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Seperating cage from boom tube

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cedavis

Joined: 05 Jun 2006
Posts: 23
Location: Malvern, PA

Posted: Sun Jan 07, 2007 1:08 pm Post subject: Seperating cage from boom tube

I'm in the midst of a major rebuild of my Firefly, and have hit a

snag.   In order to repair some cage damage, I need to separate the

cage from the boom tube.  After stripping the cage completely, it was

time to pull the large bolt out of the "H frame".  However, it doesn't

want to come out.  



I've been reluctant to use much force, since it's such a structurally

critical part of the plane.  Any suggestions?



Thanks,



Chuck

Malvern, PA

ul15rhb(at)juno.com
Guest

Posted: Sun Jan 07, 2007 4:43 pm Post subject: Seperating cage from boom tube

Chuck, take another 3/8" bolt and pound it out. It will come out.



Ralph



-- "Charles Davis" <ceddavis(at)gmail.com> wrote:




I'm in the midst of a major rebuild of my Firefly, and have hit a

snag.   In order to repair some cage damage, I need to separate the

cage from the boom tube.  After stripping the cage completely, it was

time to pull the large bolt out of the "H frame".  However, it doesn't

want to come out.  



I've been reluctant to use much force, since it's such a structurally

critical part of the plane.  Any suggestions?



Thanks,



Chuck

Malvern, PA





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APilot(at)webtv.net
Guest

Posted: Sun Jan 07, 2007 9:11 pm Post subject: Seperating cage from boom tube

When parts do not come apart easily, such as aluminum gear legs which

have galvanic corrosion with the steel housings, I use liquid wrench and

let it sit.  If there is no flameable stuff near, I will hit the stuck

area with some heat and immediately after add more liquid wrench.

Sometimes, it does not work, but ususally it does.

jeepacro(at)cox.net
Guest

Posted: Sun Jan 07, 2007 9:18 pm Post subject: Seperating cage from boom tube

What does the rest of the plane look like?  Are you flying it?

--

Rob.



---- APilot(at)webtv.net wrote: 

 	  Quote: 	
		   

 

 When parts do not come apart easily, such as aluminum gear legs which

 have galvanic corrosion with the steel housings, I use liquid wrench and

 let it sit.  If there is no flameable stuff near, I will hit the stuck

 area with some heat and immediately after add more liquid wrench.

 Sometimes, it does not work, but ususally it does.

icrashrc

Joined: 16 Mar 2006
Posts: 247
Location: Mishawaka, In

Posted: Mon Jan 08, 2007 2:36 am Post subject: Re: Seperating cage from boom tube

Soak both ends of the bolt with a good penetrating oil. Do that a few times over at least a 24 hour period. Then turn the bolt while a friend taps the other end with a drift and hammer. Turn and tap at the same time and it should walk right out. If it gives you any trouble you may want to drill a hole in the end of the bolt slightly larger than the end of the drift. That will keep the end of the bolt from mushrooming so easy.

_________________
Scott

www.ill-EagleAviation.com

do not archive

cedavis

Joined: 05 Jun 2006
Posts: 23
Location: Malvern, PA

Posted: Mon Jan 08, 2007 3:37 am Post subject: Seperating cage from boom tube

Rob - the wings, tail feathers are off.  The cage is completely

stripped except for sitting on the landing gear.  i.e; no seat,

covering, fuel tank, engine, nose cone or fabric...



Needless to say, it's not flying.  



The consensus seems to be just push it out with a punch or another bolt.



Now, if everyone on the list would send me $1000 to help out with the plane...



Chuck

jeepacro(at)cox.net>

Subject: Re: Seperating cage from boom tube

What does the rest of the plane look like?  Are you flying it?

--

Rob.



---- APilot(at)webtv.net wrote:

 	  Quote: 	
		  

 When parts do not come apart easily, such as aluminum gear legs which

 have galvanic corrosion with the steel housings, I use liquid wrench and

 let it sit.  If there is no flameable stuff near, I will hit the stuck

 area with some heat and immediately after add more liquid wrench.

 Sometimes, it does not work, but ususally it does.

e.bayliss(at)blueyonder.c
Guest

Posted: Mon Jan 08, 2007 10:46 am Post subject: Seperating cage from boom tube

Hi all

  I have often come across motorcycle engine mounting bolts ( where they go

right through the crankcases)   stuck / corroded into place and believe it

or not a good soaking overnight in coke     (coca cola the drink not the

other type)   will often free it up. I believe it is something to do with

the mildy acidic properties (or something like that) in the coke.Its worth

trying if nothing else moves it

 Eddie Bayliss

(uk)



---

robbie.robertson(at)mail.
Guest

Posted: Mon Jan 08, 2007 11:10 am Post subject: Seperating cage from boom tube

Happy New Year!

Hope all is well with you (a part from this bloddy awful weather that is)...

Back from Tenerife and missing the warm sun already.

Haven't been to Houghton yet, but I bet it's still as wet as when I left (if not worse). Itching to try out the new prop (

Are you not on MSN messenger any more?

Regards, Robbie

[quote] ---

jindoguy(at)gmail.com
Guest

Posted: Mon Jan 08, 2007 12:01 pm Post subject: Seperating cage from boom tube

It won't help you get the bolt out, but I have a similar problem with the rocker box studs on my Troublehead Vibraglide.Water seeps and in causes dissimilar metal corrosion. I slobber the studs up with anti sieze compound and the rocker boxes slide right off when required. 



Rick



On 1/8/07, e.bayliss <e.bayliss(at)blueyonder.co.uk (e.bayliss(at)blueyonder.co.uk)> wrote:[quote] --> Kolb-List message posted by: "e.bayliss" <e.bayliss(at)blueyonder.co.uk (e.bayliss(at)blueyonder.co.uk)>



 Hi all

  I have often come across motorcycle engine mounting bolts ( where they go 

right through the crankcases)   stuck / corroded into place and believe it

or not a good soaking overnight in coke     (coca cola the drink not the

other type)   will often free it up. I believe it is something to do with 

the mildy acidic properties (or something like that) in the coke.Its worth

trying if nothing else moves it

 Eddie Bayliss

(uk)



---

WhiskeyVictor36(at)aol.co
Guest

Posted: Wed Jan 10, 2007 7:04 am Post subject: Seperating cage from boom tube

In a message dated 1/7/2007 4:09:10 P.M. Eastern Standard Time,  ceddavis(at)gmail.com writes:

  	  Quote: 	
		  some    cage damage 	


 

 HEY CHUCK,

  

 You didn't say what caused the damage!   : >(   

  

 Bill  Varnes

Original Kolb FireStar

Audubon NJ

Do Not  Archive

  [quote][b]

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