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Anyone out there rebuild Cox 16Ds?


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#1 Tangmere

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Posted 12 August 2019 - 11:32 AM

It's out of my 1/24 Dino. I foolishly took apart (the star washer) and while it's back together, it's not right and I don't want to run it as it. So, I'd like someone to fix it if possible.

 

Thanks, Mark


Mark Gerrard




#2 Kim Lander

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Posted 12 August 2019 - 01:11 PM

Ask John Havlicek....he is here on this blog...he is the BEST.


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#3 Dave Crevie

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Posted 12 August 2019 - 03:46 PM

I agree. I follow his builds regularly, and have picked up a few ideas to use when I rebuild my old-timers.



#4 old & gray

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Posted 12 August 2019 - 07:15 PM

If ‘m understanding your problem, when you took the motor apart the bronze spherical bushing and star retainer came out, and now you are realizing this was a one way trip.

 

I heartily support contacting John Havlicek as his work is first rate.

 

As an alternative, if you are willing to have a motor which is not “as manufactured”, remove the washer and bushing, drill out the brass where the shaft passes through so that a 6 or 5 mm will slide in, use the armature wrapped in tape to hold the bushing in place then solder it in place. (If I had only known then what I know now.)


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Bob Schlain

#5 Bill from NH

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Posted 12 August 2019 - 09:08 PM

Someone on here, someplace has an article with photos, on how to replace those factory Mabuchi bushings & the brass fingered ring. Obviously, it's more work than drilling out the outer brass holder to fit an oilite bushing (Mabuchi endbell bushings might look best) or a ball bearing. I don't think the article I'm thinking about is one of John's, but I don't recall whose at the moment.


Bill Fernald
 

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#6 Jaeger Team

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Posted 13 August 2019 - 01:30 AM

In the days we used to cannibalize a 26D to get (not very good) "ball bearings". You can see what looks the typical can bushing fix from back then...
Of course that is not a queen shelf motor!
post-6847-0-83366200-1494054785.jpg
Maurizio Salerno

#7 Jesse Gonzales

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Posted 13 August 2019 - 03:35 AM

In the sixties before Mura and Champion began making their own cans I picked up a trick from a champion motor I saw that had the gimbal bearing set in silicone seal. I took to doing this to all my can drive motors by the shim the arm in place, fill the area where the tabs used to be, insert the bearing and add a bit more silicone. The motors were actually quieter this way.

 

Or... Get John to work on it.

 

Jess Gonzales


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