Expert: William J Perkins - 12/5/2009

Question
Hello,
I have 2 antique clocks that I can't get started. The first is a Westminister Grandfather clock. I read where the weights all weigh different and that the heaviest weight has to be hung on the far right, and the same sequence for the lighter weights, hung from right to left according to their weight. The problem is, is that I can't figure out which weight is heaviest, and the same for the other 2 weights. There is a total of three weights. I put each of them on a digital scale but they all read the same weight? So much for digital accuracy. The other clock is an antique wall clock, can't get it started either, it has no weights besides the pendulem.Can you help me get these 2 beautiful clocks started... Please.

Answer
The difference between weights is so great that you need no scale to determine.  Typically a modern grand father will use the following weight distribution;  Time/center train 7.7 lbs, Striking/left train 7.7 lbs, Chiming/right train 9.9 lbs.  Since the chime weight is 24% heavier than the other two, you would make your determination simply by hefting them.  Since the differential between the weights is so little that you have to use a scale, you must not have the correct weights.  Since this seems to be the case I suggest you gain access to the back of your clocks movement, copy down and send me every bit of information you find printed or etched upon the movements brass backplate.  Perhaps, with that information at hand I can tell you the correct weight requirement.  Also you would need to tell me how the weights are hung, chain or cable?

As to the two weight clock I will need the information on the backplate, plus how the weights are hung.  Often times two weight clocks use the same amount of weight to drive either train.

In each instance, the name of the maker could be of help.  Regards WJP