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I need help with a Dual 1219 that rumbles?

I am just about at the end of my rope with this 1219. Its been to fix my Dual twice with no result. If I run the test record system noise cut(side two track 6) it makes a lot of noise (I can here it loud and clear in quit parts of the music). I have the 1219 on saw horses with no plinth and if I move the idler off the spindle of the motor while it is running my test record, viola the noise is gone. The motor mount looks good ( no cracks etc.) It obviously does not isolate the motor well enough. Anybody run in to this kind of problem? By the way the motor was exchanged so I do not think it is a bearing. Any suggestions for fixing this problem? Is this actually the way they sounded? No way with 1/2 million sold, thanks Markus
markus1
kyluckyman
14 posts
 
I would replace the idler wheel or have the one you have restored. The rubber on them gets old and hard. Any flat spots will give a thump sound or rumble that can be heard in quiet passages.

I believe Turntable Needles has a program to restore old and worn idler wheels.

You could try Ebay too, but may not see much improvement...but send the worse one for restoration.
normansizemore
601 posts
 
Markus1,

I have a Dual 1229.  It's the same as a 1219, but with a strobe.  I run this table everyday, and it's absolutely dead silent. I can't hear even hear the motor when it's running.  

You either have a bad idler wheel, or the motor needs to be pulled apart and lubed.  This is something I personally do every few years.  I also keep the plater bearing set in synthetic grease and make sure the plater bearing race gets plenty of oil.

I have rebuilt many Dual turntables.  Email me and I will help you sort it out.  My Dual 1229 (I replaced the tone arm with a Grace 747), is better than my Garrard 301.   Honestly, it's one of the best turntables I've ever heard.  

Norman
kyluckyman
14 posts
 
I have a 1229 and a 1219.  Both are dead silent.  I can put a stethoscope on either while playing a record and cannot hear any rumble.

My 1228 on the other hand has a old, tired idler wheel and the rumble is apparent. 
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