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Original Message
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| RE: 3g alternator conversion |
| By Charlie - 05/31/2004 11:04:55 AM; IP 69.145.33.183 |
Should be an easy conversion, took me about 2 hours. I like to use new alternators, you never know what you are getting in the junk yard. So ask for a 95 mustang with v8. The pulley will have to be swapped with your current alternator, for this you'll need an impact driver, but auto zone, napa etc... will all do that for you. Before you can put your old pulley on the new alternator you need to space it with a washer to keep it from hitting the case, you need only one washer I believe with a 3/4" hole, can't remember the size for sure. Also you need a slightly longer bolt for the adjuster as the new 3g alternator isn't threaded, I believe that bolt, nut combo is 3/8" by 1", don't forget a lock washer.
Next for the wiring there is only one way to. I tried to make my own, but the alternator wouldn't work. I found out later that the charging wire is a special resistance type wire and if it isn't correct the alternator reads too much voltage and won't charge your car. Best thing to do here is get the ford wiring from Ford for a 94 or 95 ford f150, down side cost is about $80, upside comes in the correct length for early mustangs and is in a nice wrapped up loom with all the right plugs and when installed looks just like it belongs there. The harness should be plentiful in the salvage yards or possibly ebay.
Once the connections are done you will not need your voltage regulator, and your voltage gauge in your dash, voltage warning light if equipped will not work. That kind of sucks, but the payoff is bright non pulsing head lights, even at idle with stereo pushing 2 15" fosgate speakers, mp3 changer, radio, crane ignition, while sitting in the rain with the wipers and heater on. I do have to say this is one of the nicer conversions I've done to date. As a side note my stereo had a lot of back ground noise in it, always blamed it on the high power ignition, now the noise is gone.
I was worried about the washer spacing at first, but since of bounced my tach off the 6k rpm point many a time under hard acceleration and have had no problems.
Hope all works well for you.
Charlie
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