Goal: $300, Received: $360.00 (120%) Contribute Now
Donate whatever you can or Join the 14,000 other NAWCC members for only $80 (plus $10 for hard copy publications). Check it out here.



Page 1 of 2 12 LastLast
Results 1 to 15 of 21
  1. #1
    Registered user.
    Join Date
    Jan 2016
    Location
    Pennsylvania
    Posts
    668

    Default ST 8 day OG strikes too fast

    I just bought a Seth thomas 8 day ogee clock and after getting everything cleaned and oiled the clock runs perfectly but the strike is extremely fast and picks up speed as it runs. I checked the fly and it's not loose at all and I can move it with my finger having resistance on it as you should. What I did notice though is the weight for it might not be the correct heaviness. The weight is cylinder and I always thought they should be tapered as the move upwards. The weight is cylinder and tapered at the bottom but it looks like it was wrapped with something hard so it's no longer tapered. Not sure if that was done originally or afterwards. I can't take a picture of it right now but was wondering how many pounds it should be and also what exactly it should look like.

  2. #2

    Default Re: ST 8 day OG strikes too fast (By: Jasons34)

    Quote Originally Posted by Jasons34 View Post
    I just bought a Seth thomas 8 day ogee clock and after getting everything cleaned and oiled the clock runs perfectly but the strike is extremely fast and picks up speed as it runs. I checked the fly and it's not loose at all and I can move it with my finger having resistance on it as you should. What I did notice though is the weight for it might not be the correct heaviness. The weight is cylinder and I always thought they should be tapered as the move upwards. The weight is cylinder and tapered at the bottom but it looks like it was wrapped with something hard so it's no longer tapered. Not sure if that was done originally or afterwards. I can't take a picture of it right now but was wondering how many pounds it should be and also what exactly it should look like.
    A lot of 8-dayOGs had rectangular weights around 7 to 8 lbs. Too heavy would explain the strike being fast but does not explain why it speeds up as it runs. I still suspect the fan is slipping too much.

    RC

  3. #3

    Default Re: ST 8 day OG strikes too fast (By: Jasons34)

    You can increase the hammer lift and the spring tension a bit. But increasing the load doesn't make much sense on a weight driven clock. Better all around to simply decrease the weight.
    Have both weights been modified and have you weighed them?
    Note, most of these clocks do normally strike rather quickly and have a brief run up to the governed speed. How many seconds does it take your clock to strike 12:00?
    Willie X
    Last edited by Willie X; 04-16-2017 at 09:54 AM.

  4. #4
    Registered user.
    Join Date
    Jan 2016
    Location
    Pennsylvania
    Posts
    668

    Default Re: ST 8 day OG strikes too fast (By: Willie X)

    So your saying both weights are to be the box kind? The time one is but the strike one is like a single day but is much beefier. Both weights are the same diameter at the bottom and both taper like they should. But the strike one has like a solid sleeve of some sort that was wrapped around it (most likely to add weight) so now the overall thing is not tapered at all except for the bottom inch. I'll get a picture of the weight once it gets down low enough that I can remove it from the case. As for the time it takes for it to strike 12 times is 5-6 seconds

  5. #5

    Default Re: ST 8 day OG strikes too fast (By: Jasons34)

    Jason,
    Doesn't matter to much what the weights look like, how much do they weigh? Also, how would you know for sure which weight went on the strike side? It would be more likely that someone modified/increased the time weight, in an attempt to make it run.
    The weight's top has to be tapered or channelled or the weight will rub the cord at the top and cause premature failure of the cord.
    Willie X
    Last edited by Willie X; 04-16-2017 at 11:37 AM.

  6. #6
    Registered user.
    Join Date
    Jan 2016
    Location
    Pennsylvania
    Posts
    668

    Default Re: ST 8 day OG strikes too fast (By: Willie X)

    Well maybe I have them backwards but when I bought the clock the boxy weight had written on it "right" so I kept that one on the time side. Also that weight is heavier. How many pounds should each weight be? Also I double checked the fly and it's not too loose. I have plenty enough resistance when I rotate it with my finger

  7. #7

    Default Re: ST 8 day OG strikes too fast (By: Jasons34)

    The 'boxy' rectangular weights usually have relief cast into the inner side to prevent interference with the cords. As stated earlier, typically around 8 lbs. There won't be a lot of difference between the two. OGs typically specify the lighter weight on the strike side but 'lighter' probably means 1/2 lb. or so.

    It is important that the hammer not be partly raised when the striking begins. That can be a bit tricky to adjust on these. If that is the case with this clock then someone may have added additional weight to help it start. That would also account for the slow startup after which the extra weight will drive the strike too fast. We really need to know the weight or the weights you are using.

