still needing assistance.....anyone??????

 

I am wondering the same thing....someone here has likely installed a factory tach in car that was not originally equipped with a tach.

Likely a new dash harness is needed or can the existing one be modified?

Would sure like to hear from anyone who has done this and perhaps added console gauges at the same time???

Thanks!

 

im gonna bump this back to the top hoping someone can help me ....i've been searching on here and have found some asking the same question but no real clear answer so far i think i can use the same circuit board but i just need to know what wire to run to the tach and where to hook it to the tach...any help would be greatly appreciated

 

I used a conversion harness when I installed the tach and gauges in my ’67. This harness is designed for adding a factory type tach and gauges in a car that did not come with them. The harness I got was well made and came with good instructions which made the job pretty easy. You should be able to get a conversion harness from any Camaro vender.

 

thanks farmboy that helps i will try to find that harness.....also did you have aftermarket electronic ignition i have msd dont know if that will make a difference or not......thanks again

 

I went through the same thing a few years ago. Yes, you can wire it up without a new harness and without cutting into the old one. The problem is i cant remember exactly how the hell i did it. I think i just ran a wire from the pickup source to one of the studs on the back of the tach, not sure if i had to run a power wire or not but you can run a quick check with a circuit tester can answer that. The only difference is im using the stock points dist with a Pertronix kit. I know this is probably about as clear as mud but hopefully it helps point you in the right direction.

 

thanks jim at this point any and all help is appreciated. Im just trying to get peoples opinions on here cause I know others like you have had to have gone through this before. I just dont want to fry my tach .... no to big on thowing $200 dollars down tha drain. Thans again

 

This is how my cluster plug looked after I modified it with the conversion harness. I was using the alligator clips as a jumper to the tach so I could calibrate it.

Are you also going to use the console gauges?

 

steve thanks so much for the help and the pics .. I actually was searching for hours on here and found the pic of your plug last night. this is what i did i just installed the tach and cut the brown wire and and plugged it into my msd 6a box from what I read this should make it work.....but as my luck goes tach still not working I know its not a ground issue because i cleaned the ground strap real good with sandpaper and all my lights and blinkers work. so im thinking the tach may have a problem.... one more question the studs on the back of the tach which one should i run my tach lead to and is the other one a ground or hot if i want to test it and calibrate it like you show in the second pic.....again thanks sooo much for your help it is greatly appreciated

 

I am going through the same exact problem with my 1967 Camaro, with an MSD ready to run distributer. The cicuit board is the same on a Camaro with or without a tach. The wiring harness is not. If you connect a set of wires to the tach studs on a camaro that did not come originaly come with a tach you back feed power to the fuel sending unit then to ground. Cut the wire off the instrument panel plug marked from fuel tank as shown in the above picture and install a tach filter. MSD told me to install a .01 micro Farad 1000 volt ceramic capaciter in line with the negative coil wire going to the tach. Good luck to you, I am still working on mine as time permits.

 

I got tired of dealing with mine Don. Here is what I did I took my tach apart and and a new sun tach apart and just mounted the inside part of the sun tach to my original tach face turned out great and works perfectly. I'll try to post some pics if i can figure out how. Anyway give you something to think about and another option if you cant get it to work.

 

Here are a few pics how I solved my tachometer issue

as you can see in the last pic I have the tach mounted to my original face plate but I still havent put the needle on I used the factory needle off my factory tach

 

I like your way of thinking this through Lownslowtexaco, I pulled my reproduction tach apart and found the MSD ignition fried the tachs main resistor. I orderd a Sun tach, its much cheaper than another reproduction I will let you know how it goes.

 

Thank you,

Lownslowtexaco I found only the 2 5/8" Sun tach will work in the old housing. And it works very well and looks original thank you very much for the tip, I cancelled my order for a tach adapter.

 

I'm glad it worked out for you Don mine is working great also....guess the old saying is true more than one way to skin cat !

 

Anyone know if this Sun solution works in a 1968 Tic Toc Tach?

 

Hey Bro, I just did the same thing. I added a console w/gauges. So I used the fuel wire which is where the tach is now. Just replace the fuel input wire with the tach input in the instrument plug. the circut boards are the same.

 

The fuel and tach circuit boards are different. The fuel tan wire is in the upper left spot and the brown tach wire is the second from upper left veiwed from the read of the cluster.

 

Does anyone know if you make the above Tach change do you need change the gauge backer plate wit spedo?

 

My 67 didn't come with a factory tach so I bought it from Classic and it came with the harness and instructions. It was a smooth install and to be true to factory form I had to run the tach wire to the coil thru the fusebox bulkhead and it's a pain to pull that apart. But you can bypass that if you'd like and just run a wire through the firewall somewhere where there's a hole with a grommet.

 

I know this is an old post.

but I need to get my oer tach working. Im using pro comp ignition 2015 kit, ignition box, distributor, and coil.

Has anyone else done this I would like to know how well it worked and I would like to see some bigger pics.

 

Hey guys on a factory tac whats the part needed to make it work with a MSD in a 68

 

Many times, one needs to install a...filter? in-line to make it work.

 

Here is the Team Camaro DIY Tachometer Filter article.
http://www.camaros.net/techref/electrical/tachfilter/index.htm

 

My Tach had not been working, so I opened it up and found that the 2 wires, balk and white, were not connected to the circuit board. Can some one help and tell me where they should be soldered on to the circuit board? I have looked for a schematic everywhere, and haven't been able to find one.
thanks in advance.