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Ultegra Rear Calliper Question

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  • 25-02-2011 2:45pm
    #1
    potsy11
    Registered Users Posts: 474 ✭✭


    I recently purchased a 2nd hand road bike and I am in the process of deep cleaning and re condtioning it (first timer, new experience in order to know my way around the bike etc).

    I have taken the rear Ultegra Calliper off and after a deep degreasing the sping or recoil of the unit is stil not great. The unit is approx 5-6 years old and the previous owner would have given it heavy use.

    Question: can the coil / spring be replaced - and if so any suggestions.

    Thanks

    Potsy

    PS..i am sure there will be plenty of questions from me when I get to the deraileurs.


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    #2
    jiffybag
    Registered Users Posts: 193 ✭✭jiffybag


    This is an all too common problem with older Ultegra calipers . No easy repair . Parts not really available for this caliper anymore. Probably best to replace it .


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    #3
    victorcarrera
    Registered Users Posts: 1,059 ✭✭✭victorcarrera


    Put them in diesel oil and try to loosen them up.
    If there is no free play in the pivots they are probably OK and just clogged with dried up muck. Check that the end of the return spring slides freely in the grove on one of the arms and put a little grease on it.

    A diagram to help you with dismantling and assembly.

    http://www.shimanoservicecentre.co.uk/SSC/shimano_parts/Brakes/BR-6500.PDF


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    #4
    potsy11
    Registered Users Posts: 474 ✭✭potsy11


    victorcarrera wrote: »
    Put them in diesel oil and try to loosen them up.
    If there is no free play in the pivots they are probably OK and just clogged with dried up muck. Check that the end of the return spring slides freely in the grove on one of the arms and put a little grease on it.

    A diagram to help you with dismantling and assembly.

    http://www.shimanoservicecentre.co.uk/SSC/shimano_parts/Brakes/BR-6500.PDF


    I'll give this a go tonight. By Diesel Oil do you mean the engine oil that you buy in the Service Station?

    Cheers


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    #5
    victorcarrera
    Registered Users Posts: 1,059 ✭✭✭victorcarrera


    potsy11 wrote: »
    I'll give this a go tonight. By Diesel Oil do you mean the engine oil that you buy in the Service Station?

    Cheers

    Its the diesel fuel you buy at the pump not the bottled oil.
    There may be a minimum 5 Euro (approx 3.5 L at todays prices) purchase though, but it is always handy to have some spare for cleaning chains etc.


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