Not sure of how to correctly mount the top suspension block onto the saddle. Is something missing here?
Do I need to make spacers to hold top block in place?
According to the serial # this clock is 1907/08
The top block should have a pin that sits in the groove at the top of the bracket so the suspension can pivot front to back. The block itself was originally wider to fill the entire space so you would want to take up the extra space you have. The screw on the side keeps it in place once you have the clock set up.
It’s relatively easy to make a top block, superglue 2 bits of brass together, mill or file to size , drill the 2 holes for screws and countersink one side then tap holes , drill hole for snug fit for pin , heat to release both bits , then the part with the countersinks in broach or drill slightly larger , make or purchase some small screws, the picture is of a top block I made for a torsion clock , although these are different the principle is the same except this one has a round part on it turned in the lathe while the 2 bits of brass were still glued together.