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  #1  
Old 04-22-2021, 10:29 AM
BenPoff BenPoff is offline
 
Join Date: Jun 2019
Location: Pensacola, FL
Posts: 19
Default Tailwheel Spring Removal

Anyone ever tried to remove a tailwheel spring? I want to replace mine on my RV-4, but it seems to be stuck. Any tricks out there? Thanks!
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  #2  
Old 04-22-2021, 10:54 AM
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bjdecker bjdecker is online now
 
Join Date: Jun 2005
Location: Georgetown, TX
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I did this on my RV-7 a while back.

I applied Mouse Milk in the bolt hole, and tapped on the steel a bit. I then used a butane torch and pointed the flame "close" to where the tail spring went into the fuselage. I used the aft most bolt holes as leverage points to twist and/push-pull the spring.

It took a bit, I found that applying a "shock" twisting moment broke it free.
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Retired Firmware Guy and Airplane Builder

2020 RV-14 QB -- Under construction - Tailcone & Empennage Complete.
2018 RV-7 QB -- Built, Flying
2007 RV-7 QB -- Built, Drowned, Resurrected and flying
1998 RV-8 QB -- Started, Sold
1986 Mooney 205SE
1980 Mooney 231

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  #3  
Old 04-22-2021, 11:17 AM
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Carl Froehlich Carl Froehlich is online now
 
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When you put the new one in, remember to grease it. That will make the next time a lot easier.

Same goes for gear legs and such.

Carl
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  #4  
Old 04-22-2021, 11:27 AM
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Jpm757 Jpm757 is offline
 
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Anti-seize works well for the install.
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RV6 #20477 completed 1991 sold.
RV7 #72018 N767T first flight 11/21/2017
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1941 J3 Cub skis, floats.
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  #5  
Old 04-22-2021, 12:23 PM
smithflys23 smithflys23 is offline
 
Join Date: Feb 2017
Location: Jupiter
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Quote:
Originally Posted by BenPoff View Post
Anyone ever tried to remove a tailwheel spring? I want to replace mine on my RV-4, but it seems to be stuck. Any tricks out there? Thanks!
Leave the tail wheel attached. Once you remove the front bolt, You can use the tail wheel as leverage to twist the spring while pulling it out. There is some good information on flyboyaccesories website.

http://flyboyblog.com/wp-content/upl...dification.pdf

Last edited by smithflys23 : 04-22-2021 at 12:26 PM. Reason: Link to documents
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  #6  
Old 04-23-2021, 10:34 AM
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vfrazier vfrazier is offline
 
Join Date: Jan 2007
Location: Mount Vernon, IN
Posts: 1,335
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What Smithflys23 said is accurate.

The Flyboy PDF gives good info too. (I wrote it.) Be sure to chock the mains securely so you can PULL and TWIST on the tailwheel spring. Some are very stubborn, but they always come out.
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Vince Frazier
www.f1aircraft.com
F1 Rocket and F4 Raider components
1-888-F1AIRCRAFT (1-888-312-4727)
www.flyboyaccessories.com
RV and Rocket Accessories, Tailwheels, Tools, & More
1-888-8FLYBOY (1-888-835-9269)

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F1-H Rocket "Crazy Horse" - sold
RV-4 "Chief Pontiac" - sold in 1994, purchased in 2018
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  #7  
Old 04-23-2021, 11:49 AM
Freemasm Freemasm is offline
 
Join Date: Nov 2017
Location: Orlando
Posts: 343
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You'll get a ton of different opinions but KRoil is a great penetrant and corrosion lifter/eater. Aero Kroil to be specific. Aerospace techs (unofficially) live by it. It can only help you here.
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  #8  
Old 04-26-2021, 09:36 AM
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vfrazier vfrazier is offline
 
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Quote:
Originally Posted by Freemasm View Post
You'll get a ton of different opinions but KRoil is a great penetrant and corrosion lifter/eater. Aero Kroil to be specific. Aerospace techs (unofficially) live by it. It can only help you here.
And it smells like manliness. I use it for cologne. The wife goes bananas.
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Vince Frazier
www.f1aircraft.com
F1 Rocket and F4 Raider components
1-888-F1AIRCRAFT (1-888-312-4727)
www.flyboyaccessories.com
RV and Rocket Accessories, Tailwheels, Tools, & More
1-888-8FLYBOY (1-888-835-9269)

F4 Raider - under construction
F1-H Rocket "Crazy Horse" - sold
RV-4 "Chief Pontiac" - sold in 1994, purchased in 2018
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  #9  
Old 04-27-2021, 09:56 PM
BenPoff BenPoff is offline
 
Join Date: Jun 2019
Location: Pensacola, FL
Posts: 19
Default Tailspring removal - problem solved

Thanks everyone that posted advice! As usual, great suggestions and using a combination of them did the trick. It wasn't easy, but the advise to be persistent was the main thing I think for this instance. It took some beating on with a brass hammer, but it did eventually come loose! Problem solved!
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