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  #1  
Old 04-14-2009, 10:21 PM
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Altenator bearings

Is is possible for the bearings in a altenator to go bad and the altenator still charge. This is my daily driver. Not my f350.
 
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Old 04-14-2009, 10:28 PM
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Im not sure about this. If I was guessing,I would say yes,but to a point to where they was about to lock up,and then I think it would charge anymore. Im sure someone else knows more about this than me. Im kinda curios myself if Im not right about this.
 
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Old 04-14-2009, 10:38 PM
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Just wondering Brandon, what symptoms/noises or issues are you having with it if any?
 
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Old 04-14-2009, 11:04 PM
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Yes, the bearings can go bad and the alternator will still be charging away!

But it won't do that for long.

If you've got bad bearings, get them changed and maybe change the regulator/brush assembly at the same time. If the commutator ring isn't severely worn, you've then got an alternator that should be good for another 150,000 miles.

The front bearing is a 6303-2RS. The rear one is a special, wider, bearing, a B10-50D. It's not commonly available, but any good bearing supply house can order one for you. I got mine from a 7.3 driver, John Burroughs, at Alliance Bearing in Van Nuys, CA for about $3.00. 818-988-1880 The front 6303's are around $7. Tell John you want them packed with PolyRex EM.

Pop
 
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Old 04-15-2009, 12:16 AM
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Oooops! The above bearing information is for a 7.3's 6G alternator. I'm not sure what's in your daily driver.

Pop
 
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Old 04-15-2009, 07:49 AM
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Originally Posted by SpringerPop
Yes, the bearings can go bad and the alternator will still be charging away!

But it won't do that for long.
X2 on pops advice, get those bearings changed fast or the inside of your alternator will turn into metal shavings
 
  #7  
Old 04-15-2009, 08:55 AM
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Originally Posted by 61 uni
Is is possible for the bearings in a altenator to go bad and the altenator still charge. This is my daily driver. Not my f350.

For the bearings listed below, check with a company called Motion Ind as well, you should have a couple near you.

https://www.motionindustries.com/mot.../mi/motion.jsp

If you have any problems, send me a PM.. Sometimes they only want to deal with companies.. IF that is the case, let me know, I will call near you and put the bearings in will call. You should be able to pay cash..
 
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Old 04-15-2009, 08:58 AM
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MOTION INDUSTRIES

3740 POWERS COURT
SUITE 400
CHATTANOOGA , TN 37416

Phone (423) 490-0852
Fax (423) 892-6336

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31 CONALCO RD
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109 REGIONAL PARK DRIVE
KINGSPORT , TN 37660

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913 MYATT INDUSTRIAL DR
MADISON , TN 37115

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Fax (888) 721-5278

MOTION INDUSTRIES

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Phone (901) 398-2000
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MEMPHIS , TN 38118 -1514

Phone (901) 525-6871
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114 SOUTH SUGAR HOLLOW RD
MORRISTOWN , TN 37813

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803 PARK AVE
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NASHVILLE , TN 37207

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108 JOHNSTON STREET
TULLAHOMA , TN 37388

Phone (931) 454-0907
Fax (931) 461-0303
 
  #9  
Old 04-15-2009, 09:16 AM
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Originally Posted by Ziggy.
Just wondering Brandon, what symptoms/noises or issues are you having with it if any?
it's got a roaring noise coming from the belt drive. Kinda like when the h20 pump went bad. All of the pully's turned freely except the alt.
 
  #10  
Old 04-15-2009, 09:53 AM
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Thanks for the info Pat. The alt is 20 years old so i'll probably put a lifetime guarenteed reman on it for $79.
 
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