VansAirForceForums  
Home > VansAirForceForums

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

- Today's Posts | Insert Pics


Go Back   VAF Forums > Model Specific > RV-12
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 12-29-2017, 04:20 PM
mwardle7 mwardle7 is offline
 
Join Date: Oct 2009
Location: Utah
Posts: 62
Default S-1207 Spinner Pitot Bushing

I can't seem to get Loctite 243 to hold the spinner pitot bushing in place over the long term. This is what the manual suggests, and it doesn't work well for me. Anyone else having this problem, or have found a better solution:

Also, does anyone know what material the bushing is made out of?
Reply With Quote
  #2  
Old 12-29-2017, 04:44 PM
AZLeeJay AZLeeJay is offline
 
Join Date: Dec 2013
Location: Phoenix
Posts: 108
Default

Quote:
Originally Posted by mwardle7 View Post
I can't seem to get Loctite 243 to hold the spinner pitot bushing in place over the long term. This is what the manual suggests, and it doesn't work well for me. Anyone else having this problem, or have found a better solution:

Also, does anyone know what material the bushing is made out of?
Mine came loose at 400hrs and I used pro-seal to reaffix it, that was only 25hrs ago but I think it'll hold.
Reply With Quote
  #3  
Old 12-29-2017, 06:09 PM
Mich48041 Mich48041 is offline
 
Join Date: Apr 2008
Location: Riley TWP MI
Posts: 2,736
Default

Loctite thread locker only cures between metal fasteners where it is not exposed to air (anaerobic). It will not cure when used between plastic parts.
__________________
Joe Gores
RV-12 Flying
Reply With Quote
  #4  
Old 12-29-2017, 09:09 PM
RFSchaller RFSchaller is offline
 
Join Date: Oct 2010
Location: Phoenix, AZ
Posts: 2,358
Default

I epoxied mine.
Reply With Quote
  #5  
Old 12-29-2017, 10:53 PM
DaleB's Avatar
DaleB DaleB is offline
 
Join Date: Sep 2012
Location: Omaha, NE (KMLE)
Posts: 1,921
Default

Mine departed somewhere around 200-ish hours. I don't know what the original builder used to secure it, but I used Proseal on the replacement.


BTW... I am just baffled by the recommendation to use blue Loctite. I'm sure there is some reason someone came up with that, but I can't imagine what it might be. It just seems like about the last thing you'd want to use for that application. Loctite does make some adhesives that would probably work fine, but 242 or 243 aren't among them.
__________________
Dale
Omaha, NE
RV-12 # 222 N980KM "Screamin' Canary" (bought flying)
Fisher Celebrity (under construction)
Previous RV-7 project (sold)
-=VAF=- 2017 dues paid

Last edited by DaleB : 12-30-2017 at 04:06 PM.
Reply With Quote
  #6  
Old 12-30-2017, 07:32 AM
yankee-flyer yankee-flyer is offline
 
Join Date: Jun 2009
Location: Dayton, OH
Posts: 838
Default I used epoxy after the first one

came loose at 350 hours
Reply With Quote
  #7  
Old 12-30-2017, 10:55 AM
Jetguy's Avatar
Jetguy Jetguy is offline
 
Join Date: Aug 2008
Location: Texas, Fort Worth
Posts: 1,231
Default

Quote:
Originally Posted by RFSchaller View Post
I epoxied mine.
Me Too! Still working great at 1050 hrs.
__________________
John
RV12 N1212K
Flying Since June 2010
1020 Hours as of 9/30/2017
Johnrv12@icloud.com
RV14 Wing, arrived and building at Rdog's new Hanger at 16X
S/N 140014
Reply With Quote
  #8  
Old 12-30-2017, 02:16 PM
John-G John-G is offline
 
Join Date: Jan 2012
Location: Northeast Ohio
Posts: 534
Default

Was surprised to find my bushing came off during the first week or so of testing ... I too had used blue Loctite as suggested in the plans.

Ordered a new bushing and installed it using a thin coating of Pro-Seal on it and made a thin bead on the backside with a syringe ... so far all is well. Actually found the one that flew off a week or so later ... seemingly unscathed. So now I have a spare.
__________________
John
www.dogaviation.com
RV-12 Wings, Empennage, Fuselage, Finishing, Avionics and Powerplant kits all completed
Now Flying!!

Dues paid until September 2019
Reply With Quote
  #9  
Old 02-17-2018, 01:00 AM
cyamaha2007 cyamaha2007 is offline
 
Join Date: Sep 2015
Location: Wright City, MO
Posts: 6
Default

Mine came off also, we used 243 to attach it the first time but now its epoxied and holding strong.

Last edited by cyamaha2007 : 02-17-2018 at 01:02 AM. Reason: ..
Reply With Quote
  #10  
Old 02-17-2018, 04:23 PM
Vakashi Vakashi is offline
 
Join Date: Feb 2018
Location: Auckland, New Zealand
Posts: 5
Default Loctite 7649/7471 primer/activator

1. According to the various downloadable Loctite user guides, most Loctite threadsealing products, such as Loctite 222 and 243, must be used with Loctite 7649 or Loctite 7471 primer/activator on inactive surfaces. The only active surfaces listed are brass, copper, bronze, or iron. Inactive surfaces are aluminium, stainless steel, etc., and obviously include our spinner and its bushing, both being non-metallic.
2. A primer/activator is also required when the thread gap to be sealed or locked is large, a relative dimension, but one that I think would apply to the bushing/spinner gap.
3. A primer/activator can be used when temperatures are very low to speed up the process.
Assuming that Loctite 243 has been used successfully to bond the bushing into the spinner, or it wouldn't be in the KAI, my question is, 'have any bushings fallen out despite using a primer/ activator?'
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 04:45 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.