 Upgraded Coil, now Alternator Light on |
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| Tastyplacement |
 Nov 10 2016, 07:59 AM
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Newbie  Group: Members Posts: 39 Joined: 31-August 16 From: Austin, TX Member No.: 20,358 Region Association: MidAtlantic Region  |
914world, please save me again from my mediocrity.
2316cc T4. I used to have an Empi distributor with Bosch blue coil. I upgraded to pertronix 45kv 0.3 ohm coil and pertronix distributor. Great spark now, easier starts, but my alt. light stays on. Previously, i would have to get rpm over 2500 to make light go off, now no spike in rpm will make the light go off. I have led bulbs in dash, and i am willing to do the 100 ohm resistor mod to the alt light if that is necessary. |
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| Tastyplacement |
Nov 10 2016, 07:01 PM
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Newbie Group: Members Posts: 39 Joined: 31-August 16 From: Austin, TX Member No.: 20,358 Region Association: MidAtlantic Region |
Thanks everyone...
So weird: changed back to incandescent bulb. It shows not very bright when ignition is on. After starting engine it dims as RPMs increase, but never really goes out. The previous owner had done a strange thing: he had wired a resistor in SERIES with the alternator light--not in parallel as the tutorials indicate to "excite" the alternator. I have that resistor removed right now. |
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| peteyd |
Nov 10 2016, 08:01 PM
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Senior Member Group: Members Posts: 743 Joined: 27-March 08 From: Elora, Ontario, Canada Member No.: 8,858 Region Association: Canada |
QUOTE(Tastyplacement @ Nov 10 2016, 05:01 PM)  Thanks everyone... So weird: changed back to incandescent bulb. It shows not very bright when ignition is on. After starting engine it dims as RPMs increase, but never really goes out. The previous owner had done a strange thing: he had wired a resistor in SERIES with the alternator light--not in parallel as the tutorials indicate to "excite" the alternator. I have that resistor removed right now. What year is your car? 1972 was different in that it has a diode inline with the gen light. Im not able to describe its actual function. Maybe this thread will help you, http://www.914world.com/bbs2/lofiversion/i...hp?t262302.html |
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Posts in this topic
Tastyplacement Upgraded Coil, now Alternator Light on Nov 10 2016, 07:59 AM
Vacca Rabite perhaps your voltage regulator is going bad.
Do yo... Nov 10 2016, 08:25 AM
Kansas 914 I thought the ALT light needed to be incandescent ... Nov 10 2016, 08:29 AM Dion
I thought the ALT light needed to be incandescent... Nov 10 2016, 08:45 AM Tastyplacement Got it. I have some incandescents that I saved, I ... Nov 10 2016, 09:01 AM pbanders Suggest you read this and follow the appropriate t... Nov 10 2016, 12:28 PM stugray I have an LED for my alt light, but I put a 75 Ohm... Nov 10 2016, 12:40 PM pbanders
Thanks everyone...
So weird: changed back to inc... Nov 11 2016, 08:08 AM pbanders BTW, because the current through the alternator li... Nov 11 2016, 08:20 AM Tastyplacement Checking everything--previous owner had mixed up D... Nov 11 2016, 06:35 PM pbanders
Checking everything--previous owner had mixed up ... Nov 12 2016, 12:06 AM Bartlett 914 So I assume the cable from the back of the alterna... Nov 12 2016, 10:49 AM |
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