mbphotox
Active Member
Yeah, I can scratch it off with my fingernails.
I've spent the past hour reading tips on this and most of the time it looked fairly simple since the platter was solid aluminium.
I'm a chemistry teacher, so have access to tons of solvents that would work (like Xylene, Acetone, IPA, you name it)
But my platter is either painted or fully covered with PVC, so most of those solvents would probably damage that. (don't quote me on that, I'm a biochemist, always hated organic chemistry )
I've spent the past hour reading tips on this and most of the time it looked fairly simple since the platter was solid aluminium.
I'm a chemistry teacher, so have access to tons of solvents that would work (like Xylene, Acetone, IPA, you name it)
But my platter is either painted or fully covered with PVC, so most of those solvents would probably damage that. (don't quote me on that, I'm a biochemist, always hated organic chemistry )
If you can't find a replacement, you prolly going to need to remove that damaged layer and reapply a new one. Like a polyurethane-rubber spray coating. Several coats to get the surface back to the original thickness (best to mic the thickness of non-damaged area, so you have an idea what the replacement thickness should be).
As for Biochem... "Oxidative-phosphorylation." That's all I'm gonna say.
mbphotox
Active Member
after two hours of rubbing with gasoline and IPA, I gave up...
it's still sticky!
looks like I dissolved the residue and then evenly distributed it across the surface.(went through an entire roll of kitchen tissues)
At the edge, the blank aluminium is shining through now, while in some areas it looks like there's still a ton of rubber deposited.. in the middle, where the belt touches the rim, I can still leave marks with my fingernail, soft and squishy.
new platter... sigh!
it's still sticky!
looks like I dissolved the residue and then evenly distributed it across the surface.(went through an entire roll of kitchen tissues)
At the edge, the blank aluminium is shining through now, while in some areas it looks like there's still a ton of rubber deposited.. in the middle, where the belt touches the rim, I can still leave marks with my fingernail, soft and squishy.
new platter... sigh!
Maybe wrap thick layer of masking tape around the record end of the spindle (not the bearing end). Put it into slow speed, adjustable drill --- and treat the edge with like 600 grit wet/dry sandpaper. Water on the paper may help remove the residue. Spin slow and even pressure. Check for results.
mbphotox
Active Member
got a quote..
they want nearly 200 USD for a new platter..
bought from Analog Seduction.. (if they can confirm that it's the right platter) for about 150 USD (including yet another new belt, this time an original one)
Will try to sell the turntable with new belt and platter, including the Rondo Red MC cartridge for hopefully 900-1000 bucks..
they want nearly 200 USD for a new platter..
bought from Analog Seduction.. (if they can confirm that it's the right platter) for about 150 USD (including yet another new belt, this time an original one)
Will try to sell the turntable with new belt and platter, including the Rondo Red MC cartridge for hopefully 900-1000 bucks..
mbphotox
Active Member
Got this in the mail yesterday 
put on the kitchen balance, we notice that it's not as dense as the old one.. (2.777 kg vs 2.356 kg)
old, with belt still stuck to it
new
and it's also less "shiny" and "smooth" on the surface. It doesn't really feel like a solid layer of Vinyl.
I think it's about 1mm less thick, but that's hard to tell without a measuring device.
Put it on the turntable with the first belt I've received (from an ebay seller) instead of the original one from Pro-Ject that I got along with the new platter.
Measured the speed and it looks okay, I suppose:
That's using the Pro-Ject Speedbox to control the RPMs
With the old belt (now dissolved and glued to the old platter), I measured 33.42 RPM on average, although with higher variance (+0.42 / - 0.36 %) and higher WOW..
Could 1% too slow be caused by the platter that's just lighter? Or would you blame it on the belt?
put on the kitchen balance, we notice that it's not as dense as the old one.. (2.777 kg vs 2.356 kg)
old, with belt still stuck to it
new
and it's also less "shiny" and "smooth" on the surface. It doesn't really feel like a solid layer of Vinyl.
I think it's about 1mm less thick, but that's hard to tell without a measuring device.
Put it on the turntable with the first belt I've received (from an ebay seller) instead of the original one from Pro-Ject that I got along with the new platter.
Measured the speed and it looks okay, I suppose:
That's using the Pro-Ject Speedbox to control the RPMs
With the old belt (now dissolved and glued to the old platter), I measured 33.42 RPM on average, although with higher variance (+0.42 / - 0.36 %) and higher WOW..
Could 1% too slow be caused by the platter that's just lighter? Or would you blame it on the belt?
You lubricated the spindle?
I'd imagine it's the belt.
I'd imagine it's the belt.
mbphotox
Active Member
In 15 years since I've got that turntable, I never used any lube on it..You lubricated the spindle?
I'd imagine it's the belt.
It doesn't require oil?In 15 years since I've got that turntable, I never used any lube on it..
mbphotox
Active Member
you know what... I have no idea...
Will consult the manual, I guess.
It's listed for sale already, but I'm leaving it set up in case the buyer wants to try it.
Might try the oem belt too, I suppose.
In a couple weeks, I'll be done with belts.. pfft.
GT-2000, here I come!