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  #1  
Old 09-09-2021, 06:27 PM
GHARBEN GHARBEN is offline
 
Join Date: Nov 2019
Location: Gainesville, Georgia
Posts: 51
Default Jacking the RV 4

I have asked this before but I need reassurance. Is is permissible to jack up the TV 4 at the tie down ring on the wing? I am installing new tires and that appears to be the best way.
G Harben
N12HR. O320f
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  #2  
Old 09-09-2021, 06:34 PM
Kyle Boatright Kyle Boatright is online now
 
Join Date: Aug 2005
Location: Atlanta, GA
Posts: 4,636
Default

Lots of people do it that way. I've always felt more comfortable using something like this:

https://www.aircraftspruce.com/catal...ges/rvjack.php

You shove the polished rod into the (hollow) axle, then use a floor jack to lift. Once at the appropriate height, you pull the wheel outboard and rest the axle on wooden blocks. Reverse to install a wheel.
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Kyle Boatright
Marietta, GA
2001 RV-6 N46KB
2019(?) RV-10
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  #3  
Old 09-09-2021, 07:36 PM
GHARBEN GHARBEN is offline
 
Join Date: Nov 2019
Location: Gainesville, Georgia
Posts: 51
Default

Neat idea!
I just ordered one!
Thanks
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  #4  
Old 09-10-2021, 04:50 AM
fixnflyguy fixnflyguy is offline
 
Join Date: Jan 2006
Location: Winston-Salem, N.C.
Posts: 1,457
Default What Kyle said..

I also use the method Kyle mentioned. So happens my Snap On 1/2" breaker bar handle is a perfect fit. Remove the axle nut, slide the bar in, jack it and slide the wheel off ,set on wood block underneath. Minimal risk of a jacking incident...(I have seen a Boeing 767 fall of jacks at my day job)..no Bueno.
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RV-4/N76WE
8A7 / Advance NC
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  #5  
Old 09-10-2021, 06:03 AM
Avengerboss Avengerboss is offline
 
Join Date: Dec 2008
Location: Ramona, Calif.
Posts: 365
Default Jacking an RV4

Checkout the Jackpoints for most RVs at Flyboy accessories,
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Finished and flying our 10
Got me another RV8 to finish building
finished & flying 14A assist build SOLD
Building another 7 !!! Finished SOLD
another 14A assist build, Back at it again
Built: two 7s, two 8's, two 9As,10,12, assisted in 2 RV14As ,RANS S7
RV Jackpoints mfg'r "wintermotorsports.com"
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  #6  
Old 09-10-2021, 09:55 AM
sjhurlbut sjhurlbut is offline
 
Join Date: Jan 2005
Posts: 893
Default

I don't recommend it. Use the RV jack and modified axle nuts. I've seen it go very bad once when the jack slipped and penetrated the wing skin. Alternatively you can hoist the engine up.

Stu


Quote:
Originally Posted by GHARBEN View Post
I have asked this before but I need reassurance. Is is permissible to jack up the TV 4 at the tie down ring on the wing? I am installing new tires and that appears to be the best way.
G Harben
N12HR. O320f
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  #7  
Old 09-10-2021, 10:47 AM
Roy Thoma's Avatar
Roy Thoma Roy Thoma is offline
 
Join Date: Aug 2011
Location: Hillsboro, OR
Posts: 183
Default CMW E-Lift

Another option is the Card Machine Works E-Lift. See https://elift.cardmachineworks.com/

Regards,
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Roy

N174RT (RV-7A) first flight 5/31/11, 1890hrs as of Sept 2021:
Tip-up, Lycon IO-360 EXP, WW 74HRT, AFS 5600T, AF-Pilot, IFD440, SL-30, echoUAT, D100 for backup, CQ1 headsets, CMW E-Lift

Our other riveted aluminum monocoque RV is a 2012 25' Eddie Bauer Airstream

Past aluminum monocoque vehicles:
N601RT (CH601HDS) First flight 5/03, 1550hrs after flying 8 years: 912ULS, GNS430W, SL-30, D10A Sold
1995 Midnight Pearl NSX w/BBSC Sold

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  #8  
Old 09-10-2021, 01:01 PM
Norman CYYJ Norman CYYJ is offline
 
Join Date: Feb 2005
Location: Victoria B.C.
Posts: 1,436
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Lift under the main spar with your back near the wing tip. Have someone slide a well padded saw horse under the wing. RV4s are easy to lift this way.
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  #9  
Old 09-11-2021, 03:50 PM
n82rb's Avatar
n82rb n82rb is offline
 
Join Date: Jan 2007
Location: fort myers fl
Posts: 1,071
Default

Quote:
Originally Posted by sjhurlbut View Post
I don't recommend it. Use the RV jack and modified axle nuts. I've seen it go very bad once when the jack slipped and penetrated the wing skin. Alternatively you can hoist the engine up.

Stu
only if you are lifting using the engine mount. NEVER LIFT AN AIRCRAFT USING THE LIFT LUG ON THE ENGINE
doing that you are putting a lot if force on a very expensive part that was not designed to take that load.

bob burns
RV-4 N82RB
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  #10  
Old 09-30-2021, 06:26 PM
GHARBEN GHARBEN is offline
 
Join Date: Nov 2019
Location: Gainesville, Georgia
Posts: 51
Default My Jack Choice

Thanks again to everyone. I ordered:

https://www.aircraftspruce.com/catal...ges/rvjack.php

It works as advertised. I am well satisfied. Every idea was good but this was my choice.
Thank you Kyle!
G Harben
N12HR O320
Built in early 90ís has 900hrs
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