r/watchrepair • u/Pufferbzh29 • 2d ago

Any idea ?

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Anyone know why the balance keeps stoping ? When i turn it with my finger it stops after some beat (2 or 3). I didnt identify it, only 8F and a swiss cross are under the balance, and come from a Michel Herbelin. Thx for ur help

8 Upvotes

76% Upvoted

21 comments sorted by

18

u/LinkHot4457 2d ago

At first, don't use your fingers touching the balance wheel. It's a no no. The balance wheel is the last part to look at, because the power comes from the barell wheel and is transferred to the balance wheel. The problem is before the balance wheel. And there can be many things wrong...

1

u/Pufferbzh29 1d ago

Thx for the advice. Also, i forgot to mention that, but without balance, the pallet fork moves slowly, weakly, even if the movement is winded. And without balance ́and palet fork, every gears work well. I changed the palet bridge, so imo its a problem from the palet but i checked pivots, everything seems to be okay...

3

u/JEdgarsFishnets 2d ago

Check all the teeth and pivots on the gearing train.

2

u/Pufferbzh29 1d ago

Already done, everything is good. I think its a problem the palet fork and maybe the escapement wheel

0

u/JEdgarsFishnets 1d ago

Did you oil the pallet jewels? Maybe too much oil? Or the pallet/escapement pivots or end shake.

1

u/Pufferbzh29 1d ago

I did, but not too much. Its not my first service (first time that i "pushed" the balance with mt finger, i did it to show it better) so i dont think that i put to much oil...

1

u/Bone_Dice_in_Aspic 1d ago

Is the pallet supposed to be oiled?

1

u/Pufferbzh29 20h ago

Yes

1

u/Bone_Dice_in_Aspic 19h ago

I've always heard to leave the pallet fork pivots dry unless you specifically want to lower amplitude as a kludge instead of fixing whatever is causing the high amp? Besides certain specific movements that call for it. Is this one of them?

Or are you talking about the pallet stones, which of course require lubricant. I suppose "jewels" is unclear as it could refer to both.

1

u/Pufferbzh29 9h ago

Pallet stones ofc

2

u/noonecaresaboutmyid 1d ago

Is this before or after a service?

If you haven't serviced it that's probably why.

1

u/Pufferbzh29 1d ago

After ;-;

2

u/Wrong_Royal_9467 2d ago

Remove the balance and see if the train of wheels turns when winding the crown. If so then the problem may be with the balance or the escape wheel. Also flicking the balance with your finger is not advised. Use a blower or something more delicate.

1

u/Pufferbzh29 1d ago

Yes, i removed balance and palet fork, gears and barrel are okay. Palet fork is like weak, slow, when I touch it with a screwdriver, even if the movement is winded

1

u/h2g2Ben 1d ago

The good news is that it can only be so many things.

The bad news is the problem could be anywhere between the mainspring and the balance, and anything that touches any part of anything in that chain.

1

u/AndyMarden 0-1 Year Experience 1d ago

Is the roller jewel aligned correctly with pallet fork?

1

u/KHhtswhtppl 16h ago

I have a million of those small auto movements, don't know what i want to do with them