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Caliper Bolt seized - ideas? 850

posted by  MR2850 on  Tue Jul 11 05:26 CST 2006
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I'm currently changing the rear brakes on my 93 850 and I started on the passenger side and got as far as the bottom Caliper bolt - it won't move at all. I tried two types of anti-seize lubricants and even waited an hour - still nothing. I last tried a longer rachet handle and even used a rubber malet to aid and still nothing. Any suggestions other than heat? I don't want to have to drill this bolt out, but I'm starting to round the edges.








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    Caliper Bolt seized - ideas? 850

    posted by  Magilla on  Thu Jul 20 14:44 CST 2006
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    last visit: Thu Dec 4 12:53 CST 2008
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    Quite often a couple sharp hammer blows straight on head of bolt will loosen it up.Use at least 16 oz. hammer or brass hammer for less bolt damage.Works on most frozen bolts,from lug bolt to head bolt.








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    Caliper Bolt seized - ideas? 850

    posted by  someone claiming to be bl on  Tue Jul 11 09:40 CST 2006 [RELATED]


    If the car is driveable, you may run by the place you get your tires and have them hit it with an impact wrench. Doubt they'd charge you much if anything. As mentioned, heat is one way but unless you have a pretty big torch, you'll have problems getting it hot enough with the heat sink effect.

    bl








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    Caliper Bolt seized - ideas? 850

    posted by  KlausC on  Tue Jul 11 06:15 CST 2006
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    last visit: Fri Oct 24 10:15 CST 2014
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    One hour usually isn't enough time for the anti-seize stuff to work. You will need to buy at least two more bolts if you started to round them. I usually use a 12-16lb hammer (not rubber) to help it along. If you round the bolts too much, get a pipe wrench for better grip and use a real hammer.
    Make sure you don't get any oil or anti-seize on the bolt heads.

    Klaus
    --
    (V♂LV♂s 1995 854T, 1998 V70R)







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