    RC

    This is a picture of the weight on the time side of my 8-day OG - about 8 lbs.
    Merritt's part #CW-2 "for American 8-day shelf clocks, OG's....... 6.75 lbs.
    Its not usually that critical if the clock is adjusted properly and in good condition.
    Attached Thumbnails Attached Thumbnails og-weight.jpg  
    Last edited by R. Croswell; 04-16-2017 at 03:23 PM.

  8. #8

    Default Re: ST 8 day OG strikes too fast (By: Jasons34)

    Jason,
    Another question, has the fly been modified? Not unusual to find one that has been replaced, or cut, or bent up. The fly should take up all, or nearly all, of the available space. In other words, the outer edges of the fly should pass the nearest arbor or post by maybe 1/16".
    Striking should be at or near 9 seconds for 12:00. Maybe RC could count the strike speed on the one he has. I don't have one like yours at present but I am working on a similar spring driven S-T. This one is a fast striker too. It strikes about like yours does @ ~6 seconds for 12:00. The cuatomer said that he was used to winding it twice a week and only winds it about half way to keep the strike slower.
    Willie X

  9. #9
    Registered user.
    Join Date
    Jan 2016
    Location
    Pennsylvania
    Posts
    668

    Default Re: ST 8 day OG strikes too fast (By: Willie X)

    Willie. I also have an Ansonia mini ogee spring driven that is as fast as this but I heard they are fast strikers. My other 2 ogee are 30 he and much slower. As for the fly being modified that is a no. Even the wire that runs across to give the fly its resistance is not bent or shows signs of being messed with. The only thing that worries me is the weight. I'll take a picture of that tomorrow. Shouldn't the time and strike weights look the same but the strike be a tick lighter?

  10. #10

    Default Re: ST 8 day OG strikes too fast (By: Jasons34)

    They should look the same. As RC said, a small difference in weight won't make much difference. But, if they are different, might as well use the weight where needed, or where not needed in your case.
    Most shops have weights laying everywhere, just put on a 5 pounder and see what happens ...
    Willie X

  11. #11

    Default Re: ST 8 day OG strikes too fast (By: Willie X)

    Quote Originally Posted by Willie X View Post
    Maybe RC could count the strike speed on the one he has.......
    Willie X
    Mine takes 13.2 seconds to strike 12 times.

    RC

    (Mine is a Jerome, not ST but basically the same design)

  12. #12
    Registered user.
    Join Date
    Jan 2016
    Location
    Pennsylvania
    Posts
    668

    Default Re: ST 8 day OG strikes too fast (By: R. Croswell)

    So I finally got the weight down far enough that I could remove it. Here are 2 pictures of it on the scale.
    Attached Thumbnails Attached Thumbnails IMG_0461.jpg   IMG_0462.jpg  

  13. #13

    Default Re: ST 8 day OG strikes too fast (By: Jasons34)

    The weight is on the high side but not that unreasonable. What is the weight on the time side? You might try swapping the weights and see how it strikes.

    RC

  14. #14

    Default Re: ST 8 day OG strikes too fast

    My recollection is that the OG's do tend to strike fast by design.
    A man with a clock always knows the time. A man with two clocks is never sure.

  15. #15
    Registered user.
    Join Date
    Jan 2016
    Location
    Pennsylvania
    Posts
    668

    Default Re: ST 8 day OG strikes too fast (By: shutterbug)

    RC I'll weigh the time one tonight and even swap them. But if you look at my first picture of the closer up shot you'll notice the weight is tapered going up about a third of the way and then it looks like someone went and wrapped it to add weight and then there is a cap on the top that meets up with that added part. I'm not sure if that was an after thought maybe to help the train along or if the weight belongs the way it is which I highly doubt. When looking at Merritts and timesavers they have weights in the 8lbs range and then at 6 3/4lbs range. So that has me confused at to which one goes where. Not only that but if I could shave away some of the weight is that even possible?

Similar Threads

  1. ST Lyre strikes too fast
    By craig in forum Clock Repair
    Replies: 7
    Last Post: 09-08-2005, 10:46 AM
  2. Strikes too fast
    By Carl Gerdes in forum Clock Repair
    Replies: 3
    Last Post: 08-18-2004, 04:18 AM
  3. Striking too Fast. Suggestions
    By sep in forum Clock Repair
    Replies: 16
    Last Post: 08-08-2004, 05:27 PM
  4. Seth Thomas strikes too fast.
    By pongo74 in forum Clock Repair
    Replies: 9
    Last Post: 07-22-2004, 08:04 AM
  5. ST Strikes Too Fast
    By TomT in forum Clock Repair
    Replies: 6
    Last Post: 03-21-2003, 02:16 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •