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Registered
Join Date: Aug 2005
Location: Between Detroit and Toledo
Posts: 117
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Carrera alternator in an SC???
I took my alternator out to have it tested. The auto parts store in my town said they couldn't test it, so I decided to see how much a replacement would be. Got the number off the back (Paris Rhone 911 603 120 05) and when I searched for it on this site, I got this: Alternator, New, 911/911 Turbo (1984-89), excludes 1989 C4. Now how do I tell if I have to do the regulator move or not?? Thanks, Mike.
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1981 911 SC Black / Black & Tan sunroof coupe. Run like the wind...straining the limits of machine and man... (Peart) |
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04-29-2007, 05:46 PM
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Join Date: Aug 2005
Location: Between Detroit and Toledo
Posts: 117
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Can anyone help?
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1981 911 SC Black / Black & Tan sunroof coupe. Run like the wind...straining the limits of machine and man... (Peart) |
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04-30-2007, 05:14 AM
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Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,453
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your '81 would not have the longer 90A unit that carreras use. to use it, a carrera fan housing would be needed, or have yours machined deeper. '81 is still external regulator, carrera is internal. not a big deal. just remove the 81 regulator and don't use the black wire that used to go to the brush pack on the '81.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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04-30-2007, 05:29 AM
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Location: Between Detroit and Toledo
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Thanks for the help, again. I used a lot of you help to do my trans. Cheer, Mike.
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1981 911 SC Black / Black & Tan sunroof coupe. Run like the wind...straining the limits of machine and man... (Peart) |
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04-30-2007, 07:53 AM
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If you do use the newer internally regulated alternator, I think you'll also need a small resistor (I don't know the proper value) wired in parallel with your alternator idiot light to assist in "exciting" the Carrera alternator.
Jerry M '78 SC |
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04-30-2007, 08:09 AM
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Moderator
Join Date: Dec 2001
Posts: 9,569
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Search here under "zero-ampere RPM" and "early_s_man" to learn all about that resistor.
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'66 911 #304065 Irischgruen ‘96 993 Carrera 2 Polarsilber '81 R65 Ex-'71 911 PCA C-Stock Club Racer #806 (Sold 5/15/13) Ex-'88 Carrera (Sold 3/29/02) Ex-'91 Carrera 2 Cabriolet (Sold 8/20/04) Ex-'89 944 Turbo S (Sold 8/21/20) |
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04-30-2007, 08:10 AM
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1978 Porsche 911 SC 3.0
