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Tach Question

Data Plate

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I heard theres an adaptor you can buy to make your tach work when you have an electronic ignition without changing the wiring harness ? Anybody know anything about it, Would be for a 69 Charger (440) and 69 super bee (383) the bee is my friends car
 
Old school tack's don't need it. Unless you wanting to us the factory one.
 
Regular elect ign doesn't need a tach adaptor for the tach, just multispark systems without a tach specific provision, althought multispark systems instruction sheets especify when is needed or not.
 
I have a factory console tach in my 67. I did nothing different after I switched to the Mopar electronic ignition kit many years ago. The tach still works like it always did. And it is also not accurate, just like it always was....
 
Both of the cars have the tic toc tach in them factory gauge so i wouldn't need a adaptor maybe its just not hooked up ?
 
Ok my buddy with the 1969 383 super bee has a factory tach in the dash and point ignition but when the car was redone they put in a electronic ignition harness in so his tach isn't working so what does he need to do to get it to work ??
 
when he bought the car it had a electronic ignition and he put it back to stock points but never changed the harness
 
The tach harness is a seperate harness. Its I believe a grey wire.
Here is the harness.
https://www.classicindustries.com/p...s8Zg01GCOFPx4du13W1pNFJ6T4W5yOSxoC5IIQAvD_BwE

Here is a picture off ebay of an original tach harness under dash and under hood sides this is a 1968 Not sure if they changed for 69. Here is a link to it.

https://www.ebay.com/itm/1541224706...bPvG0V5y1zDfV-rooJ2nyYWv1LYXL-WBoCk0oQAvD_BwE

s-l1600.jpg
 
tach needs a positive keyed source and the trigger coming from - lead of coil. Aside this, the built in clock gets a constant + source, so your tic-toc-Tach should get 3 wires.

Gray for the clock ( spliced from the pink wire at light switch ), which should be part of the main harness, since on 68/69 clock was standard

On the harness posted by BeepBeepRR
Blue for the keyed source running to fuse box
Gray with trace for the coil trigger running to firewall grommet

harness.jpg


ticktachtockchargerrt.jpg


image-jpg.jpg
 
Last edited:
Ok my buddy with the 1969 383 super bee has a factory tach in the dash and point ignition but when the car was redone they put in a electronic ignition harness in so his tach isn't working so what does he need to do to get it to work ??
I don't think the tack is part of the normal wire harness. I know my 68 is not.
 
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