Avon Flyers Forum Home - Serious Retract Question.

Fingers YaBB Moderator I still got all five! Offline Forum User LastOn: Today Join: Mar 22^nd, 2010 Posts: 3,157 Reputation: 0 Dartmouth Gender: Zodiac sign: Awards: 3 Mood:	Serious Retract Question. Apr 20^th, 2018 at 3:48pm While getting the ESM Hurricane ready, I noticed the retracts seem to have a lot of slop. don't remember that from when I flew it last. The struts, when down, have about 1/2" (1 cm) back-and-forth to them at the wheel. Is that about right? Do expensive gear like Robart have that slop? If too much, can the slop be taken out and how??
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al Aerobatic Pilot Offline Forum User LastOn: Oct 22^nd, 2024 Join: Apr 26^th, 2012 Posts: 317 Reputation: 0 Gender: Zodiac sign: Mood:	Re: Serious Retract Question. Reply #1 - Apr 20^th, 2018 at 10:01pm Pour some epoxy in that mechanism Sandy, lots of epoxy. lol
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Glen Club Member Offline Forum User LastOn: Today Join: Aug 5^th, 2011 Posts: 446 Reputation: 2 Sackville Gender: Zodiac sign: Awards: 2 Mood:	Re: Serious Retract Question. Reply #2 - Apr 21^st, 2018 at 7:38am I like it, that'll stiffen up those moving parts for sure . On a semi serious note, some retracts have adjustments, some don't. Have a look Sandy and see if there's some set screws.
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Fingers YaBB Moderator I still got all five! Offline Forum User LastOn: Today Join: Mar 22^nd, 2010 Posts: 3,157 Reputation: 0 Dartmouth Gender: Zodiac sign: Awards: 3 Mood:	Re: Serious Retract Question. Reply #3 - Apr 21^st, 2018 at 2:11pm No set screws Glen. The slop is right at the mouth of the trunion block, where the slot opens to accept the bar from the cylinder. Bar is out just a smidgeon too far so it slops. I CAN put shim stock or very thin washers on the pin holding the trunion, that will help a tad.
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Yak Man Club Member Galactic Twinkie Jet Pilot Extraordinaire Offline Forum User LastOn: Oct 26^th, 2024 Join: Mar 23^rd, 2010 Posts: 1,009 Reputation: 0 Gender: Zodiac sign: Awards: 5 Mood:	Re: Serious Retract Question. Reply #4 - Apr 22^nd, 2018 at 5:06am The metal used in ESM gear is so soft that all you can really do is squeeze it back together and hope. Of course the more you do that the weaker it gets. Also of you squeeze it to much the gear will stick.
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Fingers YaBB Moderator I still got all five! Offline Forum User LastOn: Today Join: Mar 22^nd, 2010 Posts: 3,157 Reputation: 0 Dartmouth Gender: Zodiac sign: Awards: 3 Mood:	Re: Serious Retract Question. Reply #5 - Apr 22^nd, 2018 at 10:25am Yak Man wrote on Apr 22^nd, 2018 at 5:06am: The metal used in ESM gear is so soft that all you can really do is squeeze it back together and hope. Of course the more you do that the weaker it gets. Also of you squeeze it to much the gear will stick. Try that I will..gently
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Glen Club Member Offline Forum User LastOn: Today Join: Aug 5^th, 2011 Posts: 446 Reputation: 2 Sackville Gender: Zodiac sign: Awards: 2 Mood:	Re: Serious Retract Question. Reply #6 - Apr 22^nd, 2018 at 2:33pm Sounds like a job for a 6" vice and a strong arm That'll fix those esm retracts for sure.
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Fingers YaBB Moderator I still got all five! Offline Forum User LastOn: Today Join: Mar 22^nd, 2010 Posts: 3,157 Reputation: 0 Dartmouth Gender: Zodiac sign: Awards: 3 Mood:	Re: Serious Retract Question. Reply #7 - Apr 22^nd, 2018 at 2:44pm mmmmm I was thinking 5 pound hammer and a 6" vice....
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Yak Man Club Member Galactic Twinkie Jet Pilot Extraordinaire Offline Forum User LastOn: Oct 26^th, 2024 Join: Mar 23^rd, 2010 Posts: 1,009 Reputation: 0 Gender: Zodiac sign: Awards: 5 Mood:	Re: Serious Retract Question. Reply #8 - Apr 23^rd, 2018 at 5:16am Or a little chunk of C4!
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Fingers YaBB Moderator I still got all five! Offline Forum User LastOn: Today Join: Mar 22^nd, 2010 Posts: 3,157 Reputation: 0 Dartmouth Gender: Zodiac sign: Awards: 3 Mood:	Re: Serious Retract Question. Reply #9 - Apr 23^rd, 2018 at 8:03am Now THAT I ha.......mmmmmmmmmmmmmmmmmmm
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Re: Serious Retract Question.
Reply #10 - Apr 23^rd, 2018 at 9:02pm

Still no set screws, as I determined before, but I WAS wrong on where the slop is. Not at the mouth of the trunion block!! Embarrassed

Good guess, but upon further examination, I found that when the gear is down, the back of the block comes up against a stop pin. So the block is held verticle by the rod in the pneumatic rod rising in the slot of the block, which goes to an over center, PLUS there is a cross pin that the trunion backs up against.
The pic shows the pin, and the block, and you can see the small gap. I have some brass shim stock that mic's about .1mm, and I can get 2 layers through the gap without affecting either up or down. but the slop remains... Angry

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gear_1_01_001.JPG (125 KB | 254 )

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Yak Man Club Member Galactic Twinkie Jet Pilot Extraordinaire Offline Forum User LastOn: Oct 26^th, 2024 Join: Mar 23^rd, 2010 Posts: 1,009 Reputation: 0 Gender: Zodiac sign: Awards: 5 Mood:	Re: Serious Retract Question. Reply #11 - Apr 24^th, 2018 at 6:04am That I can help you with. Just a matter of cutting an over sized pin. Or could knurl the existing pin.
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Fingers YaBB Moderator I still got all five! Offline Forum User LastOn: Today Join: Mar 22^nd, 2010 Posts: 3,157 Reputation: 0 Dartmouth Gender: Zodiac sign: Awards: 3 Mood:	Re: Serious Retract Question. Reply #12 - Apr 24^th, 2018 at 7:08am Than I WILL call you for assistance kind sir.
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