Replacement Motor for a Vintage Thorens TD 160 Turntable

I would like to thank everybody again for their helpful comments. 

So, ... as I mentioned above, my son took his TT to the local shop for a look-see.  He asked the shop to pay special attention to the big caps and other passives.  The shop reported back that the caps and other passives checked out ok.  The motor checked out ok too. 

The problem was far more pedestrian.  There is a little metal arm that adjusts the belt when changing platter speeds.  The shop said the metal arm was slightly bent and somehow affected the platter start-up.  Not seeing the TT or its innards, it is hard for me to visualize exactly what my son described.  But straightening the metal doo-hickey fixed the problem.

The shop put a tiny drop of oil into the motor and cleaned what needed to be cleaned.  Total cost:  $70. 

BIF

Motors either work or they don't. It is a high probability that the pully is slipping on the shaft. If there is no grub screw to tighten turn the motor up side down. This will be a fun job. The platter and sub platter have to come off and the tonearm tied down. Or you can just take the motor out. Get some ultra thin cyanoacrylate glue. Satellite City makes a great product. Place a drop or two at the junction of the shaft and the pully and capillary action will suck it right in. Leave it upside down over night then put it back together and give it a spin. Let us know what happens.

I’ve opened many Thorens motors, there is nothing to go wrong. Check the oil in bearing, belt....
the pulley is meant to slip on the axle, it’s a clutch.
If I can help anymore send me a message....

Thanks again.  So far, the fix seems to be working. 

I just bought my son an Ortofon 2M Bronze for his birthday, which I think will be good match for the Thorens TP 16 arm (7.5 grams effective mass) and his system. 

I checked the Vinyl Engine website and used the cartridge compliance tool.  The Ortofon 2M is a high-compliance cartridge that should mate well with the TP 16 tonearm.

I'll report back as soon as I mount the cartridge.   
    
BIF