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  #1  
Old 12-06-2020, 05:30 PM
Amazon-1 Amazon-1 is offline
 
Join Date: Oct 2019
Location: Richmond, VA
Posts: 58
Default I completed the SB-00027 RV-14A nose gear modification today

I expected this to be worse then it turned out to be. I would say the total time (including removing/reinstalling the cowling) was < 2 hours. I had one helper which made the job much easier but I think I could have done it by myself in a pinch.

Key ideas:

I weighed down the tail with two buckets of landscaping pebbles to take the weight of the nose gear. I then completely removed the nose gear leg to do the cuts. This required a small amount of effort to move the exhaust out of the way.

I used a 7/8" bimetal hole cutter from Milwaukee Tools to do most of the cutting. I used a Rockwell F80 oscillating tool to straighten the edges and a Dremel tool with a rotary sanding head to clean it all up.

I used both the bigger washer and the heavier duty cup on top of the shock absorber though I couldn't tell the difference between the old cup and the new one (other than the $25 it cost me to buy the new one from Van's).

I properly annotated my aircraft log book to reflect that the SB was complete.
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Bruce

2003 RV-8, N297NW, bought, flown, sold (~600 hours)
2007 RV-10, N662G, bought, flown, sold (~700 hours)
2020 RV-14A, N662F, built, just finished Phase I
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  #2  
Old 12-07-2020, 05:33 AM
jeffw@sc47's Avatar
jeffw@sc47 jeffw@sc47 is offline
 
Join Date: Aug 2014
Location: Simpsonville, SC (SC47)
Posts: 375
Default New cup is hardened

Amazon-1 Quote > ". . . difference between the old cup and the new one . . ."

I saw somewhere that the new cup is the same in every way but that it is hardened.
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Jeff Warren
Simpsonville, SC (@SC47 > 10nm NW Triple Tree)
1946 Bellanca Cruisair 14-13-2 (74 YRS OLD 8/1/20)
RV14A (N14ZT), Ser#140195, Start 10/11/14
Contribution made 12/2/20 (USArmy 2/67-2/70)
www.mykitlog.com/jeffw@sc47
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  #3  
Old 12-12-2020, 02:34 PM
JDA_BTR JDA_BTR is offline
 
Join Date: Dec 2013
Location: Baton Rouge, LA
Posts: 1,277
Default

I did it today the same way. Didn’t get the new cup just used the new washer. I did the gear mod off the plane. I’m impressed with those that did it swung down on the plane. I found it much easier off and leg in a vice.

Also took the opportunity to clean and regrease the bearing sleeves for the gear and to add a washer above the shock donuts since I had the little gap described in the plans.

Torquing the nut on top of the gear is tough with the oil filter on. Used a couple of universals to get it there.
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Ser 140142, RV-14A flying - N1463
Ser 83825, RV-8 building - N8638?
USN Ret, Urologist, AME, Repeat Offender

Last edited by JDA_BTR : 12-12-2020 at 02:37 PM.
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  #4  
Old 12-12-2020, 02:56 PM
MED MED is offline
 
Join Date: Jul 2015
Location: Aiken, SC
Posts: 720
Default

Quote:
Originally Posted by JDA_BTR View Post
Torquing the nut on top of the gear is tough with the oil filter on. Used a couple of universals to get it there.
Much easier with the oil filter off, but doable with it on. Use a long socket extension.
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MED
140236
N435MD
Miss March 2020
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  #5  
Old 12-12-2020, 03:31 PM
Bgill Bgill is offline
 
Join Date: Sep 2017
Location: Douglas, GA
Posts: 79
Default Wobble extension

I completed mine last week. I found a “wobble extension“ very handy to add a little off set / angle.
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Byron
RV-14A 140466 In build - Final Assy.
RV-10 40253 N253RV Sold
Douglas, GA. 2020 Dues paid
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  #6  
Old 12-16-2020, 09:05 PM
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bmarvel bmarvel is offline
 
Join Date: Aug 2005
Location: Grand Junction, CO
Posts: 98
Default Measure carefully...

I too just completed the SB but could not get either of two hole saws to cut through the steel. I ended up just using a dremel cut off wheel and grinding tips to get the job done. I did remove the strut from the airplane.

However, there is a problem with the dimensions stated in the SB. The opening to be created in the U-1406 nose gear leg is to allow the U-1416 nose gear link assembly to fit into that opening in the event of an off airport landing where the nose gear folds back under the fuselage.

When I measured the diameter of the U-1416, it showed 1.025 inches. But the SB shows the width of the slot to be 15/16 plus or minus 1/16. So the maximum width allowed is less than the diameter of the part that is supposed to slide into it. Maybe this is due to the thickness of powder coating?

I have a msg into Scott about it but have not heard back. I opted to set the slot width slightly larger than in the SB so as to accommodate the actual diameter of the U-1416 link assembly.
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Bill Marvel, ATP, A&P/IA
Grand Junction, CO
RV-8A N751MB -1700 hours, sold
Zenith 801 sold
RV-14A 140134, N465MM - 760 hours and climbing
Dues paid every year
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  #7  
Old 01-13-2021, 05:20 PM
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tfoster100 tfoster100 is offline
 
Join Date: Feb 2011
Location: Southlake, TX
Posts: 104
Default Nosewheel SB

I’m still building and hadn’t mounted it yet so the modification was fairly easy. Just used a cutting wheel and grinder and made several straight cuts then cleaned up edges with Dremel. Primed it and painted and good as new.

https://www.dropbox.com/sc/s7mhkat31...CrtcKWuXISkC2a
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Tim Foster
Dues paid thru 2021
Building RV-14a kit # 140381
On wheels and making progress
182 Sold 😂

https://eaabuilderslog.org/?s=tfoster
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  #8  
Old 01-15-2021, 11:37 AM
Ron B. Ron B. is offline
 
Join Date: Nov 2007
Location: Yarmouth, Nova Scotia
Posts: 2,515
Default

Van’s has my replacement U-01420-1 on back order. I would like to put my 14 back together and was wandering if the larger washer was anything special other than one inch in diameter with a 3/8” hole? Van’s is so busy I hate bothering them. Any reason I could just drill open to 3/8” a large diameter AN washer?
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Thanks Ron
RV-10 SOLD
RV-14 Flying
AirCam flying
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