Here are some articles that might interest you.  Everything you always wanted to know about restoring woodworkers' essential tool - The Plane

• Secrets of Restoration by Diego de Assis

• Repairing a Broken Cast Iron Plane by James D. Thompson

• Block Plane Selection, Rehab and Tune-up by Bob Smalser

• Restoration of an Old “Pope” #4 Smoother by John Manners

• Installing Thick Iron in a Bedrock 608 by Kevin Foley

• Rehabilitating Old Planes by Bob Smalser

• Recreating Patina on a Plane by Rob Brophy

• Fix That Tote!  by Scott Grandstaff

• The Wedge on Plow and Molding Planes by John Manners

• Screws for Stanley handles by Gary Caron

• Plane Cleaning 101 by Roy Griggs