VansAirForceForums  
Home > VansAirForceForums

-POSTING RULES
-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.


Go Back   VAF Forums > Model Specific > RV-7/7A
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 06-03-2021, 07:31 PM
RVphil's Avatar
RVphil RVphil is offline
 
Join Date: Oct 2015
Location: Springdale, AR
Posts: 14
Default Remediating step crack: Weld or buy new?

How should I proceed here? Condition inspection on my 7A revealed cracks on the insides of both sides, just below the mount plate weld. Both cracks parallel about 1/8" below the weld. Passenger side crack migrated to the end, allowing the step to be wiggled.

A few searches on here revealed some folks welding and reinforcing the cracked area while others indicated Vans improved manufacturing of the steps so would appreciate post-use experience welding these steps versus buying new ones.
__________________
🇺🇸 Phil Hodge/KASG/RV-7A/IO-390 🇺🇸
Reply With Quote
  #2  
Old 06-03-2021, 07:37 PM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 4,540
Default Weld

Quote:
Originally Posted by RVphil View Post
How should I proceed here? Condition inspection on my 7A revealed cracks on the insides of both sides, just below the mount plate weld. Both cracks parallel about 1/8" below the weld. Passenger side crack migrated to the end, allowing the step to be wiggled.

A few searches on here revealed some folks welding and reinforcing the cracked area while others indicated Vans improved manufacturing of the steps so would appreciate post-use experience welding these steps versus buying new ones.
Another option.
Send them to Russ McCutcheon. He is the one that fabricates them and the new gusset. He welded mine. Not installed yet but I haven't read anyone with new ones cracked.
russmccutcheon@gmail.com
http://mccutcheonmetalfabricationavi...com/index.html
__________________
Larry Larson
Estes Park, CO
wirejock at yahoo dot com
Donated 01/01/2021, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
Empennage, wings, fuse, finishing kit, now FWF
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
Reply With Quote
  #3  
Old 06-04-2021, 05:15 AM
Desert Rat Desert Rat is offline
 
Join Date: Aug 2018
Location: Wichita KS
Posts: 609
Default

I've got a set of new steps that I decided not to use. They were manufactured less than a year ago and appear to have a beefed up area where they typically crack.

If you're interested in going the replacement route, I'd sell them for what I paid. Get them off my shelf and save somebody else the tax of buying them from Vans.

text me at 480-440-8817 if you'd like pictures
__________________
Terry Shortt
AGI, CFI, CFII, MEI, A&P, Janitor
RV7 Empennage & Wing done
Fuselage in process
#72651
https://eaabuilderslog.org/?blprojec...t=all&listcat=
Reply With Quote
  #4  
Old 06-04-2021, 05:31 AM
RVDan RVDan is offline
 
Join Date: Jun 2012
Location: Frederick, MD
Posts: 933
Default

Russ will repair them and install the gusset at a low cost. The 2 way shipping was more than the repair cost though.
__________________
Dan Morris
Frederick, MD
PA28-140
Hph 304CZ
RV6 built and sold
N199EC RV6A flying
Retired Aerospace Engineer and A&P/IA
Reply With Quote
  #5  
Old 06-04-2021, 07:37 AM
Steve Steve is offline
 
Join Date: Jan 2005
Location: Roy, Utah
Posts: 1,210
Default

I replaced one of my steps with a new one (the crack propagated around to the outer face) and repaired the other with the gusset purchased from Vans.

I recommend going the weld repair route because:
1. It was much cheaper to buy the gusset and have a weld shop perform the welding after you massage the gusset to fit and strip all paint from the weld area.
2. It was a pita to match up existing rivet holes in the fuselage to the new step and then to match up the hole drilled in the step tube to the nylon block under the baggage floor.

In either case, you must remove the forward section of the baggage floor and remove the step which may be prosealed to the fuselage. I used the steel pop rivets Vans supplied to attach the repaired step to the fuselage.
__________________
Five Sierra Fox
RV-9A
Utah
Reply With Quote
  #6  
Old 06-04-2021, 08:07 AM
ty1295 ty1295 is offline
 
Join Date: Aug 2011
Location: Jeffersonville, IN
Posts: 481
Default

I have repaired one step while still on the plane with success. The crack was completely around the back and coming to the outside. Saved the hassle of removing the floor/step, etc.

I do have 30+ years of welding experience at hand though, which I think helped. Of course the paint did not survive on the step, but we were able to preserve the paint on the fuselage without any issues.
__________________
Jeff Scott
RV9A First Flight 9/30/19
Reply With Quote
  #7  
Old 06-05-2021, 07:56 PM
RVphil's Avatar
RVphil RVphil is offline
 
Join Date: Oct 2015
Location: Springdale, AR
Posts: 14
Default

Thanks for the insights thus far. I bought this RV used so at a disadvantage as to what's involved in removing the step. I realized it's not an easy task in doing so after removing the nearest side panel and looking under the floor. A local TIG welding expert is to take a closer look at the cracks next week and will go with his assessment.
__________________
🇺🇸 Phil Hodge/KASG/RV-7A/IO-390 🇺🇸
Reply With Quote
  #8  
Old 06-05-2021, 08:15 PM
PaulvS's Avatar
PaulvS PaulvS is offline
 
Join Date: Aug 2019
Location: Western Australia
Posts: 670
Default Vans notification

Here is a link to the Vans notification for how to repair cracked steps, just in case you don't have it. The gussets are $2.70 each.
https://www.vansaircraft.com/service.../n-2018-03-21/
__________________
Paul vS (yes I'm also a Van)
Building RV-6A #22320 O-320 FP. Wings and tail complete, working on fuselage
Flying my Aeroprakt A-22 STOL and the aero club's RV-9A while I build
Reply With Quote
  #9  
Old 06-05-2021, 08:46 PM
emsvitil's Avatar
emsvitil emsvitil is offline
 
Join Date: Oct 2019
Location: SoCal
Posts: 556
Default

If you're replacing the step, how hard is it to change from riveted on to bolted on?
__________________
Ed
Reply With Quote
  #10  
Old 06-05-2021, 09:12 PM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 4,540
Default Bolted

Quote:
Originally Posted by emsvitil View Post
If you're replacing the step, how hard is it to change from riveted on to bolted on?
You may want to ask Vans. I don't think the side skin will tolerate enlarging a bunch of holes to bolt size. The steps.are riveted with #4 pull rivets and one bolt through a delrin spacer at the end of the pipe. Biggest part of the job is removing pop riveted floor panels.
__________________
Larry Larson
Estes Park, CO
wirejock at yahoo dot com
Donated 01/01/2021, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
Empennage, wings, fuse, finishing kit, now FWF
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 06:59 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.