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Thread: converting Alt. problem 4age 20v / te72

  1. #1
    Join Date
    Dec 2013
    Saint-Jean, QC

    Icon3 converting Alt. problem 4age 20v / te72

    Hi guys !

    I'm wondering if someone else ever had this problem.. I'm swapping a 20v bt in my 80' corolla liftback ! But i wanted to kept the 20v original Alternator ( has 3 wires pin out ) and my te72 has only 2 wires plugs...

    Can someone help me with that ?

    Thanks a lot !!

  2. #2
    Join Date
    Nov 2012
    Brampton, Ontario

    wiring diagram for te72 (1980) suggests that alt is 3 wire, externally regulated? No idea whats going on there, wire the 20V alt as shown above and scrap te72 alte wiring altogether.

    for reference this is what I was looking at

  3. #3
    Join Date
    Nov 2006
    South Lyon Michigan
    My guess is that Toyota is only trying to compensate for running smaller size wire gauge in the harness, to the junction point in ?
    There isn't any diodes shown after the alt. Dave W

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