I replaced a Jauch pl 42 movement with a Jauch pl 34 and now it runs slow even after adjusting the pendulum all the way up as far as it will go. The movements appear identical except for the 34 had bimbam strikers that I removed. Even the suspension springs are the same. I'd appreciate any suggestions. Thanks

Hi Larry,

How slow is it, and how long is the pendulum from the center of the bob to the suspension post?

Best,
Tom