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  1. 72RoadRunnerGTX

    BY passing charging gauge 70 challenger

    “Ok ,so running the wire from the red pos side to the relay is wrong to run it from the Alt stud? 1) please confirm this is ok” What I’m saying is it is unnecessary for a stock sized alternator, stock loads, bulkhead by-pass, and good ammeter connections. Seams to be pushed as an alternative to...
  2. 72RoadRunnerGTX

    BY passing charging gauge 70 challenger

    Wires running straight to the ammeter around the fuse box/bulkhead connector? You are describing a bulkhead charging system by-pass, by far the weakest link in the original design was routing the charging current through un-sealed, under current rated, Packard terminals. As mentioned, also...
  3. 72RoadRunnerGTX

    4spd Neutral Safety Switch wiring routing location and clips??

    To be clear, it’s a reverse lamp switch, no neutral safety switches directly mounted on the A833.
  4. 72RoadRunnerGTX

    need the choke control switch

    All intakes were cast to accept the re-designed electrically assisted divorced choke assembly beginning in the ’73 model year for passenger cars. The FSMs from ’73 on have a complete description of its function. The divorced chokes from previous years will not directly fit the ’73 and on...
  5. 72RoadRunnerGTX

    need the choke control switch

    Those original choke controls didn’t last long originally once put in service. They were considered a tune-up replacement part at the dealers as they failed quickly. Save your money, build something that will last. Some details here.
  6. 72RoadRunnerGTX

    Distributor vacuum advance

    Clearly a later Thermoquad, likely a Lean-burn carb. Does not have a dedicated vacuum advance port. Get the carb number off the driver’s side rear mounting flange, will tell you just what the original application was.
  7. 72RoadRunnerGTX

    Canister mounting location

    The pictured canister bracket is not correct for the E-body. The mounting holes for the correct bracket (slightly different mounting pattern) appear to be present in the inner fender between the core support and washer bottle. The correct bracket is pictured here
  8. 72RoadRunnerGTX

    Light switch dash bulb wiring?

    Part of the optional light package, wiring diagrams for options are detailed separately in the factory diagrams.
  9. 72RoadRunnerGTX

    Light switch dash bulb wiring?

    That bulb is on the time-delay relay circuit, same as the ignition switch bulb. When functioning correctly, it will light up the headlamp switch, along with the ignition switch, for a minute or two when/after opening the door. It is not part of the normal instrument illumination circuit.
  10. 72RoadRunnerGTX

    Parasitic drain

    Sounds like you have eliminated the fused circuits, disconnect the alternator output wire at the alternator to eliminate a shorted diode. Any aftermarket ad-on loads at the battery or the “batt” tap at the fuse box? From there I would disconnect the ignition switch Molex, then on to the bulkhead...
  11. 72RoadRunnerGTX

    1971 E Body Dash Schematic?

    By all means, by-pass the bulkhead connection for the charging system wiring. In the second shot above you can see the 8-gauge (red & black) charging system bypass wiring. I will un-wrap a new M&H engine harness and replace the 12ga alternator output wire with an 8ga, routed directly the ammeter...
  12. 72RoadRunnerGTX

    1971 E Body Dash Schematic?

    Yea, all ignition related dash harness wiring went to 12 gauge by ’72, I’ve seen some later replacement switches where a couple runs were 10 gauge on the switch side. Funny, they never really addressed the real weak spot, the Molex terminations that are way current under-rated for that...
  13. 72RoadRunnerGTX

    6 pack choke

    The original Chrysler center carb divorced choke is not used on the aftermarket, or other makes, 2300, you won’t find a direct bolt-on electric choke for the OE center carb. I’ve made my own electric chokes for the six-pack, detailed it several years ago here, still working as designed today...
  14. 72RoadRunnerGTX

    440 6 pack rear carb fuel bowl replacement

    Another option is calling Holley for a replacement bowl for list number 4672 (current re-issue of the ’71 outboards). Made that call earlier this year, sounded like they pulled a bowl off a production unit, came complete with float and related fittings/hardware. Price was reasonable, shipping quick.
  15. 72RoadRunnerGTX

    Ammeter/Alternator issue

    WTF, EMF? Did you not read the OP’s interpretation of “alternator pushing more than around 60 amps” as related to swapping an alternator? Point is, if the voltage (V) and the load (R) remain unchanged, then the resulting current (I) also remains unchanged. There are some questions on these...
  16. 72RoadRunnerGTX

    Ammeter/Alternator issue

    The OP’s original question, as I understand, will the ammeter have to be by-passed if an alternator with a higher output capacity is swapped into place of the original spec. alternator with new reproduction wiring and all stock vehicle loads? Nothing about a complete redesign of the original...
  17. 72RoadRunnerGTX

    Ammeter/Alternator issue

    And you believe this temporary brief higher charging current can’t be handled by the ammeter? Many many Chrysler products back in the day suffered dead batteries, were jumped, battery recharged off the alternator and suffered no ammeter issues whatsoever. Ammeter can handle a great deal of...
  18. 72RoadRunnerGTX

    Ammeter/Alternator issue

    The pictured “Police” 80 amp scaled ammeter actually has an internal shunt, it uses the same 40amp movement that most Chrysler passenger car ammeters of the time. Should be noted as well, the factory fleet/Police production also included a factory bulkhead by-pass and upsized wiring on the...
  19. 72RoadRunnerGTX

    Ammeter/Alternator issue

    Back to Mopar old-school, Jump ahead to 12:10 or so. All original loads are on the alternator side of the ammeter. The alternator is the primary power source while running.
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