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Rust... what do you use to unstick stuck nuts?

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    Rust... what do you use to unstick stuck nuts?

    I am trying to disconnect the differential from the driveshaft but the four nuts that hold them together seem to be rusted solid. I have tryed a little WD-40 to try and get a little something in there, but so far no good. What should I try, brute force(a breaker bar), or what?

    thanks guys

    #2
    try lots of heat...i had a little propane torch and a lot of PB blaster to get off the exhaust manifold to downpipe nuts.

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      #3
      Liberal amounts of PB blaster, let it soak overnight.

      -Charlie
      Swing wild, brake later, don't apologize.
      '89 324d, '76 02, '98 318ti, '03 Z4, '07 MCS, '07 F800s - Bonafide BMW elitist prick.
      FYYFF

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        #4
        I've loosened those on a couple cars but never seen them rusted.

        I just put the car in gear and put the ebrake on. Then I hang a box wrench (what are they, 19mm?) and get to the side of the car and use a foot to loosen it. Works like a charm.

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          #5
          I was thinking heat, from a torch, but as a last resort. I don't have any PB blaster in the house, even though I did, so I may have to go buy some. And I think I am going to try a little brute force a.k.a what bill wrote. Thanks guys

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            #6
            I have found that an oxy acetylene torch works quite well for loosening stubborn bolts and nuts.



            Nick

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              #7
              its all about the heat. jsut heat em up for a couplemo minutes and they will loosen right up. try not to use a breaker bar cause you run the risk of sheering the bolts off.

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                #8
                Originally posted by PeterCip
                try not to use a breaker bar cause you run the risk of sheering the bolts off.
                I did that once in our Jeep, trying to get the seats out, and presto i took the head right off the bolt. However, in my situation it does not matter because it is a parts car and is going to the junkyard in about 2 weeks. Come over to the community board to see what is happening to the car before it goes to the junkyard.

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                  #9
                  problem "solved". a little grinder action to wear the bolts into nothingness, and a chisel and hammer and presto they come off in about 2 hours work. stupid rust. surprisingly the threads on both the nut and bolt were pretty clean!

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                    #10
                    Originally posted by Charlie
                    Liberal amounts of PB blaster, let it soak overnight.

                    -Charlie
                    One of the greatest substances ever invented.

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                      #11
                      PB Blaster or liquid wrench, whiever is handy. Then just let them chill.

                      Then LOTS and LOTS of VIOLENCE.
                      Im now E30less.
                      sigpic

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                        #12

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