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  #1  
Old 12-30-2018, 04:22 AM
bill v bill v is offline
 
Join Date: Mar 2011
Location: zeeland michigan
Posts: 127
Default tip up canopy bushing not tight in hole

instruction have you push bushing into hole in canopy frame with your rivet squeezer. I could push mine in with my fingers. asked a machinist how I could get bushing tight. He said you could tighten a hole by putting a ball over the hole and hitting it with a hammer it seems like it would open the hole but it tightens it. I did not have faith so I was very gentile but it did work amazingly well. I put the frame tab on a steel table a friend held the frame so I could place a one inch diameter steel ball bearing over the hole and taped the ball gently because I expected it not to work. but after I had to get the bushing started from the other side of the hole and use my rivet squeezer to push it in
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Last edited by bill v : 12-30-2018 at 06:09 AM.
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  #2  
Old 12-30-2018, 09:53 AM
BillL BillL is offline
 
Join Date: Sep 2007
Location: Central IL
Posts: 5,514
Default New bushings are easy to make.

The hole likely got drilled, not reamed, too big. That said, I just machined new bushings to fit the hole, then they have the fill diameter and length of contact. Just use white brass. 15 min on the lathe and you have new bushings.

My new bushings had offset center holes to effect final adjustments to the canopy fit as well.
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Bill

RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”

Last edited by BillL : 12-30-2018 at 11:04 AM.
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  #3  
Old 12-30-2018, 10:16 AM
sblack sblack is offline
 
Join Date: Dec 2009
Location: Montreal
Posts: 1,456
Default

I've heard there are people who don't have lathes. I don't know how they live. I have 2! Might get a 3rd. people are nicer to you when they know you have one. Even nicer if you have a mill.
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Old school simple VFR RV 4, O-320, wood prop, MGL iEfis Lite
VAF dues 2020
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