Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Analogue Source Turntables, Tonearms, Cartridges, Phono Stages, Tuners, Tape Recorders, etc.

Thorens TD160 knocking sound
Thorens TD160 knocking sound
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 12th January 2006, 09:14 PM   #1
jives11 is offline jives11  United Kingdom
diyAudio Member
jives11's Avatar
Join Date: Mar 2004
Location: Hampshire
Default Thorens TD160 knocking sound


My late fathers thorens TD160 has had no real use for 15 years. On turning it on there is a low frequency knocking sound which is sync'd with the platter rotation. I cannot see anything fouling the platter underneath.

Q: anybody any suggestion on what this could be. Is this a typical symptom of bearing wear ?
  Reply With Quote
Old 12th January 2006, 09:26 PM   #2
Netlist is offline Netlist  Belgium
diyAudio Moderator Emeritus
Netlist's Avatar
Join Date: Jan 2003
You can mount the platter upside down and see if you still got the sound. Here's one of the best links around about the TD160.

  Reply With Quote
Old 22nd January 2006, 11:21 AM   #3
AndrewT is offline AndrewT  Scotland
diyAudio Member
Join Date: Jul 2004
Location: Scottish Borders
you can lift off the outer platter to give you access to remove the inner platter and examine the bearing spindle.
Just remove the belt through the little keyholes until it drops off the inner platter. Lift the inner platter rotating it side to side to help air into the bearing to release the spindle from the slight vacuum.
It's a bit more fiddly to reassemble the belt but you must ensure it stays oil free and it might be better to wear some gloves ( no grease from your fingertips). Check the belt for cracks and/or tears/nicks. It should be completely smooth. This belt fault will not coincide with platter rotation.

Clean out the old oil (if it's still there). Refill with a ml or so.
Place the inner platter back on and rotate it by hand to allow it to fall all the way down to the bottom of the well. The better the fit of the bearing the longer this will take. A worn bearing will take only a couple of seconds, a tight bearing might take as long as a minute. If you have added too much oil it will overflow out of the well so be prepared to mop up any excess before it spreads out all over the rest of the underside.
regards Andrew T.
  Reply With Quote
Old 24th January 2006, 11:58 PM   #4
AudioOrigami is offline AudioOrigami  United Kingdom
diyAudio Member
AudioOrigami's Avatar
Join Date: Feb 2005
Location: scotland
Send a message via MSN to AudioOrigami Thorens TD160 knocking sound
the pulley on a 160 is a plastic 2 piece unit...it has a spring inside and a brass collar on top ...this acts as a clutch

i have found on some td160s they need the pully removed and cleaned...a little oil on the top of the motor bearing ..and rebuild

as u put the brass lock collar on try pushing it down as u tighten the wee alan grub screw...and see if that helps

let us know and best wishes
  Reply With Quote


Thorens TD160 knocking soundHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Thorens TD 160 knocking sound on motor pulley John Wilson Analogue Source 3 6th June 2010 09:05 PM
Thorens TD160 capacitor Mick_F Analogue Source 2 4th July 2005 11:54 AM
Thorens TD160 belt pmeyer Analogue Source 3 30th August 2003 04:56 PM
Cartridge to use in Thorens' TD160/TP16 Merijn Analogue Source 1 30th October 2002 10:39 PM

New To Site? Need Help?

All times are GMT. The time now is 10:35 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio