Expert: Michael Radi - 11/29/2010

Question
QUESTION: My father received a grandfather clock for retirement about 35 years ago.  It was shipped to me after he passed away and the weights were lost. It is a modern clock, purchased through Ethan Allen.  The face says
Western German.  I have purchased new cylinders but have no idea how much weight to put into them. Can you help?  I can send more pictures if that helps.  The back of the clock is screwed shut and it appears that if I unscrew, the entire movement is attached to that back. I am afraid to take it off.

Thanks,

Wanda

ANSWER: If I knew what numbers are stamped on the back of the clock movement I could tell you the recommended weight for each side.
If you can't provide the numbers I'll give you some guidelines. Most grandmother clocks use 4.5 pounds for the center and the right side (time and strike). The left side as you face the clock is the chime side and it needs the most weight: 6.6 pounds. Usually the weight shells are about 1-9/16" in diameter and about 9" to 10" long. A solid steel insert should weigh about 4.5 pounds. To get 6.6 pounds inside one of these shells it pretty much has to be solid lead.
The idea is to use as much weight as it takes to get the clock to run properly but no more. Too much weight will cause the clock to wear out prematurely.
Weight inserts can be purchased for these clocks.
Michael
www.norkro.com
clock parts and repair

---------- FOLLOW-UP ----------

QUESTION: Hi,
Thanks for the quick response.  If I can get my son to help me unscrew the back of the clock and get the numbers, are you for hire to make up the weghts for me?

Thanks,

Wanda

Answer
The chime block might be attached to the back of the clock via 4 screws. You don't want to remove those screws or the block will fall down inside the case. The movement is usually attached to a seat board, not the back of the case.
Let me know if you need help getting inside.
Yes I will help you find weights if you tell me what is stamped on the back of the movement.
Michael