Need help with tachometer

CJDan

New member
I got a new wiring harness and was wondering how i hook up the tachometer? Any help would be great. Its an i6 4.2l 1981 cj7
 
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what are we talking? CJ, YJ, TJ, ? motor, 2.5L, 4.0L, 4.2L, Chevy, ? you left us all hanging.. year?
 

For the most accurate reading, hook it up to the vector displacement unit on the output side of your driveshaft. Also make sure it's grounded to the velocity indicator component,that's very important.
 
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For the most accurate reading, hook it up to the vector displacement unit on the output side of your driveshaft. Also make sure it's grounded to the velocity indicator component,that's very important.

don't forget the gizmat sensor on the chrome reverse muffler bearing, unless your not using the G-Force option..
 

don't forget the gizmat sensor on the chrome reverse muffler bearing, unless your not using the G-Force option..

Ok instead i will just hook it up to the e-vac brass custom explode valve the put the hot to the underscore fire retro exhaust clip under the transmission.
 
Sorry about your luck, being stuck with us morons on this thread, but your gonna have days like that. Some days,ya got chickens some days ya got feathers. I dont have a clue about a tach,but maybe youll get lucky and a normal person will chip in,good luck.
 

have to be really careful with that, it will set off the auto eject if not wired in sequence..
 
Connect the Greenwire to the negative (-) side of the ignition coil. Black is ground, White is usually to your instrument lighting, tap off of one of the bulb leads, and... Red goes to hot (with ignition on or basically switched)..
 

have to be really careful with that, it will set off the auto eject if not wired in sequence..

Unfortunately your post was to late and i wired it incorrectly an the auto eject went off, unfortunately my top was off and I happen to be sitting in a tree now...
 
Ok,folks we shouldnt be acting like this when we havent even finished our second beer,darn just spilled it. Guess ya call that alcohol abuse.
 

Like my Pappy always said...... The first liar ain't got a chance in this camp.
 
Ok instead i will just hook it up to the e-vac brass custom explode valve the put the hot to the underscore fire retro exhaust clip under the transmission.
Sorry to say, it looks like you have become happily twisted like the rest of us, and there is no cure for it. Not even a 12 step program to help you with your condition, it's a direct result from driveing on those trails that the devil himself created to screw with us. Little did he know, we like it that way. just prey that your family dosnt get bent to far out of shape about it. If your ever in virginia let me know and we'll hit Devils path, and maybe do a little gerbil hunting.
 
Buck hour said:
The vacuum advance on my flux capacitor is 4% to rich. Has anyone else had trouble with time travel?

Im thinking your problem isn't with your flux capacitor at all. Where in the world are you gonna get 1.21 giga-watts, let alone hitting 88 mph in a jeep?
 

The vacuum advance on my flux capacitor is 4% to rich. Has anyone else had trouble with time travel?

you know, I'll bet that's what happened, yesterday I was in my 20's, and suddenly I'm 64? that fully explains it, darn jeep thing..
 
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