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Author Topic: Speedo and Tach Needles Bouncing at Low Speeds or Idle  (Read 2404 times)

indy_nate8

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Speedo and Tach Needles Bouncing at Low Speeds or Idle
« on: September 01, 2016, 16:13:19 »
Have a 1971 280SL, the tach and speedo are bouncing at idle or lower speeds then are smoother as I increase speeds. Any suggestions before I replace the cables?
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Pinder

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  • USA, NJ, Edison
  • Posts: 1032
Re: Speedo and Tach Needles Bouncing at Low Speeds or Idle
« Reply #1 on: September 01, 2016, 17:41:58 »
try WD40 squirted down the cables
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1970 280 SL Light Ivory DB 670. 4 Speed manual shift no AC Limited Slip Diff.
1997 Corvette C5 Silver. automatic
2015 BMW 320i xdrive
2021 Mercedes GLS450 Silver

mmizesko

  • Pagoda SL Board
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  • USA, OH, New Albany
  • Posts: 995
Re: Speedo and Tach Needles Bouncing at Low Speeds or Idle
« Reply #2 on: September 04, 2016, 22:17:11 »
Lube and cables didn't really help.  I sent my tach and speedo to speedometer.com and the needles smoothed out.  Does your tach "howl" when it gets below 45 degrees?
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1970 280SL 291H Dark Olive
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