Housings with rust on the back are typically not a good sign. Reach under the dash and pull down the factory wiring, as seen here. When it comes to the relationship between automotive parts located in different areas of the vehicle, communication is always key, and this especially rings true for wiring components. Ammeter not voltmeter - The Ammeter us just that. Plug the wiring harness from the Rally Pac into the coil wire, ignition wire, and the factory under-dash harness.
Be careful to track the original color of each wire. Are you looking to add some extra amenities to your First Generation Ford Mustang? Reassemble using the new lenses and bezel. Gas Gage - The Gas Gage on the 65 is the same hook up as on the 66. They don't want to re-engineer the entire car, they just want someone to fix what broke. It's sort of a bridge between the alternator and the battery to show you if the system if charging, or drawing current. I have done my best and labeled what I could.
Thanks for all the help. It seems to work very well as the car will fire off in just a few revolutions even after setting for a week. The attached photos show the connections I am confused on and I listed what the wire colors are on each photo. If you decide to simply hook the Ammeter to the Alternator and the Battery and not adjust the rest of the wiring, I have no idea how that will work. When running new wires, feed them through existing holes if possible and protect them so they won't chafe, cut and ground out.
Cut off the lamp socket and splice in a bit of wire with a lug on the end to reach the Oil pressure gage. If you're going to install , now's the time. I have the warning light working correctly. Which does not help either. Instead, just splice together a new wire or replace a connector just where you need it! Feed the coil wire through a factory hole in firewall and connect it to the distributor side of the coil, marked with a negative symbol.
This is where those bright orange needles you touched up come into play. There's always one last item that makes a project perfect. I am switching to the 66 harness at the recommendation of Johns mustang for ease of installing a 66 gauge cluster. So the decision was made to run the single wire to the coil. Last, Scott Drake employees told us to be on the lookout for a '66 five-dial-cluster conversion kit that will change the gauges to a more modern backlighting like the new Rally-Pac that's much easier to read at night but will look original. The tachometer and clock faces are silk-screened like the originals, though they are now backlit for easier viewing at night.
It is best for you to read and get understanding about this instrument cluster wiring diagram before trying to fix abything in your Ford Mustang. Plug blue-to-blue and green-to-green, essentially placing the new Rally-Pac wiring between the door jamb switch and the factory harness. If you decide to color match yours, use light coats of paint to prevent losing the wrinkle-finish look. Here are the things you'll need to make the swap. The thing that is throwing me is that they don't always match up or agree like you mentioned.
Clean the gauge face of the unit with a soft damp rag. Disconnect Green-Red under dash from idiot light and connect lead to center post of Ignition switch. The other side goes to the appropriate sensor, and the variance in ground by the sensor makes the needle move. Ray, Thanks for the information, I do have the instructions but could not figure out which wire to tap the red wire from the tach adapter to. The other harness the one pictured in the last picture.
Turn Signals - Slight mod required, as the 65 has one lamp for both left and right. Use crimp on connectors where ever lugs or spades are used. Please note that the repair kits intended for are specifically labeled for Mustangs with either a high or low profile. If you have any questions,. Make sure they all work before you put the thing back together and screw in the dash. Remove two Phillips head screws and pull out the kick panel. The tach is wired in series, so the black wire is not for grounding.