The Talking Machine Forum — For All Antique Phonographs & Recordings

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 Post subject: Motor Rumble?
PostPosted: Tue Nov 06, 2018 8:08 pm 
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Victor Jr
Joined: Sat Jan 20, 2018 10:50 am
Posts: 9
I just finished taking down, cleaning the springs, mechanism, and lubricating the two spring motor from my Emerson console. I've installed everything back, calibrated the speed, and played a few records which sound pretty good. The motor has a light rumble when turning, but the rumble completely disappears once the tonearm with needle is applied. I'm assuming the additional drag of the tonearm on the record/turntable takes up the "slack" somewhere in the motor drive mechanism where the rumble disappears.
I've read through much of the subject matter on "rumble" on the forum which usually points to the governor and gear that drives the governor.
Is there specific items I should inspect to eliminate the rumble, or is it just leave well enough alone?

Regards,
Britt


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 Post subject: Re: Motor Rumble?
PostPosted: Wed Nov 07, 2018 4:31 pm 
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Victor II
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Services rendered: phonoboy84@gmail.com
Joined: Mon Jun 22, 2015 2:04 am
Posts: 331
Location: NE Oklahoma
Have you checked the play in the governor shaft? One of the governor balls could be out more than the other/s? I hope this helps.
This machine surrounds hate and forces it to surrender-Pete Seeger.


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 Post subject: Re: Motor Rumble?
PostPosted: Fri Nov 09, 2018 1:16 pm 
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Victor IV
Joined: Sat Jul 09, 2016 7:12 pm
Posts: 1312
Hi Britt:

I agree with Phonoboy, especially if this is a definite vibration you can feel when the turntable spins. It's possible that one of the flat springs holding the ball was replaced at some point and is slightly longer or shorter than the others. (When replacing a broken flat spring, it's a good idea to replace all of them, to ensure that they are all uniform in size and thickness.)

If this is a rumble "sound" or more of a grunting noise, it's possible that this is caused by slight gear wear. Every phonograph or Victrola I've ever owned has emitted some motor noise, which is masked when playing a record.

HTH,
OrthoFan


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