2nd Generation Specific 1986-1992 Discussion

How To Mount A Fd Alt On A S4 T2

Old 03-10-2004, 04:31 PM
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I got a FD alternator for my S4 T2 (in order to make sure the electrical system could handle the 30+ amp Taurus fan), and I couldn't find a way to really mount it solidly. I ended up just throwing it on there with the thick washer for the S4 alt, and tightening it down as hard as I could. But, after the 45 total minutes that my motor has run, I noticed that the alternator was starting to bind up a little bit. Also, I can't get the bolt out. It turns, but it doesn't seem to be catching any threads, and you can't just yank it out either. I figure I'll just hack, or cut through it and get a new bolt.



But anyway, for those of you who have put FD alts on your S4 T2s, what did you do to mount it solidly?
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Old 03-10-2004, 08:02 PM
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Easy it fits with stock belt all you need as a top bolt and nut since the tension bolt location on the fd alt has no thread. you can also use the FC bottom bolt.
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Old 03-10-2004, 08:45 PM
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Whats that 8Ga(?) wire going to the mounting bolt for? I would assume it is a ground for something, but what? I dont remember that being on my car.
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Old 03-10-2004, 10:59 PM
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Originally Posted by CGeek2k' date='Mar 10 2004, 06:45 PM
Whats that 8Ga(?) wire going to the mounting bolt for? I would assume it is a ground for something, but what? I dont remember that being on my car.
It's a ground.. Any ground is a good ground.. Doesn't matter what it's for..
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Old 03-10-2004, 11:20 PM
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With the TII you have to watch out for the IC.



I rotated the positive arm so i wouldn't touch the top of the IC.



I just drilled out the threads and used a bolt too.



I don't think you need to drill though, since I never did when I stole one from my FD



There are slight variations in FD alternators. I know for a fact there are two different types and one is a little more annoy'n to install due to the casting for a bolt that holds it together.
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Old 03-11-2004, 12:43 AM
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Mabey this clarifies a little. I have a 4 Gauge coming off the alt + Side and an 8 Gauge gound directly to my ground distribution plate which is also grounded to the battery directly.
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Old 03-22-2004, 10:05 PM
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I'll be putting on the s5 TII alt on my fc i need to know which wire on the s5/fd alt goest to which wire on the s4 harness.
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