help my tach wont work

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This topic has 3 replies, 3 voices, and was last updated March 19, 2012 at 10:59 pm by Gilles Blais.

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- April 11, 2006 at 4:01 pm #56673
  paul-wallace
  installed electronic ignition now tach wont-work.
  tryed every thing tech guys at “igniter” said to do ;
  resisters adjs ect still no tach. any ideas before i
  go back to points i miss my tach 🙁 🙁
- April 12, 2006 at 2:38 pm #60505
  66tigermk1a
  Participant
  This article might help
  
  http://www.tigersunited.com/techtips/th-ut/STOA.asp
- April 12, 2006 at 2:45 pm #60506
  66tigermk1a
  Participant
  Another article on the subject…
  
  http://members.shaw.ca/tsmit/tachmod/tachmod3.html
- March 19, 2012 at 10:59 pm #64506
  Gilles Blais
  I just fitted an Ignitor to a new replacement Lucas distributor without vac. advance which came with a basketcase SV. The tach worked on cold start but would cut out after a short run. I fitted capacitors which gave me a minimum reading of 2500RPM at idle no matter what I did with the adjustment screw. I finally fitted the needle at the "M" of RPM and moved it in a preload fashion to rest against a rigged stop pin at 0 RPM. That is the only way I could get things somwhat straightened out. I get a credible reading at low RPM’s after what the instrument’s reading is irrelevant.
  
  I had to modify the Ignitor’s mounting base to lower the pickup coil because it sat well above the magnetic rotor and gave no spark at all otherwise.
  
  Gilles
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