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Join Date: Mar 2009
Location: Plano, TX
Posts: 511
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exciter wire terminal?
Okay, correct me if I'm wrong. Bolting the alternator up creates the ground; that leaves 2 wires hanging down, the fat hot wire, and the skinny exciter wire.
So, which terminal on the alternator does the skinny wire go to? #1 or #2?  
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1982 928 S Euro 5 speed |
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01-22-2010, 05:09 PM
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Forgot to number the terminals on the pic. #1 is on top, #2 on the bottom, of the lung-shaped disk on the left.
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1982 928 S Euro 5 speed |
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01-22-2010, 05:12 PM
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Location: Colorado Springs, CO
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Really hard to hurt anything hooked up wrong cause of the diodes but.
The blue wire looks like it feeds the coil. I would say that is the excitor post. Check with a Volt Meter but 1 and 2 may be the same.
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82 928 s3&1/2 5 Speed LSD conversion 87 944 N/A 5 Speed (Under Construction) 81 931 (maybe for sale, well their all for sale lol) Always looking for a good deal. Hello, my name is Carl and im a Poschaholic |
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01-22-2010, 09:45 PM
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Weird how your car is just 1 year later than mine and it has a totally different Alternator. I also ended up bumping up my Alternator to a 120 Amp.
  
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1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior 1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior **SOLD** 
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01-23-2010, 05:17 AM
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That is the one I have also, the big one.
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86.5 Porsche 928, 75 Porsche 914, 2.0, 2001 Boxster. |
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01-23-2010, 06:01 AM
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Dano- I have the Paris-Rhone and you have the Bosch. Could that be why they look different?
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1982 928 S Euro 5 speed |
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01-23-2010, 06:01 AM
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Quote:
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1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior 1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior **SOLD**
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01-23-2010, 06:19 AM
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Join Date: Jul 2001
Location: Wilmington, NC USA
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B+ is battery hookup-- 61 is exciter--D- is ground(but no wire) From your picture it looks like a D is stamped on the yellow wire side-a B on the blue wire side. Can't see the top. Look for a 61 stamp then you will be good to go. Hope this helps.
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69 911 2.3Ez 85 928S |
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01-23-2010, 07:01 AM
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Woo-hoo, found the answer to my question. It is #1, the one at the top. It took some searching, but I came across this thread. This Sharkskin site is pretty awesome - tons of pics. And his car is an OB, so that helps a lot because a lot of the info I find when searching for answers are for later models.
SharkSkin - Shark Attack Round Twenty-One - Alternator
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1982 928 S Euro 5 speed |
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01-23-2010, 07:16 AM
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jstobo - thanks for the reply. I found the answer to my question, but I still looked for "61" just because. My alternator does not have a 61 anywhere, but no worries.
Now, on the sharskin site he says that the cooling shroud is pretty much a necessity to keep the diodes cool. I don't have one; could this be what caused my old alternator to fail (it only had 200 miles on it, maybe)? Or was it the fact that that my exciter wire circuitry was / is not working and I had to rev the engine up every time I drove it to get the alt. to self-excite?
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1982 928 S Euro 5 speed |
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01-23-2010, 07:25 AM
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