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  1. str12-340

    Odell IL on Rt 66

    #halifaxhops Along Rt 66 in Odell Illinois is a Standard Oil gas station and garage. It is owned by the Rt 66 Association of Illinois, and they have been restoring the place as funds are available. In one of the garage bays, I found this Sun Distributor Machine and thought folks, particularly...
  2. str12-340

    gap for plugs - MSD box & dist.

    I am going over my 340 and wanted to get the best pugs and the correct gap for my set up. This is a 1969 340 with factory TA heads and forged nominal 10.5:1 pistons (my best guess is between 10 and 9.5 to 1 actual compression). The car is street driven with very few passes down the 1/4 mile...
  3. str12-340

    neutral safety switch/ reverse light unit in trans

    I need a reality check. I had some problems with my neutral safety switch engaging, so I got a new one several weeks ago. Now car starts fine, but I realized that I lost my back-up lights. I put the car up and unplugged the switch at the trans and jumped the outer two sockets in the wire plug...
  4. str12-340

    change in gas and temp gauges

    for years my temp gauge has worked well, verified with infrared sensor at the thermostat housing. At 180 to 190 degrees it sat 1/3 of the way into the bracketed part of the gauge. Once up to temp, if you turned the car off and came back 20 minutes later the gauge read 2/3 or a bit more and...
  5. str12-340

    voltage levels

    I'm on the road, 2200 miles into a 5000 mile road trip. A 1970 Dart, 318, all new M&H wiring throughout. New stock output alternator, group 24 battery, 70 style regulator. When I start the car in the morning (cold) the ammeter goes to 15 to 30 amps and then comes down to just barely charging...
  6. str12-340

    NSS diagnostic question

    Out around town in my 1970 Dart (340, auto) yesterday I stopped for a snack and a drink and when I came out and I turned the switch - nothing happened. I fiddled around with the shifter and tried Park and neutral, but no dice. I figured that the NSS plug on the trans had come undone, crawled...
  7. str12-340

    Ballast resistor question

    I'm working on a 1970 Dart. All the wiring is new M&H stuff. I've had the car running for a month or so and have put a few hundred miles on it and everything runs fine. In working to check various connections to be sure they are secure, I put my finger on the ballast resistor and burned the...
  8. str12-340

    how to bench test a 70 Dart instrument cluster?

    I have been completely rebuilding a 1970 Dart including all new electrical. Of course the one thing that didn't work in the whole electrical system is the thing that is most difficult to get to - the instrument cluster. Everything on the right side works fine, the dash lights work fine all...
  9. str12-340

    Before I crawl under the dash

    I am just getting my 70 Dart GT running. While it was apart I rebuilt the entire dash and gauges, assuming it's a lot easier to do out of the car, and because I had a bunch of non-stock wiring to accommodate and I wanted it to tuck up and be wired properly. I bought new temp and gas gauges...
  10. str12-340

    Gas tank sending unit ground strap replacement

    Is there a reason that the gas tank sending unit has to be grounded to the fuel line? I've made some modifications in my fuel line to add an electric booster pump and the factory ground strap doesn't reach. Can I just attach a ground wire to the sending unit outlet and ground it to the frame???
  11. str12-340

    where does 6 pack coil mount bolt on?

    I'm putting together a 318 for my Dart with an LD4B Edelbrock intake. It does not have the bosses to mount the stock coil bracket. I saw that 340 six packs had a bracket to mount the coil strap to. I've looked at dozens of pictures of 340 six packs and the way the relocated coil sits, you...
  12. str12-340

    smooth black Group 24 battery to use with fake retro kit?

    So I'm trying to find a high CCA modern sealed battery that is black and smooth to fake a retro battery. Weskcar is now making a deluxe kit that, instead of stickers, includes side and top plates that are cast like the originals plus fake correct looking caps in various colors, but to pull it...
  13. str12-340

    1970 Dart emergency flasher mount

    I'm putting the dash back together in a 1970 Dart (whole dash out of car). The flasher unit for the emergency flashers clips into a socket (which I have), but damned if I can remember where the socket clips onto the dash... any help???
  14. str12-340

