VansAirForceForums  
Home > VansAirForceForums

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

- Today's Posts | Insert Pics

  #21  
Old 05-14-2019, 01:56 PM
Kalibr Kalibr is offline
 
Join Date: Aug 2015
Location: St John, Steamboat Springs, planet Earth generally
Posts: 83
Default

I know it’s an older thread, but I want to share my experience in case someone trying to pick the collective brain on this issue, like I did.

I am installing a spacer at the intake and needed to replace the studs in the cold sump. The instructions for installing the new studs call for applying a high temperature “permanent/red” thread locker. I suspect so is the case with other studs on the engine that go into an aluminum body. So, I assumed that the original studs that I needed to remove were installed with a “permanent” thread locker. Now, any permanent/red thread locker that I know of requires heat for removal. I guess, with enough brute force, the fastener would come out without heat, but I was afraid that especially with aluminum, brute force might damage the threads in the sump.

To cut to the chase, I carefully applied heat with a small butane torch (just enough for the oily stud to start smoking oil), keeping the flame away from the sump and the studs came right out with the double nut method. I’d be apprehensive trying to force the studs out of aluminum substrate applying much more torque than what is specified for torquing the stud into the hole or bolting a nut onto the stud — that out of fear of stripping/damaging the threads.

I did try first removing a stud without heat and it wouldn’t bulge with a reasonable amount of torque.
__________________
Building a Panther, but lurking here, like many others
Reply With Quote
  #22  
Old 05-14-2019, 05:17 PM
pa38112 pa38112 is offline
 
Join Date: Mar 2008
Location: Clarksboro, NJ
Posts: 684
Default

https://www.amazon.com/ARES-70016-Da...s%2C694&sr=8-3

Worth every penny.
__________________
http://aprs.fi/N153MC
2004 RV6A Flying
2002 RV6A Flying
1978 PA38-112
Reply With Quote
  #23  
Old 05-14-2019, 10:12 PM
Kalibr Kalibr is offline
 
Join Date: Aug 2015
Location: St John, Steamboat Springs, planet Earth generally
Posts: 83
Default

Perhaps. But a point I was trying to make was that as far as removing studs from aluminum or magnesium alloys are concerned, brute force with or without a stud remover/extractor might not be your friend. What’s likely holding the stud stuck is a threadlocker, which needs to be released with heat.
__________________
Building a Panther, but lurking here, like many others
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 02:07 PM.


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.