Other projects took precedence this week so I only pulled out the transpo f540hd today.
I practiced the wood Dowel holding the ring terminal trick on a set of clamps from a old retired small jumper pack that came with a 12AH Asian AGM battery, now long recycled. Only one of the jaws was live so I ran 10awg to the other Jaw of the same clamp:
This is 10 awg in a 10-12 ring terminal, crimped in the hydraulic crimper. The die size was not perfect, note the thin ears:
I angled the ring terminal and wire up towards the the other output wires, which are just temporary in this photo. I did heat shrink the terminal for the idiot light with blue, and I half covered the bases of the other terminals with yellow heat shrink as I am just going to run individual insulated quick connects to these terminals rather than get the red ford Connector. I am going to mount this inside the Van on the firewall. Got a great spot for it that will keep the run to the alternator under 3.5 feet long, and well protected.
It soldered pretty well with butane torch and 140 watt gun. I covered all that exposed copper stranding. Forgot to take a pic tonight.
I was able to pull the little plastic ring from the potting material under the potentiometer, and then use the dremel to remove enough potting to get at the 3 potentiometer legs:
The two legs on the right are electrically the same. Between those two and the other leg on the left I measured 748ohms. I snipped them off leaving about 3 to 4mm to solder wires to for the external pot.
I got tired, and did not solder wires to the them.I need to find a nice small grommet for where the wires will enter the cover.
Mex, the 12v+ always on/voltage sense wire....If I were to run a separate wire to the battery, does this wire carry much current? Can it be 22 awg?
I plan on 12awg for the 12v+ ignition switched on and for the Field terminal, and 10awg for the one field terminal to alternator casing, and the ground from transpo casing to Alternator casing is 10awg.
Looking forward to dialing a voltage when driving. If it all works.
