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Aftermarket tach on elec dist carb
Posted: Sun Mar 04, 2007 8:22 pm
by mroberts
Hi, trying to install an aftermarket (homebuilt) tach on a carby '88 EA82 - I'm assuming that's the electronic distributor.
Which wire should I be grabbing for the signal ? Yellow or black ? Seems like the circuit runs dist-yellow-coil-black-ground but I'm not sure.
Thanks.
Posted: Sun Mar 04, 2007 8:30 pm
by BaronVonChickenPants
The tacho should run from the coil negative, usually this is the yellow wire on the coil but check the symbols marked on the coil to be sure.
Jordan.
Posted: Mon Mar 05, 2007 7:57 am
by mroberts
Thanks. Would there be any interest in a <$30 homebuilt tach ? If so, I can post what I work out.
Posted: Mon Mar 05, 2007 3:02 pm
by Gannon
I already have a tch in my car...
But i am curious of what your homemade tach looks like and what kind is it, digital, Analog, Bar-graph?
Posted: Mon Mar 05, 2007 3:19 pm
by mroberts
Bar graph. Based on a **** Smith / Jaycar voltage meter kit and a frequency to voltage converter IC.
Realisitically, it's not working out any cheaper than their most basic tach, but I'm plannign to run a few things off the same gauge.
Posted: Mon Mar 05, 2007 4:14 pm
by Gannon
mroberts wrote:Based on a **** Smith / Jaycar voltage meter kit
Ha ha, it asterisk'd out the Richard in Richard Smith