VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics

  #1  
Old 12-23-2018, 06:44 PM
WingnutWick's Avatar
WingnutWick WingnutWick is offline
 
Join Date: Jun 2013
Location: Lemoore
Posts: 146
Default Getting smart on the 6A

Hello all,

I have had an RV-8 for about 5 years and have done all my own work on it. My girlfriend just bought an RV-6A and Iím sure Iíll be the primary maintainer for it as I am for the 8. That being said working on the 8 has been my only experience and has also been my learning platform.

Iím just writing to see if anyone has any big-ticket motherhood items about the 6A that I wouldnít necessarily know about from working with the 8?

I do have a couple initial questions:

1. Accessing behind the panel - besides working from below, does the panel just unscrew and detach like the 8s?

2. Brakes - Iíve noticed that her pilot side (left seat) right brake pedal is soft and left one feels good but on the passenger side, itís the swapped with the left brake almost going to the floor. Before I go diving my 6ft4 frame under her panel I was wondering where the servicing needs to occur. Iím assuming itís not on the brake assembly/pad side as both sides seem good depending on which seat youíre in. My 8 with only brakes in front and reservoirs mounted on each pedal, this is new to to me.

Alll your help, advice, and 6A wisdome is appreciated!!!

Happy Holidays

-Wingnut
__________________
-Wingnut
Rhino driver by trade
RV-8 O-360
Reply With Quote
  #2  
Old 12-23-2018, 09:49 PM
flytoday's Avatar
flytoday flytoday is offline
 
Join Date: Jun 2011
Location: Houston, TX
Posts: 358
Default -6A Examination

Make sure the bracket that restrains the nosewheel from castering 360 degrees is oriented properly! Also look as the single bolt or pin that is holding the nose strut into the engine mount, and check it for excessive wear. That pin/bolt failing has caused some prop strikes.

Carl
..
__________________
flytoday
Dual PMags, Trio Pro Pilot, MGL V6, Garmin G5, GDL39, GDL82, FFlight
N229RV - RV6A
..
Reply With Quote
  #3  
Old 12-24-2018, 06:24 AM
Skysailor Skysailor is offline
 
Join Date: May 2011
Location: Atlanta, GA
Posts: 182
Default Nose shimmy

You will also need a fish scale to adjust the tension of the nose wheel turning with the nose off the ground. You will only need verify this each condition inspection as it does not change much but too little may cause nose wheel shimmy.
__________________
RV4

Paid through 2018! How about you?
Reply With Quote
  #4  
Old 12-24-2018, 07:48 AM
Raymo's Avatar
Raymo Raymo is offline
 
Join Date: Nov 2014
Location: Richmond Hill, GA (KLHW)
Posts: 1,962
Default

Adding to the above, check that all related SBs have been complied with.

The panel will come out, once all screws are removed (tip-up or slider?). With the tip-up, you have good access with the canopy tipped straight up or removed.

Bleed the brakes with a pressure pod from the bottom up and see if that solves your soft pedal problem. If not, you will probably need to rebuild that cylinder (easy peasy).

Find an experienced mechanic or A&P (you'll need one for the CI) to inspect your work. A second set of eyes is always a good idea.
__________________
Ray
RV-7A - Slider - N495KL - First flt 27 Jan 17
O-360-A4M w/ AFP FM-150 FI, Dual PMags, Vetterman Trombone Exh, SkyTech starter, BandC Alt (PP failed after 226 hrs)
Catto 3 blade NLE, FlightLines Interior, James cowl, plenum & intake, Anti-Splat -14 seat mod and nose gear support
All lines by TSFlightLines

"The object of the game, gentlemen, is not to cheat death: the object is not to let him play."
Patrick Poteen, Sgt. U.S. Army
Reply With Quote
  #5  
Old 12-24-2018, 10:13 AM
rvbuilder2002 rvbuilder2002 is offline
 
Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 8,145
Default

Early plans for the 6A had the left pilot side pedal plumbed to the left brake and the right passenger pedal plumbed to the right brake when brakes were installed on both sides.
This was done to simplify the plumbing (it was an easy path from the right passenger pedal to the right wheel).
This meant that the pilot right side pedal and the passenger left side pedal were operating through the opposite side pedal before influencing the wheel caliper.

Service history showed that this was less than ideal because if the system got low on fluid, the pilots right pedal would be the first one to quit working so the the plumbing was changed to have both the pilot side pedals plumbed directly to the calipers and the passenger pedals piggybacked as secondary.
It also made it much easier to add passenger pedals as a retrofit.
__________________
Any opinions expressed in this message are my own and not necessarily those of my employer.

Scott McDaniels
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
Reply With Quote
  #6  
Old 12-24-2018, 10:25 AM
az_gila's Avatar
az_gila az_gila is offline
 
Join Date: Jan 2005
Location: 57AZ - NW Tucson area
Posts: 9,870
Smile

Quote:
Originally Posted by rvbuilder2002 View Post
Early plans for the 6A had the left pilot side pedal plumbed to the left brake and the right passenger pedal plumbed to the right brake when brakes were installed on both sides.
This was done to simplify the plumbing (it was an easy path from the right passenger pedal to the right wheel).
This meant that the pilot right side pedal and the passenger left side pedal were operating through the opposite side pedal before influencing the wheel caliper.

......
If it was built to plans that old, the owner should probably check that overhead pedals are installed instead of the older floor mounted ones.
__________________
Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
Reply With Quote
  #7  
Old 12-24-2018, 11:58 AM
WingnutWick's Avatar
WingnutWick WingnutWick is offline
 
Join Date: Jun 2013
Location: Lemoore
Posts: 146
Default Good stuff!

Awesome, this is exactly the kind of stuff I was looking for. This coming weekend when Iím back in town Iíll be diving into it all and Iíll see if I can tell if the brakes are build to those old specs. Sounds like that may be the case given the differential feeling. It sat for a while so it may be just be a little low. Does the recommended method for adding fluid and bleeding change with the different systems?

For the nose gear and fish scale calibrating, Iíll search the threads. Iím sure there are plenty of chats out there about that!

Not a tip up. For some reason I always though all 6ís had that easy access and was a little bummed when I saw hers didnít. Thankfully her panel is pretty squared away.
__________________
-Wingnut
Rhino driver by trade
RV-8 O-360
Reply With Quote
  #8  
Old 12-24-2018, 12:15 PM
rvbuilder2002 rvbuilder2002 is offline
 
Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 8,145
Default

Quote:
Originally Posted by az_gila View Post
If it was built to plans that old, the owner should probably check that overhead pedals are installed instead of the older floor mounted ones.
The hung from above pedals are simpler to install and have a bit better geometry for some feet sizes and they are much easier to preposition for different leg length, but there is no reason to change floor mounted pedals if that is what it has.
__________________
Any opinions expressed in this message are my own and not necessarily those of my employer.

Scott McDaniels
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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 09:44 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.