I looked at the link you included but its not the same motor as the motor i show in the photo I included. Look at post #13, I have grease ports not grease caps.
Are grease ports supposed to have felt in them? They are so narrow I can't see they would even work.
I'm tempted to take them out. Its the first time I've ever seen felt in there before. They seem fine other than appearing to have never touched grease before, they're still fluffy like felt, nothing like they should look for a 64 yr old machine.