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 Post subject: Telechron Rotors and a down and dirty fix
PostPosted: Oct Thu 06, 2005 8:06 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 529
Location: Dallas, TX USA
Last night I worked on a clock radio, a Jewel 935, which uses a Telechron movement for the clock. It did not work at all when I pluged it in and when I took it apart, the movement seemed to be sized.<P>I took my cues from the procedure on this site, <A HREF="http://home.neb.rr.com/postmodern/rotors/rotor.html" TARGET=_blank>http://home.neb.rr.com/postmodern/rotors/rotor.html,</A> but I don't have a big soldering iron so I improvised.<P>I heated the movement up on the burner of an electric stove for 45 seconds at high. I tried the heat sink method describe in the web site and added a little oil to the output pinion and waited. I didn't have the time to wait for the 5-7 hours the site mentioned, so as I was looking at the back of the clock where the rotor goes, I thought why not put the rotor in upside down and plug the thing in to see if it would work. It started turning and the oil was accepted into the movement very quickly. The laminations around the rotor acted as a heat sink (the rotor wasn't all that hot anyway so I wasn't worried about melting the covering on the laminations) and provided more surface area contact than the heat sink suggested in the article. Here's what it looks like installed upside down. The red arrow marks the gear where you add oil. <IMG SRC="http://www.angelfire.com/retro2/jimm/jewelrotor.jpg"> <P> I was able to get 3-4 applications of oil into to the rotor before I had to re-heat it. I did this several times in about an hour.<P>I'm sure the method mentioned in the article is better, but this was a "down and dirty" quick method for me because I wasn't going to have the time to spend hours with the rotor. Now the rotor works and is very quiet. It was fairly loud when it first came on.<P>Jim<P>------------------<BR>


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 Post subject: Telechron Rotors and a down and dirty fix
PostPosted: Oct Sun 16, 2005 9:35 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 14631
Location: ID 83301
For years i have simply punced a small hole using a small nail in the side of the smaller back portion near where it goes bigger to avoid hitting the rotors inside .<BR>I make sure to put the hole at the top then add some oil , tap the motor on the table and shake it then very carefully turn the gear by hand . Never forse the gear . <BR>Takes 2 minutes . Motors with worse problems take longer . <P>------------------<BR>


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 Post subject: Re: Telechron Rotors and a down and dirty fix
PostPosted: Dec Mon 31, 2012 5:25 am 
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Joined: Sep Sat 06, 2008 3:04 am
Posts: 28
Location: Ellensburg, WA
Jim662 wrote:
<P>I took my cues from the procedure on this site, <A HREF="http://home.neb.rr.com/postmodern/rotors/rotor.html" TARGET=_blank>http://home.neb.rr.com/postmodern/rotors/rotor.html,</A> The red arrow marks the gear where you add oil. <IMG SRC="http://www.angelfire.com/retro2/jimm/jewelrotor.jpg"> <P> I was able to get 3-4 applications of oil into to the rotor before I had to re-heat it. I did this several times in about an hour.<P><BR>


Does anyone know if
http://home.neb.rr.com/postmodern/rotors/rotor.html
moved to another site? I tried to use http://archive.org to find the old content but it apparently never crawled that site. I remember looking at a lot of sites that talked about the repair of the Techron movements but this one was the best.

Thank you.


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 Post subject: Re: Telechron Rotors and a down and dirty fix
PostPosted: Dec Mon 31, 2012 6:16 pm 
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Joined: Jan Sun 18, 2009 1:40 am
Posts: 2159
Location: Lexington, KY
I think you found the correct site in in the other thread:

http://prepostmodern.com/rotors/

At least that is the best info I have found on those clocks.

_________________
John


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 Post subject: Re: Telechron Rotors and a down and dirty fix
PostPosted: Feb Wed 20, 2013 8:53 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 406
Location: Merrick,NY,USA
Whatever method you employ, use synthetic oil. As it ages, it stays slippery and doesn't gum up.

Personally, I drill a tiny hole with the rotor in a vise and the bit pointing up so metal shavings do not fall into the mechanism. if the rotor is really gummed up I will squirt a little mineral spirits in with a syringe to loosen up the gunk, then follow up with synthetic oil through a needle oiler. 5-10 drops will do. Then I wipe dry and seal the hole with a blob of solder or a dab of JB Weld. Been doing them like this for 20 years with excellent results


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