Quick fix for wearing in composite arf hinges

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Yak Attack · 07-25-2006, 09:57 AM

Hi everyone,

After many flights on a composite 2.6 Yak, it was time to fix the slop in the hinges. After looking around the workshop for a cure this is what I come up with using readily available items ( without too much fuss). Here are some pics, to show how I did it! Hope this will help other composite ARF pilots.

By using replacement super glue tips (can be purchased in packs of 10 that can be re used when finished) drill out hinges to the correct diameter , press fit the tips in the holes as shown and trim to length. The inside diameter is already 4mm inside. The 4mm aliminum tube needs to be put back in reverse so the wear marks on the tube don't line up with the new bushes.

Here are some pics to help.

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exeter_acres · 07-25-2006, 10:01 AM

Great idea.....

now go wash your hands!!!

red_z06 · 07-25-2006, 10:13 AM

try some of the orange hand cleaner with grit

Vic3D · 07-25-2006, 10:24 AM

Whoa! Was there realy that much slops or did u just open the phenolic arm a bit to put the plastic in??

matus777 · 07-25-2006, 10:30 AM

How did you get that bushing out of the phenolic arm withou doing any damage?

exeter_acres · 07-25-2006, 10:34 AM

	Quote: Originally Posted by Vic3D
	Whoa! Was there realy that much slops or did u just open the phenolic arm a bit to put the plastic in??

I believe he said he drilled the arm out to fit the new "bushing"

Vic3D · 07-25-2006, 10:35 AM

	Quote: Originally Posted by exeter_acres
	I believe he said he drilled the arm out to fit the new "bushing"

Oh, right. LOL!!

matus777 · 07-25-2006, 11:53 AM

yep...thanks....should have read that again!

wmat7039 · 07-25-2006, 02:55 PM

Hi there Yak Attack.... That Fix is fine there in Australia.... We have another option in the US by using a McMaster Nylon bearing #7817K13 http://www.mcmaster.com/catalog/112/...l/6126kp1s.gif

This bearing has a load bearing lip on either end, one side is smaller so that it can snap through the hole (it's also split at an angle) which also prevents the bearing from pulling out of the hole. What do you use to prevent the one you have from coming out of the hole?

I've been using those on a CompAfr 3.1 Super Extra which now has 671 flights. They were installed 1½ years ago & have taken away all the slop on the elevator hinges.

Safe Flying...
Wayne
Sew Busy
http://www.sewbusy.com

SmoothFlying · 07-25-2006, 03:29 PM

Sweet fixin. Yes and go wash your hands.

DesertHucker · 08-07-2006, 12:49 PM

	Quote: Originally Posted by wmat7039
	Hi there Yak Attack.... That Fix is fine there in Australia.... We have another option in the US by using a McMaster Nylon bearing #7817K13 http://www.mcmaster.com/catalog/112/...l/6126kp1s.gif This bearing has a load bearing lip on either end, one side is smaller so that it can snap through the hole (it's also split at an angle) which also prevents the bearing from pulling out of the hole. What do you use to prevent the one you have from coming out of the hole? I've been using those on a CompAfr 3.1 Super Extra which now has 671 flights. They were installed 1½ years ago & have taken away all the slop on the elevator hinges. Safe Flying... Wayne Sew Busy http://www.sewbusy.com

They wont sell them to us in Australia I called them. cant find them here

07-25-2006, 09:57 AM	#1
Yak Attack Gettin' Lower! Join Date: Jan 2006 Location: AUSTRALIA Age: 45 Posts: 52	Quick fix for wearing in composite arf hinges Hi everyone, After many flights on a composite 2.6 Yak, it was time to fix the slop in the hinges. After looking around the workshop for a cure this is what I come up with using readily available items ( without too much fuss). Here are some pics, to show how I did it! Hope this will help other composite ARF pilots. By using replacement super glue tips (can be purchased in packs of 10 that can be re used when finished) drill out hinges to the correct diameter , press fit the tips in the holes as shown and trim to length. The inside diameter is already 4mm inside. The 4mm aliminum tube needs to be put back in reverse so the wear marks on the tube don't line up with the new bushes. Here are some pics to help.

07-25-2006, 10:01 AM	#2
exeter_acres Flamingos are everywhere! Join Date: Jan 2006 Location: Johns Creek, GA Age: 44 Posts: 7,158 Awards Showcase Total Awards: 1	Re: Quick fix for wearing in composite arf hinges Great idea..... now go wash your hands!!! __________________ EXTREMEFLIGHT R/C Tech support 2011 IMAC Southeast Regional Director/IMAC Sequence Committee / IMAC Judging Instructor *TEAM FUTABA*

07-25-2006, 10:13 AM	#3
red_z06 Bad-ass Super Contributer! Join Date: Jan 2006 Location: Dumont, NJ USA Age: 49 Posts: 932	Re: Quick fix for wearing in composite arf hinges try some of the orange hand cleaner with grit

07-25-2006, 10:24 AM	#4
Vic3D Mother Huckin' Join Date: Jan 2006 Location: Caguas, Puerto Rico Age: 25 Posts: 4,304 Awards Showcase Total Awards: 3	Re: Quick fix for wearing in composite arf hinges Whoa! Was there realy that much slops or did u just open the phenolic arm a bit to put the plastic in?? __________________ Pilot RC Aztech Aero/Secraft/EG Aircraft B&E Graphics, Jersey Modeler, TailDragger RC

07-25-2006, 10:30 AM	#5
matus777 Bad-ass Super Contributer! Join Date: Jan 2006 Location: chicago,Illinois, usa Posts: 276	Re: Quick fix for wearing in composite arf hinges How did you get that bushing out of the phenolic arm withou doing any damage?

07-25-2006, 11:53 AM	#8
matus777 Bad-ass Super Contributer! Join Date: Jan 2006 Location: chicago,Illinois, usa Posts: 276	Re: Quick fix for wearing in composite arf hinges yep...thanks....should have read that again!

07-25-2006, 02:55 PM	#9
wmat7039 SILVER FOX Join Date: Jan 2006 Location: Acworth GA Posts: 1,182	Re: Quick fix for wearing in composite arf hinges Hi there Yak Attack.... That Fix is fine there in Australia.... We have another option in the US by using a McMaster Nylon bearing #7817K13 http://www.mcmaster.com/catalog/112/...l/6126kp1s.gif This bearing has a load bearing lip on either end, one side is smaller so that it can snap through the hole (it's also split at an angle) which also prevents the bearing from pulling out of the hole. What do you use to prevent the one you have from coming out of the hole? I've been using those on a CompAfr 3.1 Super Extra which now has 671 flights. They were installed 1½ years ago & have taken away all the slop on the elevator hinges. Safe Flying... Wayne Sew Busy http://www.sewbusy.com

07-25-2006, 03:29 PM	#10
SmoothFlying Got Twins??? Join Date: Jan 2006 Location: Columbus, GA Age: 35 Posts: 4,117	Re: Quick fix for wearing in composite arf hinges Sweet fixin. Yes and go wash your hands.

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