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Stud removal question

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rleffler

Joined: 05 Nov 2006
Posts: 680

Posted: Sat Nov 28, 2015 11:50 am Post subject: Stud removal question

I was removing some studs today.  I got them all out but one.   Unfortunately, one broke off about 3/8" to 1/2" from the engine block.   The stud is on the oil filter adapter,  it I don't think that's important.



I don't have any experience here.   I'm looking for assistance to understand what options may be available to me.  I'm hoping I can find a solution other than drilling it out.



Thanks,



Bob



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Bob Leffler
N410BL - Phase I
http://mykitlog.com/rleffler

Kellym

Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ

Posted: Sat Nov 28, 2015 12:59 pm Post subject: Stud removal question

If you have enough protruding, double nut stud, then back it out. Some 

heat likely will help, but don't over do it. If there isn't enough left 

for that, there are extractors with left hand threads that will grab and 

start turning stud when you tighten them on. If nothing is protruding 

you are pretty much left with drilling enough to get an extractor into 

the resulting hole.

As to your re-assembly, Rapco makes a crowfoot wrench specifically for 

the vacuum pump pad. It is the solution for the most difficult nut.



On 11/28/2015 12:46 PM, Bob Leffler wrote:

 	  Quote: 	
		   



 I was removing some studs today.  I got them all out but one.   Unfortunately, one broke off about 3/8" to 1/2" from the engine block.   The stud is on the oil filter adapter,  it I don't think that's important.



 I don't have any experience here.   I'm looking for assistance to understand what options may be available to me.  I'm hoping I can find a solution other than drilling it out.



 Thanks,



 Bob



 Sent from my iPad

- 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:

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_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
KCHD

saolesen(at)sirentel.net
Guest

Posted: Sat Nov 28, 2015 1:53 pm Post subject: stud removal question

Check out this website for a how to on broken stud removal.



diymotofix.com    Click on "Blog."  The article is on the right side under Categories.  The article is "Fixing Broken Bolts."



Be sure to wish the author a Happy Birthday!  I have very good knowledge that he is 27 today.



Sheldon Olesen



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bob88

Joined: 24 Feb 2013
Posts: 99

Posted: Mon Nov 30, 2015 9:41 pm Post subject: Re: Stud removal question

I had the same problem, defied all recommended techniques. I finally drilled out the old broken off stud.  I then tapped oversize to 5/16 and used a bolt. A more elegant solution might be a helicoil.

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