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Dear wise-folk, turntable motor grinding after oiling?

This is a 40 year old turntable, a high quality belt drive Pioneer PL-41. After dropping a couple drops of 3in1 oil into the motor lubrication point (the manual says to lube it regularly), the motor developed a quiet grinding sound.  It took five hours of play over a month before I noticed it with my ear next to the platter.

Did I stir up some gunk in the motor?  Thanks in advance for any suggestions!  You are so helpful!

PS This sounds like a pinch of sand is in the motor, but the grinding/crunching sound is quiet.
audibleaudio

Showing 1 response by mattmiller

mattmiller's avatar
mattmiller
1,479 posts
 
Sadly it sounds like the bearing is going bad these things do wear out especially if it runs dry. Or improper maintenance over the years has left it in this condition. By oiling it you have no doubt loosened things up. If you grab the motor spindle can you move it up/down/ back/fore?? If you CAN that would surely indicate a bad bearing.


Matt M
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