Thorens motor knocking/tickling noise - solved

[Zen Mod]

well - just found culprit for tickling sound in Thorens motors ;

I made extensive research on net and all I can find are unfortunate attempts in solving that issue

rotor magnet cylinder is filled with two equal plastic cores/bushings ;

but - after many hours of operation - there is slight looseness between plastic cores and magnet and that is reason for magnet "rocking" on cores during revolutions

solution : buy some super glue , and pour some of it on both tops of magnet cylinder - between magnet and shoulders of plastic .

problem solved

[Zen Mod]

you must open the motor , drilling points where three stubs are pressed on motor body , and later you must replace them with new ones ( use generic tapped spacers cut to same length) .

whatever you do after removing these tree stubs - use just hands ; you do not need any tool ,and that way you're preventing any damage possibility .

magnet is just pressed on spindle ;

as reminder - there is double metal washer on each side of magnet/shaft combo

dismantle everything and be careful to put magnet back on spindle in same orientation - because of rotating orientation ; anyway - side with shorter center hole part and additional small plastic "ring" is lower -bottom side

clean/wash bearings and shaft with benzin or alcohol

put several drops of super-glue right where I mark with red on attached pic - between ferite and plastic shoulder; glue both sides , off course

wait half hour before motor completing procedure

use graphite grease for shaft/bearings - thin oil is story for little kids , obviously .

[kevinkr]

Which motors specifically does this affect?

Obviously not a TD-124, 121, 224, 135..

I never had this problem with my TD-125 either..

More useful tip if you let people know which motors it affects.

[Zen Mod]

all looking like this ( pic from VE ) ;

if I remember correctly - there are both 110Vac and 13Vac ( via controller) versions

[kevinkr]

The motors in TD-125 MKI and MKII are quite different than the motor shown so I can't say whether or not this fix would work in them, OTOH I haven't encountered problems with either version of the TD-125 motors. (Different voltage versions)