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Double Pulley Assembly

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Re: Double Pulley Assembly

Postby vortrex » 15 Oct 2011 21:41

I have the new shortened version of this pulley for my p5 but it still doesn't appear to fit with right the GT subplatter. There is some play in the motor shaft and if I press it down things line up OK, but is that how it should be? It seems like the motor shaft would eventually pop back up over time and then the top belt would come off. I think it would work OK if I could push the pulley onto the shaft further (so the shaft sticks out the top of the pulley), but when I try to the shaft pushes in also and then the pulley bottoms out against the plinth.
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Re: Double Pulley Assembly

Postby vortrex » 16 Oct 2011 19:53

just want to note that my issue was likely because there was still some glue stuck on the shaft or something. michael says the pulley will seat all the way down so there is only a paper thin sliver of space left between it and the plinth. I had already put some rubber washers to lower the motor, which ended up perfect. my belts are dead centered on the subplatter, so I am going to leave it as it for now.
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Re: Double Pulley Assembly

Postby bacobits » 17 Oct 2011 18:08

That should be fine. How does it sound?
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Re: Double Pulley Assembly

Postby vortrex » 18 Oct 2011 05:52

can't test it yet, my phono stage is not ready. this weekend I'll be able to.
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Re: Double Pulley Assembly

Postby bacobits » 19 Oct 2011 15:49

vortex, how does it sound?
I bet the "boogie" factor goes up.

D
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Re: Double Pulley Assembly

Postby AudioSoul » 22 Oct 2011 00:39

Where can you buy these double pulleys from? Thanks
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Re: Double Pulley Assembly

Postby nabil » 22 Oct 2011 01:24

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Re: Double Pulley Assembly

Postby vortrex » 24 Oct 2011 22:30

I got my rig back up and running. I notice I have a hum/noise coming from the pulley that can be heard when there's silence in the room. is this normal? I don't think it was there with the stock pulley. it's faint, as in you have to be standing right next to the table, but it is there.
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Re: Double Pulley Assembly

Postby Fabio SQ » 30 Oct 2011 03:30

About this little noise, Michel wrote:

"Hi, Fabio,

Put one drop of light oil on the bush bearing and motor spindle just below the pulley. Make sure that the bottom of the pulley has a small clearance of one or half mm from the plastic "neck"(brown color) of the motor. Also check if the thrust bearing is not dislocated.

Should tighten the pulley "finger-tight" only."


I did as suggested and the noise is gone.

Regards,
Fabio.
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Re: Double Pulley Assembly

Postby lordvader » 01 Dec 2011 01:37

I installed one of these pulleys. I love the fact, that once coupled with the TTPSU, I don't need to remove the platter to play 45's.

However, I too am getting noise. It's definitely coming from the motor (tested by removing the belt, and just powering up the motor), just not sure which part of the motor. I currently have a few mm clearance between the pulley and the "neck", and it's definitely been oiled.

Could I have the pulley on too high ?
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Re: Double Pulley Assembly

Postby lordvader » 01 Dec 2011 13:43

Problem fixed.
It seemed the thrust bearing I was using was pushing the motor spindle all the way up.
I had an SRM-Tech thrust bearing that I initially dismissed. I put it back on, and adjusted so it raised the spindle only slightly. Dead silent now.

Everything is awesome !!!

lordvader wrote:I installed one of these pulleys. I love the fact, that once coupled with the TTPSU, I don't need to remove the platter to play 45's.

However, I too am getting noise. It's definitely coming from the motor (tested by removing the belt, and just powering up the motor), just not sure which part of the motor. I currently have a few mm clearance between the pulley and the "neck", and it's definitely been oiled.

Could I have the pulley on too high ?
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Re: Double Pulley Assembly

Postby Etnier » 01 Dec 2011 22:56

Hi to all from a newbie-

Wondering if anyone has figured out if this mod fits, without further modifications, onto a Planar Three with the Reference Subplatter installed??? Michael Lim: care to chime in here??
Rega RP3, TTPSU, Groovetracer delrin, reference subplatter & counterweight, Lim double pulley
Shelter 501-II with Soundsmith Level II, Heed Quasar
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Re: Double Pulley Assembly

Postby bacobits » 02 Dec 2011 02:02

It would fit, but you would lose the capability to play a 45 on the P3.
Unless you add a TT PS from a third party.
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Re: Double Pulley Assembly

Postby Frank_Sm » 02 Dec 2011 03:12

Etnier wrote:Hi to all from a newbie-

Wondering if anyone has figured out if this mod fits, without further modifications, onto a Planar Three with the Reference Subplatter installed??? Michael Lim: care to chime in here??


Unfortunately you would have to do one of two things if you replace the pulley.

The reason being, the Lim pulley works on what would be the 33 1/3 pulley diameter so you would have to purchase the Rega 24V motor kit in order use the power supply from Rega. This would allow you to play both 33 1/3 and 45 rpm records.

The other option is more difficult if you want a dual pulley since the only after market power supply I would recommend works off the 45 rpm pulley so you would need a dual pulley machined with the 45rpm pulley diameter.
This would allow you to play both 33 1/3 and 45 rpm records.

Or as Bacobits noted, you would lose the ability to play 45's.
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