Rebuild an alternator

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(Disassembly)
(Installation and Inspection)
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== Installation and Inspection ==
 
== Installation and Inspection ==
  
* Install your new bearing, but before you do, get a SMALL sharp punch and carefully put a dimple in the race each 1/3 rd the way around. This will prevent the Bearing from EVER spinning in the race. It will be a tiny bit harder to put the cases back together, you might have to tap the halves with a rubber mallet.
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* Install your new bearing, but before you do, get a SMALL sharp punch and carefully put a dimple in the race each 1/3 rd the way around. One may use a dab (small dab) of epoxy to accomplish locking the bearing race. This will prevent the Bearing from EVER spinning in the race. It will be a tiny bit harder to put the cases back together, you might have to tap the halves with a rubber mallet.
  
* Install the bushing. (depends on kit)
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* Install the bushing. (depends on kit) Lubricate the bush as required.
  
* Where the brushes are, at the rear end bell, there should be a small hole that goes through to them. Insert a #40 drill bit or paper clip with the brushes fully compressed up. This will hold them off the slip rings while you insert the end bell. Remember to remove the paper clip or drill before reinstalling the battery or a short could occur while removing the drill or paper clip.
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* Where the brushes are, at the rear end bell, there should be a small hole that goes through to them. Insert a #40 drill bit or heavy paper clip with the brushes fully compressed into their holder. This will hold them off the slip rings while you insert the rotor into the end bell. Remember to remove the paper clip or drill before reinstalling the battery or a short could occur while removing the drill or paper clip.
  
* Before reassembling the end bells to the body, inspect the windings. You are looking to make sure there is no worn insulating paint, or glyph. Also, where the windings terminate, check that there is no melted or splattered solder, and no cracked joints. If needed, Ohm the windings out, but... These usually last forever, and if they failed before, you'd know it...
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* Before reassembling the end bells to the body, inspect the stator windings. You are looking to make sure there is no worn insulating paint, or glyptol. Also, where the windings terminate, check that there is no melted or splattered solder, and no cracked solder joints. If needed, Ohm the windings out, but... These usually last forever, and if they failed before, you'd know it...
  
* Install the  end bells to the body and properly 'clock' it for your application. Be sure the end bells are straight, and (if needed) tap the bearing half end-bell with a mallet. Secure with the bolts.
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* Align the witness mark you scribed into the body during dis-assembly, install the  end bells to the body and properly 'clock' it for your application. Be sure the end bells are straight, and (if needed) gently tap the bearing half end-bell with a mallet. Secure with the bolts.
  
* Lastly, spin it up by hand and ensure it spins free and quiet. Inspect the front fan blade, and reinstall on the car.
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* Lastly, spin it up by hand, in both directions, and ensure it spins free and quiet. Inspect the front fan blade for damage, and reinstall on the car.
  
 
[[Image:image03.jpg]]
 
[[Image:image03.jpg]]

Revision as of 17:26, 12 February 2011

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