 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
Matt Dralle
Site Admin
Joined: 08 Nov 2005
Posts: 26321
Location: Livermore CA USA
|
 Posted: Sun Apr 17, 2011 2:26 pm Post subject: "Worn Out" CT-Q67 Cable Assembly (Warning!) |
 |
|
Dear Listers,
At 170 hours on my RV-8 now, the Prop control had become increasing more difficult to move starting around 100 hours. The Mixture and Throttle have worked fine and continue to. All three controls use the standard "Green" control cables from Vans, typically a "CT-Qxx" part.
A couple of weeks ago, I disassembled the Governor end of the assembly and made sure that there was no binding or issues on that end. I even lightly lubed up the various moving bits. Yesterday, the Prop control became so difficult to move that I had trouble cycling the prop during run up. I pulled the whole throttle quadrant installation apart today to have a look. I got the cable completely out of the airplane and there are NO outward signs of wear or abuse of *any kind*. But even with the cable completely out of the plane and nothing connected to either end, it is almost impossible to move the cable!! I have a new CT-Q67 cable assembly for my front-mounted governor installation and I'm going to install that next.
But, I wanted to give everyone a heads up on these CT-Q controls. These things are built like they go on a Caterpillar Tractor, so I can't figure out why they would wear out like this.
If one of these controls starts getting stiff and tight, its probably not going to get any better. Replace it before it becomes a safety issue! Not a big deal on the Prop control, but on a throttle or mixture it could be a serious concern.
Best regards,
Matt
-
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com - Matt's RV-8 Construction Blog
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: 170+ Hours Total Time Since May 2 2010 Test Flight!
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
|
_________________
Matt Dralle
Matronics Email List Administrator |
|
| Back to top |
|
 |
speckter(at)comcast.net
Guest
|
| Posted: Sun Apr 17, 2011 3:51 pm Post subject: "Worn Out" CT-Q67 Cable Assembly (Warning!) |
|
|
Many of these control cables have a plastic liner. If they are routed near
a heat source they tend to melt internally and become difficult to move.
That might be your issue, it was for me.
Gary Specketer
--
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
|
|
|
| Back to top |
|
|
dlm34077(at)q.com
Guest
|
| Posted: Sun Apr 17, 2011 4:39 pm Post subject: "Worn Out" CT-Q67 Cable Assembly (Warning!) |
|
|
Contact John in purchasing at Vans; I had the same problem (at 400 TT) with
quadrant prop and mixture; He acknowledged that these are made from
Cablecraft Tuthill parts by an Oregon company and should last to TBO. It was
a PITA changing these with the engine on the airframe.
---
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
|
|
|
| Back to top |
|
|
dlm34077(at)q.com
Guest
|
| Posted: Sun Apr 17, 2011 4:41 pm Post subject: "Worn Out" CT-Q67 Cable Assembly (Warning!) |
|
|
Routing of my cables was per Vans specifications and they were protected by
additional external heat sleeves
---
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
|
|
|
| Back to top |
|
|
AV8ORJWC
Joined: 13 Jul 2006
Posts: 1149
Location: Aurora, Oregon "Home of VANS"
|
| Posted: Mon Apr 18, 2011 8:27 am Post subject: "Worn Out" CT-Q67 Cable Assembly (Warning!) |
|
|
Instrument Sales and Service on Airport Way, Portland, OR. They
manufacture for the OEM and will make any length, got a set once in 20
minutes during a lunch 1/2 hour. The initial lengths can sometimes be
problematically too short or slightly too long. Just right is a good
thing.
John
--
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
