|
-
POSTING RULES

-
Donate yearly (please).
-
Advertise in here!
-
Today's Posts
|
Insert Pics
|

01-15-2015, 04:34 PM
|
 |
|
|
Join Date: Jan 2013
Location: brazil
Posts: 316
|
|
with either a SB or not, i will certanly not install this device that forced two landings, I will put my breahter tube above my exhaust, simple solution, maybe parcial, but safer
__________________
Guilherme Plassmann (Brazil)
RV7A (Mr Flame) slow kit S/N 74285 Finished 04/14/15😀😀😀😀flying
G3X
Superior IO360
Sterba prop
TSFlightlines hoses
LR30,PRM1,C560,C510S,HS125,B350 FAA/ANAC Pilot

Donation made 2016
|

01-15-2015, 05:43 PM
|
|
|
|
Join Date: Sep 2009
Location: London
Posts: 167
|
|
Quote:
Originally Posted by Guilhermepilot
with either a SB or not, i will certanly not install this device that forced two landings, I will put my breahter tube above my exhaust, simple solution, maybe parcial, but safer
|
There are no guarantees.
Just because you did not route the tube to exhaust does not mean that you are 100% safe... the tube can ice up during certain conditions, and blow your seal just the same. (google for whistle slot)
|

01-15-2015, 06:04 PM
|
 |
|
|
Join Date: Apr 2012
Location: West Fargo, ND
Posts: 1,073
|
|
Enough is enough for me. I Removed mine today  . Kept the oil separator in place.
__________________
Derek Hoeschen
EAA Tech Counselor
RV-9A #92103 - N803DK
G3X, Superior XO-320, Dual Pmags, Catto 3B
www.mykitlog.com/dbro172/
1974 Bellanca Super Viking - N16AW - Flying
RV-8 #83565 - N184DK - building
1968 Mooney M20C - N6801N - Sold
1956 C-182 - N744W - Sold
Last edited by Dbro172 : 01-15-2015 at 10:13 PM.
|

01-15-2015, 06:51 PM
|
 |
|
|
Join Date: Mar 2007
Location: McKinney, TX
Posts: 1,261
|
|
Timely
I just did an oil change yesterday. I have done two others with the seperator installed and I have seen no coking. This time there was a slight bit of coking, this got me to thinking about what was different.
I have not taken any trips longer that an hour prior to this oil change done in August. In September I did a cross country that had two 4 hour legs. Implication being long extended time in cruise might be a contributing factor.
Next difference was that I started using Cam Guard with this last oil change. Since I had no coking prior to this my thought is that there might be something in the chemistry of the Cam Guard that causes the coking.
The last difference is the cooler temperatures of fall and winter.
I test the function of the valve every time the cowling comes off. So far everything has worked fine.
This is certainly a puzzling issue, I never considered that the valve had a mechanical failure mode that could cause a blockage.
Cheers
__________________
Mike "Nemo" Elliott
RV-8A (First Flight 12-12-12!)
KOCF
N800ME
www.mykitlog.com/rvg8tor
Dues Paid 2019
|

01-15-2015, 06:51 PM
|
 |
|
|
Join Date: Sep 2006
Location: Townsend, Montana
Posts: 3,179
|
|
enough is enough for me too.  if you want to just fly,then do that, but i like the whole airplane ownership thing
I will leave mine in place and check the complete system often. I like pulling the cowl for no reason anyway....another 2 minutes to check/clean the overboard line is child's play...heck I might find a chaffing starter cable or loose hose clamp somewhere. YMMV
__________________
Retired Dam guy. Life is good.
Brian, N155BKsold but bought back.
|

