|
-
POSTING RULES

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

06-23-2018, 07:31 PM
|
|
|
|
Join Date: Nov 2013
Location: Annapolis MD
Posts: 457
|
|
Broken exhaust hanger
Discovered during condition inspection. Has any ever had one of these break before? Any tips on ordering a new one? I believe this is a Vetterman system, but I don't see parts on their website (also called Friday and left a message - although it looks like they keep limited hours on Fridays (I wish I could do that.))
https://www.dropbox.com/s/qb172t5jb5..._0934.png?dl=0
__________________
CA
2000 RV-8A | O-360, SDS CPI, FP, G3X Touch, VP-X, EarthX | Eastern Shore | KESN
|

06-23-2018, 07:34 PM
|
 |
|
|
Join Date: Jun 2005
Location: Cedar Park, TX
Posts: 3,156
|
|
Yes, they have broken before. It is a simple piece of stainless tubing, easily fabricated in a few minutes after you source the tubing... from Vetterman Exhaust if you like  .
__________________
Scott Card
CQ Headset by Card Machine Works
CMW E-Lift
RV-9A N4822C flying 2200+hrs. / Cedar Park, TX
RV8 Building - fuselage / showplanes canopy (Done!)
|

06-23-2018, 07:38 PM
|
 |
been here awhile
|
|
Join Date: Dec 2004
Location: North Alabama
Posts: 4,301
|
|
Quote:
Originally Posted by maus92
Discovered during condition inspection. Has any ever had one of these break before? Any tips on ordering a new one? I believe this is a Vetterman system, but I don't see parts on their website (also called Friday and left a message - although it looks like they keep limited hours on Fridays (I wish I could do that.))
https://www.dropbox.com/s/qb172t5jb5..._0934.png?dl=0
|
RVers have been repairing exhaust hangars since....there were RV exhaust hangars.
Go to your local auto parts store and pick up a length of 3/8" steel brake line. A piece a couple of feet long will keep you stocked with exhaust hangers for many years to come. Gently flatten one end of a piece of brake line, drill the bolt hole, loosen the clamp on the rubber hose and replace your broken hanger. Keep a short piece of brake line in your flight kit for repairs when away from home.
|

06-23-2018, 09:03 PM
|
|
|
|
Join Date: Nov 2013
Location: Annapolis MD
Posts: 457
|
|
Thanks everyone, another project!
__________________
CA
2000 RV-8A | O-360, SDS CPI, FP, G3X Touch, VP-X, EarthX | Eastern Shore | KESN
|

06-24-2018, 08:20 AM
|
 |
|
|
Join Date: Feb 2005
Location: Bridgewater, MA - KPYM
Posts: 458
|
|
Left unresolved, a broken hanger can cause bigger problems. A good reminder to give each pipe a wiggle test as part of your preflight procedures.
__________________
Mike Draper
RV-8 N468RV
First Flight 11/13/2011
TMX0360, Pmags, CS
Bridgewater, MA
KPYM
|

06-24-2018, 09:07 AM
|
 |
|
|
Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
Posts: 2,597
|
|
I had a recurring ploblem with these flattened steel tubes breaking off just like yours. I replaced them with solid aluminum rod. Never had another problem.
Carl
|

06-24-2018, 10:26 AM
|
|
|
|
Join Date: May 2014
Location: Fort Worth, Texas
Posts: 436
|
|
Replacement Hangers
After I discovered a couple of broken ones, I sourced new ones from the folks up at Vetterman, who have designed a thicker, more robust set.
Approximately 100 hours since I?ve replaced them all with the newer ones and no breakage so far. Looks like a good fix.
I check them every time I pull the cowls off...when it?s also a good time to hit all the exhaust pivot joints and unions with a healthy dose of Mouse Milk to keep them able to move as they are designed to do.
You will develop a list of items that you?ll check every time you un-cowl ?just to be certain? or after having had an issue inflight...
The exhaust system and components are a good candidate for this list...among others.
__________________
Rob Schroer
RV-7/N75WV
YIO-360-M1B
New Braunfels, Texas (KBAZ)
VAF Monthly Donor
|

06-24-2018, 11:55 AM
|
 |
been here awhile
|
|
Join Date: Dec 2004
Location: North Alabama
Posts: 4,301
|
|
A couple of items I've learned after nearly twenty years of fiddlin' with exhaust hangers on the RV-6:
1) If you use steel tubing, the flattened end should be made with a gradual swage, not an abrupt swage as will result if you just slam the vice jaws down on it. A small radius swage is much more likely to break.
2) My earliest set of hangers used not only the flattened ends but also a bend in the flattened portion. That is certainly a recipe for failure. After repositioning clamps to eliminate any bends reliability went up considerably.
3) The aluminum/steel rod instead of steel tubing is a good solution if it fits the particular installation.
|

06-24-2018, 12:05 PM
|
|
|
|
Join Date: Aug 2005
Location: Atlanta, GA
Posts: 4,219
|
|
Quote:
Originally Posted by Sam Buchanan
A couple of items I've learned after nearly twenty years of fiddlin' with exhaust hangers on the RV-6:
1) If you use steel tubing, the flattened end should be made with a gradual swage, not an abrupt swage as will result if you just slam the vice jaws down on it. A small radius swage is much more likely to break.
2) My earliest set of hangers used not only the flattened ends but also a bend in the flattened portion. That is certainly a recipe for failure. After repositioning clamps to eliminate any bends reliability went up considerably.
|
Agree 100%.
__________________
Kyle Boatright
Marietta, GA
2001 RV-6 N46KB
2019(?) RV-10
|

06-24-2018, 12:53 PM
|
 |
|
|
Join Date: Aug 2006
Location: santa barbara, CA
Posts: 1,682
|
|
Quote:
Originally Posted by Sam Buchanan
If you use steel tubing, the flattened end should be made with a gradual swage, not an abrupt swage as will result if you just slam the vice jaws down on it. A small radius swage is much more likely to break..
|
What is your recommended technique for producing a gradual swage Sam?
Thanks
Erich
Last edited by erich weaver : 06-24-2018 at 01:45 PM.
|
| 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 09:18 AM.
|