I had a prop hub on my 1835 Gilbert Duty VW engine. I had to heat it up in the kitchen oven and take a torch to the crank to get it warm, just warm. I took it out of the oven and ran downstairs as fast as I could and beat it on with a soft ended hammer.
See N64KR at http://KR-Builder.org - Then click on the pics "There is a time for building and a time for flying, and the time for building has long since expired." Daniel R. Heath - Columbia, SC See you in Mt. Vernon - 2004 - KR Gathering See our EAA Chapter 242 at http://EAA242.org www.krnet.org/info.html