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MSL212
Join Date: Aug 2015
Location: New York City
Posts: 81
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1972 911s alternator
Hi,
it seems that i need a new alternator for a highly original 1972 911s (origianl paint). I have received several different solutions. Of course, my first choice would be an NOS alternator, i doubt those are around. What are most people doing? Rebuilding? Buying an old rebuilt alternator? Putting in a modern replacement which has a built in regulator? Any comments, suggestions, options, greatly appreciated. You can PM me or just reply to the thread. Thanks, MARC |
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12-16-2023, 10:10 AM
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PCA Member since 1988
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If originality is important to you, get your old one rebuilt. There are alternator and motor repair shops in most cities.
I don't know why that would be important, becuase the alternator is buried behind the fan where you can't see it. Or are you the concours kinda guy who wants the original tires, wiper blades, and brakes on it too?
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1973.5 911T with RoW 1980 SC CIS stroked to 3.2, 10:1 Mahle Sport p/c's, TBC exhaust ports, M1 cams, SSI's. RSR bushings & adj spring plates, Koni Sports, 21/26mm T-bars, stock swaybars, 16x7 Fuchs w Michelin Pilot Sport A/S 3+, 205/55-16 at all 4 corners. Cars are for driving. If you want art, get something you can hang on the wall! Last edited by PeteKz; 12-16-2023 at 10:59 PM.. |
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12-16-2023, 10:57 PM
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Registered
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In general it is no big deal to refurbish the original alternator and it will be good for another 50 years of service. Just be sure that quality components such as ball bearings are used. With the original alternator you also can keep the original voltage regulator and wiring. Modern replacement alternators often come with integrated VRs which will require some modified wiring.
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Regards, Guenter 73.5 911T, mod |
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12-17-2023, 02:59 AM
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Rosco_NZ
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Some think integrated VR not ideal due to heat. Inclined to agree. Take your external VR in at the same time to be checked and adjusted .. they do drift over time.
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12-19-2023, 10:17 AM
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Eng-o-neer
Join Date: Dec 2011
Location: Los Angeles
Posts: 3,107
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If you know someone who is great at rebuilding, that's the cheapest option and provides all the power and longevity the car needs...If not, it's a bit of a crap shoot in terms of quality.
I'd go with a Classic Retrofit. Depending on what rebuild is available, it might not cost any more than what's available from Pelican, and it will put out a ton more power—particularly at idle. |
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12-22-2023, 07:19 PM
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Registered
Join Date: Jan 2008
Location: sunny buffalo
Posts: 1,006
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Quote:
In 50 years I will be 121 y/o |
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12-23-2023, 03:45 AM
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Lucky
