250 Narrow Case Speedo Drive

[alno]

Has any one changed/serviced the speedo drive gear in the front hub? I just bought a different backing plate and the drive looks in bad rusty shape. I tried to remove it but it will take more force than I think it should. Any help out there.
Thank You
Al N

[double diamond]

Heat the side plate that houses the speedo drive in an oven set to 250 degrees. You might be able to get the brass drive housing to contract a bit by spraying with a can of compressed air computer keyboard cleaner turned upside down. Contact cleaner will have the same effect. Use a 6-point deep socket on the nut. They usually come out with little difficulty but you might have some corrosion frustrating your efforts.
Matt