grips slip off and i cant find a spanner that fits.

Im going to have to buy a special spanner >_<

#9 icklemini

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Posted 22 August 2007 - 04:44 PM

Im going to have to buy a special spanner

Yes a brake adjusting spanner will work a treat - unless the peg is buggered up now after the mole-grip experience...

#10 minibarmy

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Posted 22 August 2007 - 06:46 PM

Im going to have to buy a special spanner

Yes a brake adjusting spanner will work a treat - unless the peg is buggered up now after the mole-grip experience...


Plenty of heat & the use of mole grips should be enough to shift it, apply plenty of WD40 & leave it over night if your not having a go now then tomorrow try again with the heat.

Remember to remove the adjusting screw it needs to come towards you as they are fitted from the front!




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