01-15-2015, 08:39 PM
|
|
|
|
Join Date: May 2009
Location: Colorado
Posts: 302
|
|
Quote:
Originally Posted by Dbro172
Enough is enough. Removed mine  . Kept the oil separator in place.
|
Good plan!
I see much conversation here about not giving up on the valve and continuing on with the system as an experiment as this is experimental aviation. We have a known problem here with the potential to bring down an airplane, No BS it's happened! I know all of our airplanes have a big placard that says EXPERIMENTAL. I would be willing to say at this time that the design of Vans aircraft by its self is safe and proven not much risk in the airframe it's self. It's where we go from the airframe that makes the real differences.
I am curious when we fly with a known defect like this how often you let your wife, son ,daughter, Mom, Dad etc. that they are part of an experiment or do you even give it a thought? Would you carry this experiment out over populated area,s putting people on the ground at the same risk you are willing to take?
I can pretty well guarantee that if the distributor of these valves new what they were being used for or of the problems they were having they would not let you buy one.
Wake up people.
Ryan
|

01-15-2015, 08:45 PM
|
|
|
|
Join Date: Dec 2005
Posts: 182
|
|
Inspection
I inspect mine every 25 hours. The only thing I've found is a small amount of light grey paste, which appears to collect where there is some weld penetration due to welding the tube to the curved plate that holds it in place. Looking at the coking in the picture, it appears to have collected in the same location. I have the AntiSplat kit with the relief valve and plan to keep inspecting at regular intervals.
|

01-15-2015, 10:06 PM
|
 |
|
|
Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,035
|
|
Quote:
Originally Posted by RVnoob
There are no guarantees.
Just because you did not route the tube to exhaust does not mean that you are 100% safe... the tube can ice up during certain conditions, and blow your seal just the same. (google for whistle slot)
|
Actually if you do detailed research on whistle slots and frozen breather tubes, you will find that it is mainly related to aircraft with breather installations that differ quite a bit from what is generally done on RV's.
We have comparatively tight fitting cowls, that don't pass much wasted cooling air. As a result the temps of the exit air are generally well above freezing. Even in very cold OAT's.
The other big difference is that the aircraft that have had freezing problems usually have the breather tube protruding outside the cowl, or very close to being outside on a cowl with a open bottom air exit opening.
Very different from the system on RV's.
In 25+ years of working with RV's, I don't remember ever hearing about a problem with an iced over breather, other than when people routed the breather line through the fuselage to have it exit below the rudder.
I am sure everyone can guess what the results of that were in below freezing temps.
__________________
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
|

01-15-2015, 11:45 PM
|
|
|
|
Join Date: Oct 2010
Location: Germany
Posts: 36
|
|
I think we all agree that VAF is the undisputed official RV forum. Maybe the time has come where we have a dedicated non aircraft specific page on this website where aftermarket vendors, listed alphabetically can put out their service bulletins.
This would be a valuable, potentially life-saving scource of information that can be visited by RV owners with completed aircraft.
Hopefully the value of this information will be recognised and prompt the tight fisted to pay their annual fees and keep this wonderful site up and running 
|

02-09-2015, 07:22 PM
|
|
|
|
Join Date: Sep 2005
Location: Gold Hill, NC
Posts: 21
|
|
RE: Service Bulletin 000-1
Just for a data point. I have had the Anti-splat Aero oil separator installed since flight #1 of my phase I flying in June. I have inspected it at 10 hrs, 25 hrs, and at 40 hrs. during oil changes. Although there has been no sign of build-up as previously mentioned by several posters, I decided to purchase the "safety bypass kit" for ease of mind. I just installed it this evening with 50 hours showing on the hobbs. My 1st 30 hours were run full rich and 75% during break-in and after that, I have been reducing power to 65% and leaning to ~ 75-100 degrees ROP. Carbed 360 with 9.0:1 pistons. Still no build up, only a slight greyish deposit on the sides of the tubing. PCV check valve still holding up fine - checks up with back pressure and allows full flow through to exhaust. Took some pictures of the saddle mount assembly with light showing through, but don't know how to post. Ran a gun bore brush through the tube and while it got slightly dirty (oily?), didn't dislodge any debris of any sort. Will keep checking anytime I have to decowl, but seems to be working fine for now. Maybe longer run times at hotter temps will be different. Certainly does seem to keep the belly cleaner.
|
| Thread Tools |
Search this Thread |
|
|
|
| Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -6. The time now is 01:32 AM.
|