Why we offer only the entire chime block
Often the rods are pressed into the block by machines and is difficult or next to impossible to get a single rod out or replace it.
Other times they are screwed in but again this is done by a machine and is very difficult to remove. Also there are various threads on the rods that are the replacements, it is a tricky thing to get the correct thread size for the individual chime rod and have it fit perfect. Very often the chime rod ordered is returned and swapped out a few times and then just giving up on the individual chime rod and going with the complete chimeblock with the rods anyway.
So with all this we do not sell the individual rods that go into the block, but rather the entire block and rods together as one unit.
How to order the chime block
The first step is to determine what style chime block is needed. This is where the hammers are located on the clock movement itself.
There are either side, bottom and back strike style clock movements. Chime block style A is for the bottom strike units, and also can be used on the side strike units as well.
The style B is for the side strike units or in some situations the back strike diagonal style Westminster units.
The style C is for floor clock models (and in rare occasions wall clock styles) with two rows of hammers on the back of the clock movement.
With the style clock chime block decided the next step is to count how many rods are needed, and the length off the longest rod measuring through the chime block. Find this information on the corresponding drop down list for the style chime block needed.
How to adjust the chime hammers on the clock
The movements hammers are meant to be bent into final position. What this means is it does not have to be dead on, just pretty close to where the movements hammers will be. It should be positioned so the tops of the hammer heads are about 1/4 inch or 1/2 inch down from the chime block itself, and the heads should rest about 1/8 inch away from the rod it will strike. You bend the hammer wires as to make the head about 1/8 away from the chime rod. This spacing between the head and the rod is so it will not thud or double hit. If you just do each hammer so it sounds good down the line, you will have a nice song at the end.