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About auvelas

  • Rank
    New Member


  • Map Location
    Los Angeles


My Z Cars

  • Zcars Owned
  1. 240z electrical issue

    I appreciate your input guys thank you. I have done all of what you recently suggested Dave I will circle back to original wiring and redo wires and diodes. Hopefully its my diode or bad ground somewhere.
  2. 240z electrical issue

    That is what i did from my first email requesting SOS. I just dont have pictures showing the connections to the b/w to w/b , Y to W. I think i will do another diode with the common one most use 1n5402 and see wha happens.
  3. 240z electrical issue

    Its basically the only 2 wires needing modification. Everything else was not needed and just wrapped. BAT and Earth was also straight forward.
  4. 240z electrical issue

    No tech tip. The wiring looked simple enough to do my own. The picture provided is the T shaped plug for the SL.
  5. 240z electrical issue

    Attach is a picture of wires being used. The diode in place is 1n5406. If you notice how the line of diode faces alternator plug. Many sites show diodes with different #s and now i wonder if that is the problem. I know for certain this diode does stop current being i tested wiring with no diode and car continued running with ignition off.
  6. 240z electrical issue

    I will get pictures by tonight. I will say i followed the MSA wiring but instead of the adapter i simply modified my harness by pulling out the wires needed and doing the same wiring. Guys, what i dont get is when everything is connected voltage is low and should be high 13 to 14 from alternator. I rev motor and alternator makes loud noise. Almost like belt is making noise but its not. It specific to alternator because when negative terminal is disconnected the noise goes aways and alternator sound normal and voltage range goes to 13/14. The battery and alternator tested and fully charged by the way.
  7. 240z electrical issue

    Im new to forum and new to the 240z. Recently purchased a 71 240z bone stock L24. Im upgrading the 60amp alternator and have followed the DIY. Seemed easy and straightforward. Tested alternator to ensure its working well. Tested battery also good. I modified harness and eliminated old regulator and covered harness socket. L to 12v source via fusible link white wire and S to b/W (SWITCH 12V) with diode. Diode line faces alternator. Everything good so far. Here is what happens. Tested while running with volt meter battery and read 12.6 (not good) I remove negative cable from battery and it reads 14.5(good) the alternator sounds different meaning regulator is put to work. I connect negative cable back on and voltage drops back to 12.6 something happens with that battery ground. I dont get it. Please help you Z experts.
  8. auvelas