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Alternator brush replacement. Do these need it?
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Topic: Alternator brush replacement. Do these need it? (Read 1493 times)
dpcarson
Member
Posts: 405
Lillington, NC
Alternator brush replacement. Do these need it?
«
on:
March 01, 2015, 09:44:19 AM »
Hey guys. On the recommendation of another member, while I was waiting on other parts to plug the engine back in I decided to pull the alternator apart and clean and check the brushes. Here is where they are now. The wear indicator is right at the edge of the housing when disassembled. Do these brushes need to be replaced?
Thanks for the input and feedback.
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In war, there are no unwounded soldiers.
BobB
Member
Posts: 1568
One dragon on the tail of another.
Re: Alternator brush replacement. Do these need it?
«
Reply #1 on:
March 01, 2015, 10:40:48 AM »
You will probably get a year or two out of those brushes. But as long as you have come this far, I would replace them. It's cheep and easy.
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Chrisj CMA
Member
Posts: 14779
Crestview (Panhandle) Florida
Re: Alternator brush replacement. Do these need it?
«
Reply #2 on:
March 01, 2015, 10:57:12 AM »
You wear through the holes before you get to the minimum wear indicators. I don't like hitting the holes. I use the hole as the safer wear indicator so Id say you have a 5-8K miles left on them. But as said, they are so cheap and you are there, why not change them.....
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dpcarson
Member
Posts: 405
Lillington, NC
Re: Alternator brush replacement. Do these need it?
«
Reply #3 on:
March 01, 2015, 11:09:25 AM »
OK.. Thanks guys. New brushes are already ordered but waiting on them delays me putting the engine back in again.
I am fighting impatience.
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In war, there are no unwounded soldiers.
98valk
Member
Posts: 13490
South Jersey
Re: Alternator brush replacement. Do these need it?
«
Reply #4 on:
March 01, 2015, 01:30:31 PM »
see my posts, the wear limit line is 3/8" past the holes, so u have many, many thousands of miles to go. make sure u clear out the rear bearing
http://www.valkyrieforum.com/bbs/index.php/topic,72470.0.html
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1998 Std/Tourer, 2007 DR200SE, 1981 CB900C 10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp
"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798
dpcarson
Member
Posts: 405
Lillington, NC
Re: Alternator brush replacement. Do these need it?
«
Reply #5 on:
March 01, 2015, 01:58:23 PM »
Thanks CA. I had already read your post while trying to learn more. Thanks for posting that. Great info.
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In war, there are no unwounded soldiers.
Tfrank59
Member
Posts: 1364
'98 Tourer
Western Washington
Re: Alternator brush replacement. Do these need it?
«
Reply #6 on:
March 01, 2015, 05:32:33 PM »
Quote from: CA on March 01, 2015, 01:30:31 PM
see my posts, the wear limit line is 3/8" past the holes, so u have many, many thousands of miles to go. make sure u clear out the rear bearing
http://www.valkyrieforum.com/bbs/index.php/topic,72470.0.html
My Valk has just under 34K on it, so maybe this isn't an issue yet. Based on what I'm reading here and in other posts it seems impossible to check the wear on the brushes without taking out/apart the alt? I know some I've seen have a way (little screw plugs) to pull the brushes without removing the unit.
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-Tom
Keep the rubber side down. USMC '78-'84
'98 Valkyrie, ‘02 VTX 1800, '96 Royal Star, '06 Drifter, '09 Bonneville, '10 KTM 530, '04 XR 650, '76 Bultaco, '81 CR 450, '78 GS 750...
Ricky-D
Member
Posts: 5031
South Carolina midlands
Re: Alternator brush replacement. Do these need it?
«
Reply #7 on:
March 02, 2015, 10:41:13 AM »
The best way to check your alternator is with a volt/ohm meter.
If it's producing good voltage, (enough to charge the battery) I
would suggest to leave it alone.
The most common failure of the Valkyrie alternator has been the
windings on the armature losing connectivity. This would be an absolute
failure that you can't mistake for anything else but a failure. Additionally,
you don't need to remove the alternator to blow it out. I remind you of
that oft quoted saying (fix it till it breaks) and of course, the law of
unintended consequences are always in force.
***
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2000_Valkyrie_Interstate
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