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Old 30th May 2007, 07:31 PM   #1
tubenut is offline tubenut  South Africa
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Default TD166 MKV owners/experts out there

I have been asked to have a look at this turntable. The problem I have is that the platter rubs on the motor pulley as well as the upright hex shaft that I assume protects the pulley...
It is thought that this problem may have come as a result of a transport "accident".

I just can not figure this out. There is not enough space between subchassis and top plate to allow adjustment that would clear the platter from the pulley.

I am wondering if a knock may have moved the sub platter on the spindle shaft... The top of the spindle is 21 mm "high" with the mat or 28.5 mm measuring from sub platter indentation to top of spindle. Does this seem right? Could anyone verify? It seems very high...

I just can not figure why I can not get the platter to clear the pulleys....

Any help thought pointers welcomed.

Anyone got a manual for this beast?
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Old 30th May 2007, 09:30 PM   #2
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I've got a manual for the Mk II of the TD 166, which is also available at

vinylengine

The platter on my 166 (currently for sale for anyone who's reading this!) sits well above the motor pulley. There is a shaft that doesn't seem to do anything near the pulley that sits up another 2 or 3 mm.

If I adjust my suspension "up" I have more than 4 mm clearance b/w the bottom of the subplatter and the faceplate. Can you raise your suspension up to see if it will clear?
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Old 31st May 2007, 04:38 AM   #3
gpapag is offline gpapag  Greece
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Hi
I think that tubenut is right.
If you adjust the suspension, you will be OK
The shaft inwards the pulley is for to adjust the position of the motor/pulley.
There is a stiff spring below it (beneath the top plate).
By turning this shaft clockwise, the pulley goes a bit further from the platter (kind of belt tensioner).
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Old 31st May 2007, 05:54 AM   #4
tubenut is offline tubenut  South Africa
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Quote:
I just can not figure this out. There is not enough space between subchassis and top plate to allow adjustment that would clear the platter from the pulley.

Thanks for your help so far. The problem I seem to have is that even with the subchassis touching hard up against the top plate (IOW, suspension as high as it can go), the bottom of the platter does not clear the pulley/hex shaft next to pulley.

Does anyone have a 166 they could measure the spindle height from sub platter on? Or, how many mm space should there be between the bottom of sub platter edge and the top plate?
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Old 31st May 2007, 10:19 AM   #5
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Quote:
Originally posted by tubenut


Does anyone have a 166 they could measure the spindle height from sub platter on? Or, how many mm space should there be between the bottom of sub platter edge and the top plate?
If the suspension is up against the top plate, the distance b/w the bottom of the subplatter and the subplate is 5/16" (yeah, I live in the US)

The distance b/w the bottom and the top plate would just be the thickness of the top plate then.

Could there be pieces missing inside the bearing shaft?
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Old 31st May 2007, 10:55 AM   #6
tubenut is offline tubenut  South Africa
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Quote:
Could there be pieces missing inside the bearing shaft?
This is slowly becoming a strong suspicion...... The bearing spins really smooth though but a missing thrust plate or ball would just about account for the "space" I am short. Will measure this evening for "about 8 mm, I suspect I only have about 5 mm, or 3/16th for the imperialists among us.

Anyone know what should be inside the TD166 bearing housing if anything? The shaft is a dulled cone shape at the end....
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Old 31st May 2007, 11:02 AM   #7
AndrewT is offline AndrewT  Scotland
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Hi,
I have not seen a 166, so this is guessing from 150/160 layout.

The inside of the rim around the outer platter should sit OUTSIDE the pulley/motor spindle.

Could the inner/outer platter have moved sideways such that the inside of the rim is now fouling the outside of the motor pulley?

The platter rim is usually quite close to the stationary deck plate. This gap can be adjusted from near zero to 6mm or 7mm. It needs to be just high enough that bounce avoids the platter rim hitting the deck.
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Old 31st May 2007, 11:31 AM   #8
tubenut is offline tubenut  South Africa
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Quote:
The inside of the rim around the outer platter should sit OUTSIDE the pulley/motor spindle.
It does, the hex shaft near the pulley rubs the "inside roof" of the platter....
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Old 31st May 2007, 12:39 PM   #9
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I'm loathe to dig inside the bearing housing, but the shaft on my 166 also is a "dull cone", maybe 22' semiangle.
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Old 1st June 2007, 01:55 PM   #10
tubenut is offline tubenut  South Africa
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Anyone know more about the thrust plate on these decks?

Would it be easily visible if in place or not? IE, dull bearing shaft bottom vs shiny plate? I am sure i would need to drain the oil to check. Is it magnetic and easy to fish out with a small magent on a rod of sorts? Will it fall out if I turned the deck upside down (together with the opil if not removed )

Just trying to establish if this plate is actually there or not....
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