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Stripped Thread Question?

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jeffrey-j-paris(at)excite
Guest

Posted: Tue Nov 27, 2007 3:28 pm Post subject: Stripped Thread Question?

Hi Listers,



I was doing my annual condition inspection on the Zenith CH601XL/ JABIRU 3300 this past weekend. (182 total hours engine and airframe) While I was putting one of the valve covers back on the engine I noticed a little bit of an aluminium burr in one of the bolt holes for the 5/8 X 1/4 UNC Socket Head Cap Screws Jab # PH72624. I ended up pulling quite a long "curly-Q" piece of the burr out of the hole. For the most part it is stripped. 



With that in mind, What would be the best way to repair the stripped hole? I have been looking at18-8 Stainless Steel Helical Inserts to make the repair.



Or do you re-tap the hole to the next larger size bolt? Any other Ideas? Can't seem to find anything in any of the "FAA Standard Practices" books on what to do.



Let us know at your earliest convenience. Thank you for your time and consideration.



Jeff and Peter Paris 

N196ZP

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jetboy

Joined: 22 Jul 2006
Posts: 233

Posted: Tue Nov 27, 2007 11:46 pm Post subject: Re: Stripped Thread Question?

Jeff,

       I would use Helicoil or similar inserts. The ones I used for an alloy engine head came with the drill, tap and inserting tool. I'm contemplating having to do this for the spark plug threads one day - surprised they are not already fitted because my Continental 0-200 (SA) heads had them from new and the NGK plugs seem to mess the threads on the way out as if they have too much thread in the cyl.



Ralph

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Ralph - CH701 / 2200a

jeffrey-j-paris(at)excite
Guest

Posted: Wed Nov 28, 2007 4:18 pm Post subject: Stripped Thread Question?

Thanks Ralph!



JJP





 --- On Wed 11/28, jetboy < sanson.r(at)xtra.co.nz > wrote:

From: jetboy [mailto: sanson.r(at)xtra.co.nz]

To: jabiruengine-list(at)matronics.com

Date: Tue, 27 Nov 2007 23:46:58 -0800

Subject: Re: Stripped Thread Question?



 



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