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  Mustangsandmore Forum Archive
  '69 to '73 -- The Musclecar Mustang
  Help with tach installation

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Author Topic:   Help with tach installation
Barry70Stang
Gearhead

Posts: 306
From: West Monroe, La USA
Registered: Jan 2006

posted 11-11-2006 07:28 PM     Click Here to See the Profile for Barry70Stang        Reply w/Quote
I am installing a tach in my car and have run into a little difficulty. Where is the best place to terminate the white wire so the backlight works through the rheostat and dims and brightens with the rest of my dash lights. Do I have to remove the switch?? I hope not, it looks like a project just to get to!

Thanks,
Barry

capri man
Gearhead

Posts: 8777
From: doerun, ga.
Registered: Nov 2000

posted 11-11-2006 08:29 PM     Click Here to See the Profile for capri man        Reply w/Quote
i would just hook it inline with another one of the dash light bulbs. good luck

------------------
mike r
racing is real
everything else is just a game.
81 capri-302-7.25 @93mph 1/8
1.54 60ft 50 % of the fun dragracing is meeting people who will give you the shirt off their back to wipe the grease off your hands.
M&M member #839 http://i2.photobucket.com/albums/y6/mike470/adel2.jpg

Barry70Stang
Gearhead

Posts: 306
From: West Monroe, La USA
Registered: Jan 2006

posted 11-11-2006 10:04 PM     Click Here to See the Profile for Barry70Stang        Reply w/Quote
Thanks, I'll look at that tomorrow. I started up the car to see if the tach works and low and behold, the $#%T$ oil pressure guage don't work. I guess all my poking and prodding has messed it up. I got frustrated and just decided to walk away. I'll start fresh tomorrow.

[This message has been edited by Barry70Stang (edited 11-11-2006).]

Barry70Stang
Gearhead

Posts: 306
From: West Monroe, La USA
Registered: Jan 2006

posted 11-12-2006 08:43 PM     Click Here to See the Profile for Barry70Stang        Reply w/Quote
I learned me some stuff today, through the school of hard knocks. Mike, your idea of tying in to one of the dash bulbs ended up being a learning experience. The whole dash panel system works off an electrical ribbon. The bulbs for each gauge just push in and twist and they contact the ribbon, there is no wire going to them. The same is true for the gauges as well, the gauges are bolted down and contact there respective area of the ribbon. There is a pin connector that ties into the ribbon that has the wires from the various sending units. The problem with my oil pressure gauge was that the wire from the oil pressure sending unit had been pulled out of the pin connector. I ended up pulling the dash pad and gauge panel, the learning experience made it all worth while.

Barry

70SportsRoof
Gearhead

Posts: 1064
From: Orange County, CA
Registered: Dec 2001

posted 11-13-2006 12:44 PM     Click Here to See the Profile for 70SportsRoof        Reply w/Quote
Barry, if you are just going to piggy back the wire onto another wire then run off one of the wires that illuminates the heater control panel. The light operates with the rheostat IIRC.

------------------
Gary M
'70 Mustang 63B SportsRoof
'95 Mustang GT coupe
and 4 other classic Fords

SteveLaRiviere
Administrator

Posts: 48752
From: Saco, Maine
Registered: May 99

posted 11-13-2006 06:26 PM     Click Here to See the Profile for SteveLaRiviere        Reply w/Quote
quote:
Originally posted by 70SportsRoof:
Barry, if you are just going to piggy back the wire onto another wire then run off one of the wires that illuminates the heater control panel. The light operates with the rheostat IIRC.


Yes, that's how I light my Sun tach on the '72 and it works with the rheostat.

------------------
'70 Mustang Mach 1 - '70 Mustang Convertible - '72 Mustang Sprint - '94 F-150 XL

capri man
Gearhead

Posts: 8777
From: doerun, ga.
Registered: Nov 2000

posted 11-13-2006 06:40 PM     Click Here to See the Profile for capri man        Reply w/Quote
quote:
Originally posted by Barry70Stang:
I learned me some stuff today, through the school of hard knocks. Mike, your idea of tying in to one of the dash bulbs ended up being a learning experience. The whole dash panel system works off an electrical ribbon. The bulbs for each gauge just push in and twist and they contact the ribbon, there is no wire going to them. The same is true for the gauges as well, the gauges are bolted down and contact there respective area of the ribbon. There is a pin connector that ties into the ribbon that has the wires from the various sending units. The problem with my oil pressure gauge was that the wire from the oil pressure sending unit had been pulled out of the pin connector. I ended up pulling the dash pad and gauge panel, the learning experience made it all worth while.

Barry


well dang i learn something every day!!

------------------
mike r
racing is real
everything else is just a game.
81 capri-302-7.25 @93mph 1/8
1.54 60ft 50 % of the fun dragracing is meeting people who will give you the shirt off their back to wipe the grease off your hands.
M&M member #839 http://i2.photobucket.com/albums/y6/mike470/adel2.jpg

Fastymz
Moderator

Posts: 22791
From: Reno Nv M&M #1240
Registered: Apr 2001

posted 11-13-2006 07:47 PM     Click Here to See the Profile for Fastymz        Reply w/Quote
I ran mine to the light wire that goes to the shifter. Real easy to hook into at least on a 65.
Because us 65 Mustang guys don't need or get NO heater control lights.
------------------
oddly obsessed with big scoops on little Mustangs

HOOD HACKERS DELIGHT!
My Pics

13.563 @ 108.64

[This message has been edited by Fastymz (edited 11-13-2006).]

Barry70Stang
Gearhead

Posts: 306
From: West Monroe, La USA
Registered: Jan 2006

posted 11-14-2006 08:39 AM     Click Here to See the Profile for Barry70Stang        Reply w/Quote
Thanks fellows, I didn't think about that. i wired it to where it comes on when I turn the headlights on, but it is not through the rheostat. I think I'll go back and change it. It would be to have ti dim with the rest of the gauges.

Barry

Fastymz
Moderator

Posts: 22791
From: Reno Nv M&M #1240
Registered: Apr 2001

posted 11-14-2006 04:33 PM     Click Here to See the Profile for Fastymz        Reply w/Quote
quote:
Originally posted by Barry70Stang:
It would be to have ti dim with the rest of the gauges.

Barry


Yup, it also helps to fill those long winter days while sitting in your car dreaming of driving it.

------------------
oddly obsessed with big scoops on little Mustangs

HOOD HACKERS DELIGHT!
My Pics

13.563 @ 108.64

Barry70Stang
Gearhead

Posts: 306
From: West Monroe, La USA
Registered: Jan 2006

posted 11-14-2006 04:51 PM     Click Here to See the Profile for Barry70Stang        Reply w/Quote
I have several of those winter time projects lined up, Grenada disc brakes, heater core, air conditioner work, perhaps a set of caltracs.

Barry

Fastymz
Moderator

Posts: 22791
From: Reno Nv M&M #1240
Registered: Apr 2001

posted 11-14-2006 04:54 PM     Click Here to See the Profile for Fastymz        Reply w/Quote
Thats great Barry those projects help the winter go by faster.
Good thing these cars are never done. The bad thing is that the money is!

------------------
oddly obsessed with big scoops on little Mustangs

HOOD HACKERS DELIGHT!
My Pics

13.563 @ 108.64

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