Is that a major project?
I would need some advice on that one...
Probably would prefer the weight method...
OB
I would need some advice on that one...
Probably would prefer the weight method...
OB
After many frustrating hours, I have my table behaving respectably.
The solutions:
1. Apply as much weight as close as possible to the fulcrum point in the form of fishing weights. (per El Gippo)
2. The surface of the rubber cueing rest was very slick from years of use. I think that because of this, the arm was coaxed towards the center of the record instead of dropping straight down.
I used some acetone on a cue tip to give the rubber some bite.
3. Increased weight at stylus to 1.75 grams.
If I cue very carefully at the beginning of the record, the above seems to be working. (Manually cueing also works.)
Solved the speed issue by using a file on the drive spindle (like a lathe) and polishing with emery cloth.
Did this a little at a time and kept checking with a strobe disk until acheiving the correct speed.
Very pleased with the sound!
OB
The solutions:
1. Apply as much weight as close as possible to the fulcrum point in the form of fishing weights. (per El Gippo)
2. The surface of the rubber cueing rest was very slick from years of use. I think that because of this, the arm was coaxed towards the center of the record instead of dropping straight down.
I used some acetone on a cue tip to give the rubber some bite.
3. Increased weight at stylus to 1.75 grams.
If I cue very carefully at the beginning of the record, the above seems to be working. (Manually cueing also works.)
Solved the speed issue by using a file on the drive spindle (like a lathe) and polishing with emery cloth.
Did this a little at a time and kept checking with a strobe disk until acheiving the correct speed.
Very pleased with the sound!
OB
Hey guys did anyone ever have any of there thrustplates made? i cannot find a place to make em please let me know . willing to pay for your time etc. thanks alot,dave
jeeves said:
I can have one made for you. I assume you are the only one left still looking. Could you measure the diameter (inside of the cap) for me? I gave up on my PL-41 and it is boxed up (you don't need a parts unit, do you? new thrust plate included, motor suspected bad. Make an offer, its a short drive). I assume they'll charge me about the same, but who knows? I just had something for my new TT project (ROK belt drive) built, and it cost 3x what I thought it would. I probably can't make it to the shop until sometime next week, so it will be a week or more before I can get it to you. PM me if you are interested.
pj
pj
Pioneer PL 41 help
Hello
I had all the same issues with all 3 of my PL 41's, thrift store,friend,ebay
2 of the 3 bearing thrust pads had cracked.
What I did was make new thrust pads out of teflon sheet, they all work fine, the dimple came after a few hours running the tables.
One thing I did was to polish the spindle to a mirror finnish including the tip, then clean and rebuild the bearing housing adding the teflon thrust pad, I tried several weights of oil I found mobile 1 0w40 was the best so far.
One thing polish the brass motor pulley, and use the correct belt, I didn't have any speed problems whatsoever.
I also had lead in groove issues, what I did was rebuild the arm Q mechanism using 300,000 cst silicone all was good then.
I also cleaned and reset the arm bearings for little to no play, I have no tracking problems whatsoever now.
One thing im looking into is removing the old arm and q'ing and replacing it with a Rega RB 250 or RB300 arm. the geometry is on the money just enlargine the arm mount hole will do the job.
I think once the PL41 is cleaned, the bearing rebuilt and the motor lubricated it is a pretty good performer.
Dead quiet running,
Another thing I'm looking into is having the original platter mat ring machined off the top surface of the platter and then using a standard mat instead of the 2 piece that pioneer used, I like the looks but it makes a clamp impossible to use, and id like to try differnet platter mats on this table, like a felt mat for example.
bob
Hello
I had all the same issues with all 3 of my PL 41's, thrift store,friend,ebay
2 of the 3 bearing thrust pads had cracked.
What I did was make new thrust pads out of teflon sheet, they all work fine, the dimple came after a few hours running the tables.
One thing I did was to polish the spindle to a mirror finnish including the tip, then clean and rebuild the bearing housing adding the teflon thrust pad, I tried several weights of oil I found mobile 1 0w40 was the best so far.
One thing polish the brass motor pulley, and use the correct belt, I didn't have any speed problems whatsoever.
I also had lead in groove issues, what I did was rebuild the arm Q mechanism using 300,000 cst silicone all was good then.
I also cleaned and reset the arm bearings for little to no play, I have no tracking problems whatsoever now.
One thing im looking into is removing the old arm and q'ing and replacing it with a Rega RB 250 or RB300 arm. the geometry is on the money just enlargine the arm mount hole will do the job.
I think once the PL41 is cleaned, the bearing rebuilt and the motor lubricated it is a pretty good performer.
Dead quiet running,
Another thing I'm looking into is having the original platter mat ring machined off the top surface of the platter and then using a standard mat instead of the 2 piece that pioneer used, I like the looks but it makes a clamp impossible to use, and id like to try differnet platter mats on this table, like a felt mat for example.
bob
Hi, first post here. I was wondering--could the speed issues mentioned have something to do with the different capstans (one for 50Hz, one for 60), or having the line frequency switch incorrectly set? Also, I'm probably going to be in the market for one of those delrin thrust plates, if anyone has one for sale. Lastly, do I want a low-compliance cartridge for the high-mass arm?
Hi, I just found this site and thread. I have a PL-51A with the same bearing issue, and also would be interested in the delrin replacement. I would love to get it up to 100% performance. I also need the dust cover hinges and a new bulb for the light by the headshell, if anyone can point me to a source. Thanks.
I should have had the shop build a pile of 'em. I could practically go into business. They are a nice turntable that tends to be really, really cheap. My motor runs smooth as can be. It's about as vibration free as my papst.
Now that I have a Rek-o-kut belt drive up and running, I'm in no hurry to return to the Pioneer. I think the speed problems may well be due to excessive platter run out. The ROK has about none, while the pioneer has at least 1/16". The platter isn't bent or damaged, I just guess that the casting is a little out of round and/or the hole isn't quite centered. If anybody wants a PL-41 for parts, let me know.
pj
Now that I have a Rek-o-kut belt drive up and running, I'm in no hurry to return to the Pioneer. I think the speed problems may well be due to excessive platter run out. The ROK has about none, while the pioneer has at least 1/16". The platter isn't bent or damaged, I just guess that the casting is a little out of round and/or the hole isn't quite centered. If anybody wants a PL-41 for parts, let me know.
pj
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