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no charge at rpm 700 1987

posted by  PTR on  Thu Nov 25 15:11 CST 2004
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last visit: Sat Aug 14 12:33 CST 2010
[RELATED]

My 740 t volt meter showes only 10 volts above 4000 rpm. this is at night with the headlights on, of course and the dash lights go dim also. Below 4000 rpm charge is 13-15 volts(in the middle of the gauge?)








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    no charge at rpm 700 1987

    posted by  PTR on  Fri Dec 3 14:26 CST 2004
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    last visit: Sat Aug 14 12:33 CST 2010
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    Thanks for the help, found one brush very short and one slip ring very badly worn, I suspect the brush could not maintain contact a high RPM.
    --
    PTR ,740 t -145-http://volvoadventures.com/220spec.html








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    no charge at rpm 700 1987

    posted by  NJC on  Thu Nov 25 17:01 CST 2004
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    last visit: Sun Jul 24 13:42 CST 2011
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    PTR:

    This is sounding like an alternator problem.

    First do some basics though--check the connections at back of alternator. There's some good info on the FAQ here; that's also worth looking at.

    This article is decent too:

    http://www.misterfixit.com/alterntr.htm
    --
    Norm Cook Vancouver BC; 1989 745T 200,000KM








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      no charge at rpm 700 1987

      posted by  Evan R on  Thu Nov 25 19:20 CST 2004
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      last visit: Sun Sep 28 22:24 CST 2014
      [RELATED]

      Start by checking for loose belt - or REALLY likely, bad mount bushings
      --
      '73 142, '75 242, '75 245, '80 245, '86 244, '87 745T







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