Relay help

Discussion in 'Technical' started by 7D2 Grabber, Dec 27, 2016.

  1. jtbshaw

    jtbshaw Member

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    With just pins 85 and 86 connected, my trigger wire supply reads 7.25v steady. It used to read 12v when I first located that wire. Have I done something? Every wire I have found is like this though, yet I understand it is because of the way the electrical system is in these cars. I just don't understand this old school electrical.
     
  2. Krazy Comet

    Krazy Comet Tom

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    OK lets backup, what color wire is that?? The coil feed should be red with a green stripe, that's the wire you should be using for trigger... You could be on the ground side of a indicator light such as temp or oil pressure, so you're getting a drop across bulb...
     
  3. jtbshaw

    jtbshaw Member

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    This particular wire is the light blue wire off of the ignition switch harness. I get nothin/zero off of the red w/green stripe coil feed wire. I believe this is part of my headache....someone switched the points ignition over to electronic before we bought the car. I have no idea how that person did this. Of course, the car was running fine, but I don't know how.

    I'm finishing up fabbing a transmission shift linkage bracket and will lower the car on the lift and check my fuses. Maybe it is something simple like that. I dunno. I do know that I really need to get this going in like the next hour or so, if possible.
     
  4. Krazy Comet

    Krazy Comet Tom

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    If my diagram is correct the light blue is feed from signal flasher to switch in column... Feed to it is white/ with pink and also may feed backup light switch... Those circuits are on fuse...

    For electronic ign there is a white with light blue that's supposed to feed the Duraspark module, it also sources from same point as coil feed...
     
  5. jtbshaw

    jtbshaw Member

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    Finished with the linkage bracket and no down to this electrical. This electrical issue is the only thing getting this car on the road at this point. I do see that I have two blown 15 amp fuses in the fuse block. Now I can't seem to find the few glas fuses that I have. May have to run to the parts store. I will check that white w/pink wire after changing the blown fuses and report back.
     
  6. jtbshaw

    jtbshaw Member

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    Adjusted my timing by a tooth on the distributor and apparently, it wasn't the right thing to do. Doesn't want to easily start now and drew down the battery some, which is also new, just hasn't see much charge. I have a couple errands to run and will put the thing on charge and come back to it later tonight and see what happens.
     
  7. 7D2 Grabber

    7D2 Grabber Member

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    I still have a voltage drop with mine. Just had my first kid 9 months ago so all work stopped, I’ve came to the conclusion to just replace the harness with a new aftermarket one. 45 year old wiring is going to fail at one point and I’ve got too much money in it to skimp on the electrical.
     

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