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'01 S60 2.4T alternator S60 2001

posted by  someone claiming to be sevenvolvos on  Mon Jun 2 09:50 CST 2008 [RELATED]

Group:
The alternator in my '01 S60 2.4T just quit and the local very competent indie shop got another one. However they sent the wrong one. He says mine had a "clutch" sort of thing on the pulley end ands the replacement did not. I have not seen either one.

Question is what is that "clutch" and what is it for?

Thanks in advance,

-- S' V'








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    '01 S60 2.4T alternator S60 2001

    posted by  KlausC on  Tue Jun 3 04:21 CST 2008
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    last visit: Fri Oct 24 10:15 CST 2014
    [RELATED]

    Ouch. I have never heard of a clutch on an alternator. It always spins on the S belt and is never intended to change speed if the engine rpms go up or down.

    Why didn't your mechanic just change the brushes? Unless the bearings in the alternator failed.

    Klaus
    --
    I still miss my 164








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      '01 S60 2.4T alternator S60 2001

      posted by  howard14 on  Tue Jun 3 12:57 CST 2008
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      last visit: Thu Jan 31 18:36 CST 2013
      [RELATED]

      Diodes can fail Klaus,and windings can chaff and short.

      Howard
      isle of skye.








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        '01 S60 2.4T alternator S60 2001

        posted by  KlausC on  Tue Jun 3 15:39 CST 2008
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        last visit: Fri Oct 24 10:15 CST 2014
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        I agree. But windings and bearings seldom fail. The diode board, which contains the brushes can be replaced much easier than a complete alternator.

        But a clutch in the alternator? These new cars are getting to be too much for my wee brain.

        Klaus
        --
        I still miss my 164








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          '01 S60 2.4T alternator S60 2001

          posted by  howard14 on  Tue Jun 3 23:43 CST 2008
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          last visit: Thu Jan 31 18:36 CST 2013
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          Hi again KLaus.

          I belive that the adoption of the AC generator on vehicles was one of the best things that ever happened to motoring mankind, and I hope eventualy that computers on cars will be seen in the same positive way.

          Alternators seldom fail, but when they do, we are doomed these days,we wont get far.

          I recently saw a 'digger'that touched some overhead power cables with its boom sending a 220v charge to earth through the structure of the machine. The diodes that are only good for fifty volts or so, punctured their junctions easily with this discharge.

          The diodes are not in that box by the brush holder, that is the voltage regulater,another source of infrequent failure.

          The diodes, usualy nine of them, are located on heat sinks inside the body of the machine and are a bench job to change.

          As a poor ignorant Crofter it sometimes falls to me to rebuild them, but I dont do AC pumps!!! He He.

          Best regards as ever...
          Howard.
          Isle of Skye.







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