Jump to content

Help with JLC 424 balance please

Aedui
 Share

Recommended Posts

HSL Distinguished Member

HSL

Posted
Posted (edited)
8 hours ago, VWatchie said:

I have done quite a few Vostoks (24XX) and all of them had at least one shim under the balance cock and sometimes two. These shims are smooth and quite soft and my guess is that they compensate for irregularities on the surfaces of the main plate and the underside of the cock which could otherwise cause the situation depicted in @HSL's excellent illustration.

Well, JM2C...

I have a very limited experiance from these ones, I havent had any with shims yet, but good to know they are common with these calibers. Maybe it is a result from rough machining who knows.
About the illustrations I decided not to post to much material I haven't produced myself, one never knows in these days.
Here is one I forgott to post earlier.. Just for fun.
 

Effect of shims 2.png

Edited by HSL
  • Thanks 1
Link to comment
Share on other sites
VWatchie Distinguished Member

VWatchie

Posted
Posted
1 hour ago, HSL said:

Maybe it is a result from rough machining who knows.

I've previously been in touch with Dmitry at meranom.com who's very tight with the people at the Vostok factory. I just posted a question to him to ask if he can explain the reason for this "shim design". If and when he replies I'll forward it to this thread. BTW, I think he is a member on WRT, perhaps @Dmitry?

Link to comment
Share on other sites
Nucejoe Distinguished Member

Nucejoe

Posted
Posted

Mark put out a video on youtube in watch repair regulating lesson titled; 

        "   SETTTING A WATCH IN BEAT  " 

which  you can google and watch the vid.

He encounters  a case of jouging, mentions that jouging is a frowned upon practice, but continues and  ends up with perfect amplitude dispite the jouge.

Cock tilted down does not create a problem if just a little lowered.

 

 

 

 

Link to comment
Share on other sites
 Share
Go to topic listing


  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • RichardHarris123
      Saying hello

      By RichardHarris123 · Posted

      Hello and welcome from Leeds, England. 
    • swiss2k
      Omega cal. 565 - low amplitude

      By swiss2k · Posted

      Thank you!   Yes I did. I did not notice a difference. Although 9415 is advertised as a thixotropic grease (and I did had high hopes for it), the only advantage at this point I see is that its “easier” to apply than an oil (if one does not use epilame). But this is subjective, I guess. What I did notice though, if you apply a bit too much grease, that definitely slows down the movement. Oil in this case is a bit more forgiving, as its super thin, and it would usually just spread out.  Again, imho.
    • oldhippy
      Without Our Forum

      By oldhippy · Posted

      Mark keeps a close eye on his forum. I'm sure if you asked him he will reply, he might not do it right away but you will receive his answer.  
    • Neverenoughwatches
      Epilame / Fixodrop

      By Neverenoughwatches · Posted

      I kind of think the same, the surface under the oil is the same as the surface around the oil. Can epilame both repel and attract , that doesn't quite make sense in simple terms, but is it more complicated than that. When cohesive forces within a liquid are stronger than the adhesive forces of a surface then surface tension is high causing the liquid to bead up. So  an applied epilame coating reduces the adhesive force of a surface inhibiting a fluid to wet the surface. So i guess no epilame cannot both repel and attract . If something is keeping the oil in place on top of an epilamed surface then there must be another reason for that.
    • Klassiker
      Epilame / Fixodrop

      By Klassiker · Posted

      I agree with @JohnR725. Oil on an epilamed surface is essentially the same as water on a waxed surface. The same physical properties are at work (surface tension vs. adhesion). 
×
×
  • Create New...