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04-03-2020, 02:03 AM | #1 |
Senior Member
Join Date: May 2010
Location: muskegon, mi
Posts: 297
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rebuilt generator
bought a rebuilt generator off the net and it squeals. the seller says it is a 2 bearing unit and they are noisier than a one bearing one bushing unit. is this true or do i have defective bearing(s)?
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04-03-2020, 06:17 AM | #2 |
Senior Member
Join Date: Apr 2015
Location: Saint Cloud Mn
Posts: 745
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Re: rebuilt generator
Defective
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04-03-2020, 07:09 AM | #3 |
Senior Member
Join Date: May 2010
Location: Largo Florida
Posts: 7,225
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Re: rebuilt generator
Doesn't make any difference, shouldn't squeal. Sounds like at least one bearing has a problem.
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04-03-2020, 07:32 AM | #4 |
Senior Member
Join Date: May 2010
Location: Hebron, CT
Posts: 432
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Re: rebuilt generator
No pun intended but it sounds like a bad resource. Send it back and get a refund.
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04-03-2020, 07:34 AM | #5 |
Senior Member
Join Date: Jan 2016
Posts: 2,101
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Re: rebuilt generator
A while ago i bought a used rebuilt generator from a "reputable" electrical shop that does alternators and generators. Not for the Model A.
It didn't sound right so I took it apart. Other than a nice paint job and new brushes that is all they did to the unit. I agree with CT, but I doubt they will pay for shipping. Try changing out the bearings yourself. |
04-03-2020, 07:38 AM | #6 |
Senior Member
Join Date: Apr 2013
Location: Northwest CT
Posts: 1,092
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Re: rebuilt generator
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04-03-2020, 07:58 AM | #7 | |
Senior Member
Join Date: Aug 2018
Posts: 2,332
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Re: rebuilt generator
Quote:
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04-03-2020, 08:00 AM | #8 | |
Senior Member
Join Date: Aug 2018
Posts: 2,332
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Re: rebuilt generator
Quote:
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04-03-2020, 12:43 PM | #9 |
Senior Member
Join Date: Mar 2014
Location: Midland Park,N.J.
Posts: 1,108
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Re: rebuilt generator
some times the front bearing seizes to the shaft and spins in the front housing,never had a good generator make a unusual noise.call and return it.
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04-03-2020, 01:13 PM | #10 |
Senior Member
Join Date: Apr 2015
Location: Saint Cloud Mn
Posts: 745
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Re: rebuilt generator
I just changed my mind. Run it and see if the noise goes away
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04-04-2020, 05:15 AM | #11 |
Senior Member
Join Date: May 2010
Location: muskegon, mi
Posts: 297
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Re: rebuilt generator
thanks for the advice. will return it.
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04-04-2020, 09:27 AM | #12 |
Senior Member
Join Date: May 2010
Location: Central FL, USA
Posts: 1,138
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Re: rebuilt generator
I just went through the generator on my "A" too. Before I replaced the front bearing in it I tried running an alternator. More bad squealing, what! I had it checked (eBay purchased) when I first got it and it checked out Okay. Could it be the water pump which was an unknown property when I purchased the car? Long story, short: the fan belt was the problem. I did a search here on the ..'Barn and found various problem solvers. Candle wax is what did the trick. Very carefully while the car was running I rubbed a short piece of candle against both side of the belt. No more squealing.
Bob-A PS: I had changed to another fan belt when I tried the alternator. Which had caused the squeal. Once the old genny with a new bearing was installed while still using the new fan belt. The squealing continued and I searched and found the solution to the noise. |
04-04-2020, 11:04 AM | #13 |
Senior Member
Join Date: Jun 2015
Location: Red Deer, Alberta
Posts: 5,046
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Re: rebuilt generator
Have you tried oiling the bearings?
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If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! |
04-04-2020, 12:56 PM | #14 | |
Junior Member
Join Date: Jul 2019
Location: Cary, NC
Posts: 9
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Re: rebuilt generator
Quote:
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04-05-2020, 10:28 AM | #15 |
Senior Member
Join Date: Jun 2015
Location: Red Deer, Alberta
Posts: 5,046
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Re: rebuilt generator
I'm wondering if maybe that is caused by wrong brushes or possibly wrong springs on the brushes?
__________________
If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! |
04-05-2020, 10:45 AM | #16 |
Senior Member
Join Date: May 2010
Location: Windy City
Posts: 2,919
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Re: rebuilt generator
Many years ago when I would rework a genny it would then go on my test bench and run at full output amperage load for 30 minutes.
If I did that today people would scream and complain the thing was 'used' because the pulley would show some belt wear, the mounting holes would show it had been clamped by bolts, and the commutator would show a pattern of complete brush contact. Does anybody actually test run rebuilds beyond a 10 second spin with a cordless drill and a socket anymore? |
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