Aurora Armature disassembly... - HobbyTalk
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post #1 of 35 (permalink) Old 04-24-2012, 08:54 PM Thread Starter
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Aurora Armature disassembly...

who has any insight on how to remove the bottom bushing from an aurora arm? Preferable without ruining the shaft or the bushing?

TIA

Dan
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post #2 of 35 (permalink) Old 04-24-2012, 09:37 PM
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hopefully sgrig will be around to tell what he knows. I don't know myself, but have full confidence in sgrig's ability and how to explain it.
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post #3 of 35 (permalink) Old 04-25-2012, 11:55 PM
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I think the "bushing" and the shaft are actually one piece.
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post #4 of 35 (permalink) Old 04-26-2012, 08:32 PM
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I think the "bushing" and the shaft are actually one piece.
Time to get out the lathe!

Neal
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post #5 of 35 (permalink) Old 04-26-2012, 11:37 PM
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Time to get out the lathe!

Neal
Yeah, after I posted that, I realized how unlikely it was that it really was one piece!
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post #6 of 35 (permalink) Old 04-27-2012, 07:37 AM Thread Starter
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Quote:
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Yeah, after I posted that, I realized how unlikely it was that it really was one piece!
you might be right, though... I just destroyed an arm trying to pry that bottom bushing off, assuming it was a pressed on bushing. So I went at it from the other end. Unfortunately I completely mangled the shaft but I have enough of it left to see that it might be a solid unit.

Knowing what I know now, I will try to disassemble one more 'delicately' and post a pic of the shaft for anyone interested.

A quick question:

Are there any issues with the AW arm spinning on the shaft? This isn't a witch hunt, I'm just asking....

Thank you,

Dan
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post #7 of 35 (permalink) Old 04-27-2012, 10:34 AM
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I sure wish Sgrig would chime in on this thread....it's right up HIS alley
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post #8 of 35 (permalink) Old 04-27-2012, 04:25 PM
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I haven't seen one myself, but then again I'm no hot rodder...
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post #9 of 35 (permalink) Old 04-27-2012, 05:12 PM
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Dan, there have been reports of AW stacks turning on the shaft.
I haven't had one, but I know three people who have.
one of the reasons sgrig only uses original Aurora armatures for rewinds.
Dan, we need commutator plates. help! please!
if you could just point us in the right direction.
I would really appreciate any help you can provide.
of course if we could buy directly from you, that would be super too.
thanx in advance for your kind consideration.
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post #10 of 35 (permalink) Old 04-27-2012, 05:58 PM Thread Starter
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Quote:
Originally Posted by alpink View Post
Dan, there have been reports of AW stacks turning on the shaft.
I haven't had one, but I know three people who have.
one of the reasons sgrig only uses original Aurora armatures for rewinds.
Dan, we need commutator plates. help! please!
if you could just point us in the right direction.
I would really appreciate any help you can provide.
of course if we could buy directly from you, that would be super too.
thanx in advance for your kind consideration.
a comm plate for this armature is just a very simple printed circuit board... with that being said, you could probably make these yourself and along those lines make custom plates with different timing configurations, which would be cool. Al, you might have just created your own cottage industry supplying specialized comm plates for different situations...

Last edited by lenny; 04-27-2012 at 06:58 PM. Reason: added information
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post #11 of 35 (permalink) Old 04-27-2012, 06:46 PM
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First or second release AW Tjet, I had an arm loose on its shaft.
It made crazy revs but hardly moved the chassis! That same chassis was warped so the rt front wheel was off of the track.

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http://www.youtube.com/watch?v=pDXsgvifSpo
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post #12 of 35 (permalink) Old 04-27-2012, 07:57 PM
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And by the looks of things, Joez's cat thinks it was funny or something!!
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post #13 of 35 (permalink) Old 04-27-2012, 09:59 PM
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Quote:
Originally Posted by lenny View Post
a comm plate for this armature is just a very simple printed circuit board... with that being said, you could probably make these yourself and along those lines make custom plates with different timing configurations, which would be cool. Al, you might have just created your own cottage industry supplying specialized comm plates for different situations...
While I grasp the idea of " Timing " on a gasoline engine,I must confess I am a bit lost concerning the concept of "Timing " with regards to an electric motor. Perhaps someone can help me.

Neal
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post #14 of 35 (permalink) Old 04-27-2012, 10:55 PM Thread Starter
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if it's OK to post a link, here's a pretty good thread about timing:
http://www.slotcarillustrated.com/po...ad.php?t=36690
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post #15 of 35 (permalink) Old 04-29-2012, 12:33 PM
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There is no bushing on an Aurora shaft, it's all one piece. AW motors have the bushing and I use my mini diagonal cutters and gear puller to remove them.

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