Posted by Old-F20 on May 03, 2009 at 12:20:49 from (71.7.98.117):
In Reply to: F-20 Flywheel posted by f20inmi on May 03, 2009 at 05:49:30:
f20inmi said: (quoted from post at 05:49:30 05/03/09) There is another way which could save you from having to fabricate tooling. The bearings folks will tell you that impact loading and bearings don't mix real well. Basically, little indents (brinnelling for those who might be looking to add the technical term to their vocab) left in the race ways will utlimately result in problems later on.
I talked to a fella who pulls and replaces flywheels on F series frequently. He said that he has had good success by taking advantage of thermal expansion. You can set your flywheel on the bbq grill for about half an hour until it's ~300 F. An infrared thermometer works well to gage the temp. Screw a couple bolts in threaded holes to help you handle the flywheel and pin. It doesn't hurt to put the dowel pin in the freezer for a couple hours. Of course, welders gloves are a "must have" to handle the hot flywheel.
You can slide the flywheel on the room temp crank shaft while another slides the pin home. After it was in position you can run the nut down while the flywheel is still hot to get in home position. Took a couple helpers to make it happen; but made a pretty tough job which could have taken minutes happen in less than 30 seconds.
Of course I have the utmost respect for Old-F20 and Cowmans' advice and am sure that they have had good success with their procedures.
I would be interested in seeing your puller. Was it fabricated or a commercial model? Would you be able to post a picture?
Good luck.
what does 300 degrees do to a felt oil seal????????
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Today's Featured Article - The Rescue of a Fordson F - by Anthony West. Introduction I live in the UK and have for many years restored Fordson tractors (in the main model N's). I have also restored and shown model F's, E 27N's, Field Marshall Series 2, David Brown Cropmasters and the old rey Fergeson T 20. At one time I had seven restored examples which were shown and used in ploughing matches. As most restorers, I have a number of war stories I can relate on a range of topics that may help other like minded and interested people. Perhaps my first p
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