Quote:
Originally Posted by oldiesel
You will not find a woodruff key slot on any car alternator that i have seen or in the pulley either. Make sure the pulley is a good fit on the shaft,that it has not worn the shaft or pulley from being loose.When you are sure the fit is good(it should push on by hand but once it is all the way on NO perceptable play between shaft and pulley) The best way is with an impact wrench but if you dont have access to one you can use a box wrench for the big nut and an allen wrench in the end of the shaft to keep it from turning,get it as tight as you can and then check it againg after a few miles. Don
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I cannot agree with the the first part of the above statement here is a pic of parts of my Alternator show that the parts have the slots for the Woodruff Key and I believe that is the key is between the Fan and the Washer.
Impacts Wrenchs work great on stuff like Alternators (if your are in doubt use Blue Loctite on the threads when you install the shaft nut). Most often the Impact Wrench will snatch of the nut with no need to otherwise hold on to any thing. When you assemble; run the nut down (with Loctite on the shaft threads) by hand as far as you can and squeeze the trigger on the Impact. When that alternator starts to rotate stop squeezing the trigger and let it stop and repeat the process 1 more time.
While I have an Air Compressor and Pneumatic Impact Wrenches I most often use a 12 volt battery powered one that I got from Harbor Freight (when on sale are about $21, I bought 1 for each of my 4 vehicles) that are sold for dealing with the lug nuts during a Tire change but can be used for most everthing a regular Impact Wrench can be used for. Clip it to the Car Battery or pug it into the Cigarette lighter socket.
Besides replacing a Pneumatic Impact wrench it speeds up and makes tire rotation easier.
