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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.

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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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.
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)
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Old 12-12-2020, 02:34 PM
JDA_BTR JDA_BTR is offline
Join Date: Dec 2013
Location: Baton Rouge, LA
Posts: 1,277

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.
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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Old 12-12-2020, 02:56 PM
MED MED is offline
Join Date: Jul 2015
Location: Aiken, SC
Posts: 720

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.
Miss March 2020
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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.
RV-14A 140466 In build - Final Assy.
RV-10 40253 N253RV Sold
Douglas, GA. 2020 Dues paid
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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.
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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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.
Tim Foster
Dues paid thru 2021
Building RV-14a kit # 140381
On wheels and making progress
182 Sold 😂
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Old 01-15-2021, 11:37 AM
Ron B. Ron B. is offline
Join Date: Nov 2007
Location: Yarmouth, Nova Scotia
Posts: 2,515

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?
Thanks Ron
RV-14 Flying
AirCam flying
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