tachometer not working

Postby turbocal » 17 May 2004 21:42

I have a 1970 challenger, 440ci with accel ignition and msd 6A. When I hook the green wire of an after market tachometer to the negative side of the accel ignition, the tachometer does not work. What do I need to do to get this tachometer working. thanks, calvin
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Postby dave-r » 18 May 2004 7:31

I think it has something to do with the MSD unit. Check out their web site for advice.
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Postby spitfire9137 » 18 May 2004 10:48

If you use a MSD ingition control box there is a tach port/wire on that you have to hook up to.
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Postby dave-r » 18 May 2004 11:16

I think on some of their units you used to have to buy an adaptor for the tach?
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Postby spitfire9137 » 18 May 2004 19:45

Yea dave your right, there is something about msd coils and igniton boxs that you cant just hook a tach right up to them.

http://www.jegs.com/cgi-bin/ncommerce3/ ... rmenbr=361

Thats the thing you need.
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Postby dave-r » 18 May 2004 20:51

spitfire9137 wrote:Yea dave your right,


Hey it don't happen too often! :)
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tach repair

Postby tachman » 01 Nov 2004 22:54

my tach is not working, who can repair it and it needs the dial sil screened

tks
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Postby insuranceguy » 01 Nov 2004 23:34

I used http://www.redlinegaugeworks.com/

Todd
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