Register now to get rid of these ads!

Technical Old Dixco tach

Discussion in 'Traditional Hot Rods' started by Mike Colemire, Jun 18, 2019.

  1. Mike Colemire
    Joined: May 18, 2013
    Posts: 1,428

    Mike Colemire
    Member

    Just got my A sedan started and at an idle, I'd say around a 1000 rpm at the time, my tach is reading 3000. Is there a way to change these from 4,6, and 8 cyl? I'm thinking that's the problem but it's been so long since I fooled with one I can't remember.
     
  2. Hotrodmyk
    Joined: Jan 7, 2011
    Posts: 2,302

    Hotrodmyk
    ALLIANCE MEMBER
    1. Northwest HAMBers

    If I remember correctly, Dixco tachs had resisters on the back. You removed one or both to set the number of cylinders.
     
  3. Mike Colemire
    Joined: May 18, 2013
    Posts: 1,428

    Mike Colemire
    Member

    That don't sound good.
     
  4. Mike Colemire
    Joined: May 18, 2013
    Posts: 1,428

    Mike Colemire
    Member

    Finally found an old Hamb thread by googling it about 4 different ways. They are suppose to have 3 resistors, red, blue and brown for a V8, 6 cyl you remove the red one. My question is if I'm missing one where in the world would I find resistors?
     

  5. saltracer219
    Joined: Sep 23, 2006
    Posts: 1,071

    saltracer219
    Member

    Radio Shack
     
  6. Mike Colemire
    Joined: May 18, 2013
    Posts: 1,428

    Mike Colemire
    Member

    Never thought of that, thanks.
     
  7. Seepwater
    Joined: Aug 13, 2006
    Posts: 171

    Seepwater
    Member

    You might have a job ahead of you trying to find a Radio Shack....most of them went under some years ago!
     
  8. Gman0046
    Joined: Jul 24, 2005
    Posts: 6,256

    Gman0046
    Member

    The biggest problem is determining the resistors value if its missing.
     
    lothiandon1940 likes this.
  9. 41rodderz
    Joined: Sep 27, 2010
    Posts: 6,540

    41rodderz
    Member
    from Oregon

    Radio Shack went out of business last year here.
     
    lothiandon1940 and lumpy 63 like this.
  10. tubman
    Joined: May 16, 2007
    Posts: 6,913

    tubman
    ALLIANCE MEMBER

    "Digi-Key" - If you can navigate their website (not an easy task), you will find they have everything you might need.
     
    Last edited: Jun 19, 2019
    lothiandon1940 and Latigo like this.
  11. Should be an electronic/computer store near by or an old tv repair shop.
     
  12. Jimbo17
    Joined: Aug 19, 2008
    Posts: 3,959

    Jimbo17
    Member

    Great old company that made great tachs.
    Jimbo

    Dixco Instruments.jpg Dixco Tachs.jpg
     
    lothiandon1940 and LAROKE like this.
  13. Mike Colemire
    Joined: May 18, 2013
    Posts: 1,428

    Mike Colemire
    Member

    We still got a radio shack but like was said I'm not going to know the resistance or value if it's missing. I got to much other stuff to do right now, I'll tackle it once I get it on the road.
     
  14. loudbang
    Joined: Jul 23, 2013
    Posts: 40,276

    loudbang
    Member


    Measure the ohms on the ones you do have then extrapolate the difference between the 4 and 6 then add or subtract that number to the 6 and you should be in the ballpark for an 8. :)
     
  15. Mike Colemire
    Joined: May 18, 2013
    Posts: 1,428

    Mike Colemire
    Member

    That makes sense loudbang!
     
    loudbang likes this.
  16. Clete
    Joined: Feb 6, 2010
    Posts: 22

    Clete
    Member

    Hi Mike. I have an old dixco tach with rusty bezel and cloudy lense, but still has the 3 resistors. You may have it for no charge for the resistors if you pay for the shipping. Clete
     
    loudbang likes this.

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.