Seth Thomas no 2 regulator - need help in replacement of suspension spring

Ehockey

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Mar 14, 2022
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Was working to replace suspension spring when removing the pin it broke off leaving some in the cast iron mount. Need help on how to get the rest of old pin out and it appears the new pin is slightly bigger in diameter need advice on getting it back in. Is there a tool you would suggest for both? Any help will be greatly appreciated. See pics

20230530_104615.jpg 20230530_104608.jpg 20230605_114414.jpg 20230605_115158.jpg 20230605_115151.jpg
 

bruce linde

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the pin is fatter on one side... look really closely to determine which is the smaller end and then try using a small finish nail or any other pointed thingey to try and push the pin out. i have in the past popped out the entire suspension spring holder from the iron bracket and then reattached (press fit + loctite)... but shouldn't be necessary. just know you will defeat the pin.... :)
 

Willie X

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Looks like the brass post has been rotated. Did you do that to get at the pin??

A tapered pin is OK for this but a snug fitting piece of iron wire, bent upward on both ends, is better.

Willie X
 

bruce linde

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good catch, willie... yes, that suspension block needs to be rotated back into position... but if it's already loose you might be able to rotate it for temporary access to get that pin out...
 

Ehockey

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the pin is fatter on one side... look really closely to determine which is the smaller end and then try using a small finish nail or any other pointed thingey to try and push the pin out. i have in the past popped out the entire suspension spring holder from the iron bracket and then reattached (press fit + loctite)... but shouldn't be necessary. just know you will defeat the pin.... :)
Thanks for your quick response Bruce... I did notice before trying to get it out it was tapered on one end (left) so I tried pushing that end through and got it all the way in then tried pulling the other side (right) out and that's when it broke off. With limited access my struggle will be getting enough force on it to push it through. Once I do that don't know if you can tell but the new spring pins appear to be slightly bigger in diameter so.... but first things first. I need to get me a vice to hold the cast iron mount then I could use the end all tool to push it through the HAMMER. Thanks for your help will let you know how it goes. BTW, still greatful for your previous help when we first hung this clock and you helped us get it going.
 

Ehockey

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Looks like the brass post has been rotated. Did you do that to get at the pin??

A tapered pin is OK for this but a snug fitting piece of iron wire, bent upward on both ends, is better.

Willie X
Thanks Willie, yes I did rotate it to try and get better access.
 

bruce linde

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i don't think you really need a vise... you can hold the bracket and whatever you're using to poke at the pin (a beefy sewing needle, maybe?) in one hand, and tap with a small hammer (or something that has a little mass to it)... just give the pin the evil eye and let it know you're the boss. :)
 

John P

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That post should be pressed out and replaced. We have delt with that issue on the #2's more than once. Often one side will be twisted or broken off.
If one fiddles around with that post too much, they wind up with a wobble or one side of the pendulum scrubbing the back of the clock case. House walls are not plum and ST# 2 are not forgiving in that area.

The fix is simple...cut the suspension post off an old Hermle GF clock movement and fit it to your hanger. Then get the proper suspension spring from Timesavers. Use wire instead of taper pin. Done.

johnp
 

Ehockey

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That post should be pressed out and replaced. We have delt with that issue on the #2's more than once. Often one side will be twisted or broken off.
If one fiddles around with that post too much, they wind up with a wobble or one side of the pendulum scrubbing the back of the clock case. House walls are not plum and ST# 2 are not forgiving in that area.

The fix is simple...cut the suspension post off an old Hermle GF clock movement and fit it to your hanger. Then get the proper suspension spring from Timesavers. Use wire instead of taper pin. Done.

johnp
Thanks John, I'm not a clock person my dad was and he gave us this clock years ago. I haven't got a clue when you talk about old Hermle clock post. I have already got the replacement spring from Timesavers.
 

Ehockey

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Mar 14, 2022
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i don't think you really need a vise... you can hold the bracket and whatever you're using to poke at the pin (a beefy sewing needle, maybe?) in one hand, and tap with a small hammer (or something that has a little mass to it)... just give the pin the evil eye and let it know you're the boss. :)
 

Ehockey

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Mar 14, 2022
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Well, had a victory this morning. Found just the tool in with my screw drivers and my wife helped me out by holding the bracket while I wheled the hammer. Got the new spring in and used a cut off little nail instead of the pin. Now to put it back together and see if it works, but since I have it apart I may see if I can get the movement serviced.
Thank you guys for your suggestions they got me through.

20230608_133354.jpg
 

bruce linde

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congrats… Make sure the suspension spring slot is perfectly perpendicular to the floor
 
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