    3 gauge cluster placement

    I'm working on a 1970 Dart GT. I want to add 3 gauges in a cluster. Problem is that this car has both a console and AC vents that seem like they will take up the usual location. Any suggestions for placement??? or a picture of where you mounted your gauges ???
  15. str12-340

    instrument lighting wiring and fuse

    I'm working on a 1970 Dart with relatively new M&H wiring (which was a dream to work with). On the "instrument" fuse terminal I piggybacked an extra wire to feed the added instruments in the car so they would work with those in the stock instrument panel. There are three gauges and a tach and...
  16. str12-340

    small wiring mystery

    I have 3 1970 Darts. The wiring is pretty stock on all of them. I've been replacing all the harnesses on #3 and wanted to add the subharness for an interior light package while I was doing it. As a reference, I pulled down some of the under dash wiring from #2 to see just how it was put...
  17. str12-340

    taping wire - securing non-adhesive tape

    So I am in the middle of a dash wiring project. I bought a roll of the non-adhesive black tape to wrap long runs of multiple wires. How best to secure the ends once you are done? What did the factory do?
  18. str12-340

    What is this (and where does it go)?

    I disassembled the dash on my 70 Dart and removed this bugger 6 months ago, but damned if I can remember where it went or what it did. How about some help?
  19. str12-340

    Wiper linkage bushings - finding a solution...

    So I'm working on a 1970 Dart and when I bought the car there were a pair of really good wiper pivots with the car, uninstalled. So the ones on the car were trash, so I installed the better ones and when I went to hook up the linkage the bushings fit nicely in the linkage arms, and the pin on...
  20. str12-340

    Factory Accessory relay

    So here we are in our unending search for electrical truth! Car is a 1970 Dart. Car came with an accessory lighting package. In the car, that means that juice that would normally go to the cigar lighter (high class Mopar, no mere cigarettes here), instead plugs into an accessory wiring...
  21. str12-340

    2 speed wiper motor questions

    1970 Dodge Dart. Attached to my 2 speed wiper motor is what looks like a ceramic ballast resistor. Does someone know the function of this thing? My 3 and variable speed motors never had anything like this. I don't see this at all in the FSM service manual wiring diagram. There seem to be...
  22. str12-340

    trying to identify a sub harness

    I never throw anything away that I might need. In working on the wiring for my 1970 Dart I was going through a big bin full of complete and partial wiring harnesses (for parts) and decided it was time to sort it all out and label things to make future searches easier. I came up with a sub...
  23. str12-340

    looking for wiper switch info

    So I am working on a 1970 Dart GT that came with 2 speed wipers and a manual foot pump for the washer. After thinking about it I decided to get rid of the manual washer system and go to electric (fear of a malfunction dumping a quart of washer fluid in my nice freshly painted floorpan and new...
  24. str12-340

    info on cleaning corroded bulb sockets, please!

    I'm working on rear lights - brakes, back-up etc. and need to clean out corroded bulb sockets. I seem to remember there is some magic potion that you can buy to accomplish this task. Any suggestions/information would be greatly appreciated!
  25. str12-340

    modern voltage limiter for dash gauges

    I'm rebuilding the dash unit on a standard (non-rallye) dash cluster. I want to replace the voltage limiter. Most that I have found are made by RTE and carry a part#IVR4. Classic Industries is selling IVR607 for this application. All the sources for IVR4 seem to cost $50, but the one from...
  26. str12-340

    New or restored - dash circuit boards and gauges

    I'm working on my 1970 Dart with a standard gauge cluster. I talked to folks at Instrument Specialties about testing/restoring my gauges (of unknown status) because I really don't want to take this cluster in and out multiple times (including the freshly restored bezel). I said something to IS...
  27. str12-340

    Can you ID ignition boxes and distributors from their numbers

    I bought a car recently with retrofitted Mopar electronic ignition (originally points). Can anyone ID the ignition box and distributor from the numbers printed or engraved on tags? I understand that the quality of both units depends on the specifics and I'm trying to figure out if these are...
  28. str12-340

    ballast resistor in electronic ignition cars

    So over the years I have been led to believe that the reason there is a ballast resistor and a low volt start feed, as well as a full voltage run lead is that back in the days of points ignition, reduced voltage to the points when the engine is cranking at a low RPM made the points last...
  29. str12-340

    Help with MSD 6AL and billet distributor set up

    I'm looking for some help with my MSD 6AL system. This is the old non-digital set up that I've been using for 20 years. In running diagnosis there are 3 wires TO the box: a red and a black big wire that goes to the Battery and a serious ground, and a small red wire that connects to the...
  30. str12-340

    Help with MSD ignition system diagnosis

    I have a 340 with an MSD ignition system - Probillet distributor and an old school 6AL box (NOT DIGITAL!). I've used this on my Dart for 15 years or so and it has operated flawlessly. The engine now cranks, but no fire. Before I send off the Box and dizzy to MSD for diagnosis and repairs, I...
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