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Registered
Join Date: Aug 2001
Location: Orlando, FL.
Posts: 255
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Alternator ground strap
Where is the best place to attach a new ground strap to the alternator ?. The old one was old and tired and split at the alternator end, but it looked like it was bolted to the alternator casing before it came adrift when I was removing bits and pieces.
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1957 KR 200 Messerschmitt Bubble Car 3 wheeler-my first rear engined air cooled German car,alas long gone!. 1977 911S 2.7 to spend money on 2006 Tundra for acting grownup |
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12-31-2012, 09:54 AM
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Mine ( a '75) is attached from the alt. case to the closest engine case bolt/nut.
Keith |
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12-31-2012, 10:08 AM
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Hi, I'm Andy
Join Date: Nov 2011
Location: St. Paul MN
Posts: 73
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^My 77 is the same way.
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12-31-2012, 10:23 AM
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Join Date: Jan 2004
Location: Docking Bay 94
Posts: 7,023
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Other end attached to the case. Good idea that you're replacing it (I replaced mine a while ago also) they build up a resistance with age.
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Kurt |
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12-31-2012, 11:57 AM
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Join Date: Aug 2012
Posts: 488
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I had a new ground strap made for me by the alternator shop when they rebuilt my alternator.
Picts here of thr ground strap. Huge difference as the old one was cracked and brittle. another alternator/charging light bulb question In the picture, you can see the bolt that my 1980 alternator ground strap attaches to. I believe it's 28 Ft lbs of torque. Once the car was back togeather, I realized I used a normal hex nut on that ground stud, not one that's shaped like the other case nuts. Not a huge deal, and I wasn't about to pull the fan/ alternator to fix it, but worth mentioning. 
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J 911 SC - 1980 911 S - 1977 |
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12-31-2012, 12:23 PM
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Location: Orlando, FL.
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Thanks to all.My 77 car is getting younger all the time with the stuff I am replacing.
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1957 KR 200 Messerschmitt Bubble Car 3 wheeler-my first rear engined air cooled German car,alas long gone!. 1977 911S 2.7 to spend money on 2006 Tundra for acting grownup |
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12-31-2012, 12:53 PM
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Registered
Join Date: Jul 2005
Location: northwestern Ontario
Posts: 20
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changing the alternator ground strap
I take it there is no problem or worry with compromising the case sealing/integrity if one removes the single engine case nut anchoring the alternator strap, cleans surfaces, replaces strap and re-torques to correct value? What is best strap to use? Size, stranded, woven, bare, length? Tx Bri
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Tx Bri |
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02-10-2013, 03:07 PM
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Join Date: Aug 2012
Posts: 488
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I don't believe there is any issues with the case leaking from everything I have read/ experienced.
I had the alternator shop make me one up. It's worked like a champ. Pict below: 
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J 911 SC - 1980 911 S - 1977 |
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02-10-2013, 04:52 PM
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