Jim Roadt Posted September 5, 2024 Posted September 5, 2024 An esteemed member put me on this today...biggest fan I have 20" and it can move some air. Going to take a lot of mother's to shine this monster up. 20240905_171319.mp4 6 Quote
Russ Huber Posted September 5, 2024 Posted September 5, 2024 (edited) I think if you measure one wing from center rotor shaft to wing tip, you'll get 11" for 22" diameter blade. And 1140 RPM makes for a centrifugal start 1/4 HP 6 pole motor. 🙂 That original center guard banner still factory legible is a treat all by itself. Despite the aesthetic purpose rear motor cover missing, it still presents itself well. You could actually move the pull switch down to the base column and put a flat plate for cord entry at the bottom of the motor. Or, with a donor rear cover, you could have a reproduction rear motor cover done at Cattail foundry cheap. Those are well constructed beauties! Edited September 5, 2024 by Russ Huber 2 Quote
Stan Adams Posted September 5, 2024 Posted September 5, 2024 Once you get real good at it, I’ll send mine your way Jim. 😀 Quote
Russ Huber Posted September 5, 2024 Posted September 5, 2024 I love that style motor mounting. 🙂 1 Quote
Russ Huber Posted September 5, 2024 Posted September 5, 2024 James Funk the Chicago blade designer. He was a mathematical genius. 1 Quote
Michael Rathberger Posted September 5, 2024 Posted September 5, 2024 Best one I ever saw was Chris Smiths at an Indy fan fair several years ago. I had some wheeling and dealing to do and had collected the last 100 I needed. Walking over to get it, Chris was just completing a deal with a Chicago collector for it. I missed by 2 minutes... Quote
Jim Roadt Posted September 6, 2024 Author Posted September 6, 2024 1 hour ago, Stan Adams said: Once you get real good at it, I’ll send mine your way Jim. 😀 I haven't been able to get the blade off yet... so it might be a while 1 Quote
Russ Huber Posted September 6, 2024 Posted September 6, 2024 45 minutes ago, Jim Roadt said: I haven't been able to get the blade off yet... so it might be a while Check for more than one set screw. You might be able to borrow and finagle a 3 hook pulley puller to slip that 3 wing blade off. 🙂 Quote
Michael Rathberger Posted September 6, 2024 Posted September 6, 2024 Check for a double set screw, I had a ward that had one under the top one. Quote
Jim Roadt Posted September 6, 2024 Author Posted September 6, 2024 3 hours ago, Michael Rathberger said: Check for a double set screw, I had a ward that had one under the top one. Will do Quote
Jim Roadt Posted September 7, 2024 Author Posted September 7, 2024 On 9/5/2024 at 9:14 PM, Russ Huber said: Check for more than one set screw. You might be able to borrow and finagle a 3 hook pulley puller to slip that 3 wing blade off. 🙂 In theory would work, however, no way to attach it evenly . Fortunately Auto zone lends tools out and I figured that out without spending any money Quote
Russ Huber Posted September 7, 2024 Posted September 7, 2024 2 hours ago, Jim Roadt said: In theory would work, however, no way to attach it evenly . Fortunately Auto zone lends tools out and I figured that out without spending any money Take the fan out to an open field and tape this between the motor and the blade and light the fuse and run. Just make sure your set screw(s) are loose. Quote
Jim Roadt Posted September 7, 2024 Author Posted September 7, 2024 Laryngoscope ,aka lizard cam, shows no second set screw...nor any polyps Quote
Geoff Dunaway Posted September 8, 2024 Posted September 8, 2024 On 9/5/2024 at 6:42 PM, Russ Huber said: James Funk the Chicago blade designer. He was a mathematical genius. Are you sure ?? That dude could double as an identical twin to Perry Mason's legal sidekick, Paul Drake Quote
Russ Huber Posted September 8, 2024 Posted September 8, 2024 2 hours ago, Geoff Dunaway said: Are you sure ?? That dude could double as an identical twin to Perry Mason's legal sidekick, Paul Drake Quote
Russ Huber Posted September 10, 2024 Posted September 10, 2024 If there is enough clearance between the blade and motor housing to slip in vice grip jaws, you can freeze the rotor shaft movement and spin the blade free off the shaft. You will need to wrap some thick cloth/tape around the shaft before you lock the jaws down on the shaft, so you don't chew up the shaft. Obviously, you had no faith in my dynamite suggestion. Quote
Jim Roadt Posted September 18, 2024 Author Posted September 18, 2024 One eternity later blade is off interesting mounting bracket and padding to absorb vibration along with "the slit" in base Quote
Jim Roadt Posted September 18, 2024 Author Posted September 18, 2024 Not sure why those two nuts were wired together but that bracket with the antivibration padding is not coming off anytime soon either Quote
Michael Rathberger Posted September 18, 2024 Posted September 18, 2024 The wire is an old school locking mech ensuring the nuts won't come loose. Some of the old Harley guys would put them on the primary chain cover. Quote
Nicholas Denney Posted September 18, 2024 Posted September 18, 2024 Those are called castle nuts. Quote
Russ Huber Posted September 18, 2024 Posted September 18, 2024 Wow, Jim! Now that your nuts are in order, time for an adrenalin rush and pop the bell on that motor! Wanna see those Marathon motor guts, oh ya. 🙂 Quote
Russ Huber Posted September 18, 2024 Posted September 18, 2024 (edited) My blade was stuck as well. Big flathead screwdrivers have a big wedge, and lots of leverage. Increased leverage and increased wedge persuade things to move... fast. 🙂 Another possibility to persuade a stubborn circulator blade off the shaft is a Pitman arm wedge. Edited September 18, 2024 by Russ Huber 1 Quote
Jim Roadt Posted September 18, 2024 Author Posted September 18, 2024 or pry it up a 1/4" and pound it back down...spray....repeat and slides off like butter....never panic That motor is never coming apart Quote
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