2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

91 FC Voltage?

Old Dec 12, 2007 | 03:44 PM
  #26  
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From: Central Iowa
Originally Posted by Icemark
ignition switch will have nothing to do with the alternators output unless you have a non stock alt, that is not wired correctly.
I just installed an S5 alt and wired the S? terminal to the positive terminal, going straight to the + terminal on the battery (however that pic showed in a recent thread), BUT my old stock alternator, new as of the last 1.5 years, acted about the same. Like I said I was seeing 13.8-14.1V. Because of all the stress my battery has seen it's probably time for another one once I fix the slow turnover issue.
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Old Dec 13, 2007 | 12:12 PM
  #27  
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From: Buenos Aires, Argentina
Thumbs up

Originally Posted by Icemark
Should be fine then... your alt is probably just old.

Unless it is dropping or staying under 13.5 voltson a regular basis then I wouldn't worry, as you probably have a little life still in it.

On the other hand, now would be the perfect time to rebuild the alt... before anything fails miserable and strands you.
This I will do.

Thanks to everyone for your time and feedback!
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Old Dec 13, 2007 | 12:21 PM
  #28  
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From: Oakland CALI!
Is there any company that makes high output altenators for our cars. Or is the only option to upgrade to a FD altenator. In that case does anyone have the write up for fitting a fd altenator onto a S4
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