JVC Victor Tonearm Counterweight Sag Repair

from websters: 'audiophile', too smart for their own good. 

I am not a plumber, although I can fix a toilet and change a washer.  However, the black washer in your photo says "1/4S" and across from that marking are the letters "OD".  This suggests to me that that washer is 0.25 inches in Outer Diameter.  It suggested the same to the hardware store guy who agreed with me.  (I printed the photo you posted to be sure of getting it right.) Neither of us had a clue as to the meaning of "S". (This hardware store does not carry the exact "Everbuilt" brand, but they have a wide variety of beveled washers from which to choose.). On the other hand, we have the photo of the Everbuilt container showing the 1/2" OD claim. I chose the correct OD only because I think 1/4" is too small.

Another Example of 'Expectation Bias'

assume, wish it could say, I am an audiophile, so is the hardware store guy!

put your glasses on: across from the marks ’00’ (not ’’OD’) (letters or numerals?)

which in plumber speak is size # 00 which, as I wrote, as the package is labeled, is 1/2" OD which is for a valve for a 1/4" line. See the washers for larger lines: 3/8; 1/2; 5/8; letters ’S’; ’L’; ’M’, a variety of beveled and curved faces.

 

lewm, others 

for others, it would be good to add to this

A. Set Screw Sizes

1. the size designation of the allen key _______? for the single set screw in the counterweight tube. Assuming someone has to buy one. I had one that fit, I don’t know it’s size designation.

2. 1/16" size designation of the allen key for the pair of set screws in the arm post that retain the chrome plated collet. Is there a metric equivalent _____? to 1/16" that fits those set screws? (I presumed they would be metric sizes)

Kit with 30 pieces SAE and Metric, $14.

SAE SET

 

0.028", 0.035", 0.050", 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32". 3/16", 7/32", 1/4", 5/16", 3/8".

 

METRIC SET

 

0.7mm, 0.9mm, 1.3mm, 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 10mm.

 

B. Alternate Photos of the concealed brass piece.

My current one has a rubber shoulder washer covering the flat flange at the end and a 8.5mm diameter rubber shoulder covering the inner brass end. That pushes into the chrome collet’s 8.5mm inner diameter

 

This shows the uncovered end of the brass piece, a bit mis-shapened

Mine came rubber covered, I got lucky. It occurred to me, if the brass is exposed, it could be wrapped (with tape, dental floss, plumber’s teflon tape, ...) to 8.5mm diameter (to both center and isolate it inside the collet) (avoiding metal to metal contact).

Other photos of the OEM part and solutions would be good to gather. I added the one above with my others posted.

 

First, I’m not the least bit angry about this, but why do you seem to be? In fact, I am grateful for your guidance. Especially since only you and I seem to care. What you fail to understand is that the photo on the right showing a bunch of black washers most prominently displays a washer that appears to be 1/4” OD. Whereas the packing shown on the left does clearly state that it contains washers with 1/2” OD. That is why I sought clarification. That was my only point. Anyway I obeyed the package label and bought 1/2” OD.