 Subaru Swap - Alternator wiring, What did you do? |
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| jpnovak |
 Jul 25 2011, 03:26 PM
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#1
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They call me "Nanoman"  Group: Members Posts: 231 Joined: 26-August 09 From: Austin TX Member No.: 10,736 Region Association: Southwest Region  |
Now that the engine is running I need to finalize some of the electrical connections. Notably, the alternator is near the top of the list.
Normally a regulated alternator has 5 connections 12V to battery D+ D- Df GND The Suby alternator is internally regulated so this elminates the Df wire. I need to connect up the D+ and D- to complete the voltage comparator. It looks like the blue D+ wire goes to Pin1 and I send 12V to Pin2 on the alternator. 12V becomes the effective D- wire to complete the circuit on Pin2. Basically, the current across the dash bulb that is a result of a difference in voltage between the alternator and the battery regulates the charge. At least, that is how I understand the wiring. Any thoughts? |
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| strawman |
Jul 26 2011, 12:04 AM
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#2
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Senior Member Group: Members Posts: 891 Joined: 25-January 08 From: Los Osos, CA Member No.: 8,624 Region Association: Central California 
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Here is a cut/paste from the 1998 Subaru Outback factory manual. Hope this helps...
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Posts in this topic
jpnovak Subaru Swap - Alternator wiring Jul 25 2011, 03:26 PM
BIGKAT_83 From the subaru factory manual......
Bob Jul 25 2011, 04:52 PM jpnovak Thanks Bob but that is a much newer alternator tha... Jul 25 2011, 08:01 PM kg6dxn Not a Subie but... On my rotary conversion I ditch... Jul 25 2011, 08:39 PM strawman Just walked out in my garage and looked at my wiri... Jul 26 2011, 12:43 AM
jpnovak Geoff,
Thank you for the listing. The engine is ... Jul 26 2011, 07:38 AM |
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