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  #1  
Old 07-07-2018, 07:00 PM
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Default Too tight main axel/bering fit .. hints?

Hi Folks,

I'm attempting to put the wheels on the gear, but find that both main axels are bit oversized and the bearings will not slide on (even with some light encouragement)

Anyone else see this? A leftover from heat treatment of the legs?

Anyone have any magic tricks, or is it grind to fit? No way the bearing's gonna stretch.
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  #2  
Old 07-07-2018, 07:17 PM
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Default Axle fix

Get a roll of plumbers sandpaper ( actually a long roll of emery cloth) used to clean copper fittings. Big box stores sell it in about a 2” x 2” box. It is fabric backed and will help you dress the axle so the goodies will slide on the axle. It is about 2” wide by ten feet
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Last edited by Vern : 07-07-2018 at 08:03 PM.
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Old 07-07-2018, 07:17 PM
Kyle Boatright Kyle Boatright is offline
 
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Get some emery cloth or a strip of 600 grit sandpaper. Wrap the paper halfway around the axle and saw it back and forth to slowly sand down the OD. Reposition the paper frequently to keep the axle round..
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Old 07-07-2018, 07:25 PM
Larco Larco is online now
 
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Absolutely and I will add that if you remove the bearing from a wheel and sand the axle until the bearing slides on and off, easier than using the wheel?
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Last edited by Larco : 07-07-2018 at 10:25 PM.
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  #5  
Old 07-08-2018, 09:12 AM
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Thanks for the tips! Looks like I'll open a cold can of elbow grease at get to it....
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N430WB (reserved) RV-7 #74152, tip-up. Working the baffles
Log at: http://rv7.wbencze.com
Defeating gravity one rivet at a time
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  #6  
Old 07-08-2018, 09:47 AM
n4322b n4322b is offline
 
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Quote:
Originally Posted by Vern View Post
Get a roll of plumbers sandpaper ( actually a long roll of emery cloth) used to clean copper fittings. Big box stores sell it in about a 2 x 2 box. It is fabric backed and will help you dress the axle so the goodies will slide on the axle. It is about 2 wide by ten feet
I'm told the same process is required on the landing gear legs as the enter the sockets and I had to do same on the tailwheel spring too
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  #7  
Old 07-08-2018, 02:41 PM
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Default Enlarging gear sockets interior

Use the same technique. Some brake cylinder hones with some oil on them allow you to slightly enlarge the gear sockets. You can also use stones in a power drill, or some of the emery paper in a slot cut in the end of a dowel
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Vern Darley
Awarded FAA "The Wright Brothers 'Master Pilot' Award"- for 50 years safe flying

RV-6A N680V / RV-10QB N353RV
Luscombe 8E N2423K 49 years
Hatz Biplane N2423Z soon to be birthed
Falcon RV Squadron Founder
KFFC Hanger D-30
Peachtree City, Ga
770 310-7169
EAA Technical Counselor #5142
EAA Flight Advisor #486336
ATP/CFI/A&P/DAR
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  #8  
Old 07-08-2018, 11:31 PM
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Post op report: The plumber's pipe dressing tape/sandpaper did the trick ... it took about 15 mins a side to remove enough material for the bearings to slide on.

Now, the baby has new shoes! Thanks for the help.

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N430WB (reserved) RV-7 #74152, tip-up. Working the baffles
Log at: http://rv7.wbencze.com
Defeating gravity one rivet at a time
VAF 2018 donation happily made
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