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tach installation ideas?

M

Mr.LaHoyaSunset

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I bought a Tach for my truck, and ran into a problem... I bought it a few months ago, and had to leave the truck in the caring hands of my dad when i went to basic training. Here is the problem. I have no idea how to install it. It is a 5in tach, and i have an automatic tranny for my 79 k5.
I PM'd the guy i bought it from, but he hasnt replied, so im asking all you guru's and for any advice you have. I incredibly appreciate your help y'all /forums/images/graemlins/thumb.gif /forums/images/graemlins/ears.gif
 
Depending on how the base of the tach is made you can mount it on the colum with a radiator clamp. That;s how I have it on the 75. on the 88 Burb I couldn't do that so I hung it uner the dash under the radio. I'm mor concerned with see what my RPM's are under load so wasn't a priority that it be up high for gear jamming.
On the 75 it blockes the sgear indicator but it was broken anyway LOL.
P1130005.jpg
 
Did it come with any wires? It should come with wires, and they should hook up to the distributor. I dont know aobut on a 79, but on my 87 with electroinc dist., the wires hook into the back of the dist. I dont know aobut yours, but it hooks somewhere on the dist i know. Look around on here, im sure this has been covered before. If you dont find anything, do a search on the internet with google, or yahoo, and im sure oyu can find it. Good luck. /forums/images/graemlins/thumb.gif
-Harrison
 
Yep, should have one wire for dizzy, one to wire to an ignition hot plug in the fuse box, one ground wire, and maybe another one for the backlight, if equipped.
 
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Yep, should have one wire for dizzy, one to wire to an ignition hot plug in the fuse box, one ground wire, and maybe another one for the backlight, if equipped.

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i agree you should basically have a hot wire, ground wire and a wire that goes to the distributer..... on the distributor there is a spot that should say tach.... brb lemme go look at my truck the front clip is off so it is easy to get in there....

WOW... didnt realize it was gonna come out clear....

here is a pic for ya..
http://68.45.114.100/distributor.jpg

pic is HUGE but you can see where it says tach and bat(tery)
if file opens then explorer squeezes it down... just click on the pic and a square should showup on the lower right of your screen.. .click it for fullsize....
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I don't think 87-up distributors have the convenient little tach port. So where would someone like me with an 88' plug in the tach wire? Then again, I'll soon be getting an MSD 6A ignition box which has a tach port in it anyway.
 
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txsize, howd you mount that? looks cool, im sick of cutting my knee on the hose clamp on the column

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that is why i am buying a parts truck with the tach in the dash.... factory tach baby!!!!! and i will basically scrap my 5" monster tach..... /forums/images/graemlins/grin.gif
 
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I don't think 87-up distributors have the convenient little tach port. So where would someone like me with an 88' plug in the tach wire? Then again, I'll soon be getting an MSD 6A ignition box which has a tach port in it anyway.


[/ QUOTE ] i have an 89', there is a wire(red, i think) coming out of the dist. its like 4 inches long and has a plug on the end.
 
just looked under my hood. its a white wire that comes out of the coil.
 
just looked under my hood. its a white wire that comes out of the coil.
 
How about putting it in place of the monster gas guage. The 5" guages fit very well in the 2 big holes. check this out, www.fullsizechevy.com. /forums/images/graemlins/thumb.gif

85K5 3/4ton,14boltFF,10bolt,9"lift,35"boggers,16.5x14welds, big horse 406SBC/700R4 /forums/images/graemlins/k5.gif /forums/images/graemlins/angryfire.gif
 
i have my tach setup like grim's a hose clamp on the steering colum, works great, just small anough to allow me to see the gas gauge and spedo, mine is a sunpro 2, and i use mine to see what my revs are when im in the mud because i really hate gettting the revs up to 5k rpm on a stock motor from 1987 /forums/images/graemlins/blush.gif /forums/images/graemlins/crazy.gif.

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How about putting it in place of the monster gas guage. The 5" guages fit very well in the 2 big holes. check this out, www.fullsizechevy.com. /forums/images/graemlins/thumb.gif



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rjf, that link takes you to the main page there...doesnt help much.. i looked in the interior forums and didnt see a post about it..
 
hey guys, thanks for the great ideas, I really appreciate it,
quick question though, on the automatic tranny, do the wires just plug into the ground? more precisely, I have absolutely no idea how to put the wires in properly... /forums/images/graemlins/thinking.gif
any advice would help me out tons.
thanks,
 
1036MVC-042X-med.JPG

I put mine in where the fuel gauge used to be. Just four wires: distributor, switched 12V, ground and dimmer.
 
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