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Exhaust stud thread lock

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pchristensen10(at)austin.
Guest

Posted: Sun Feb 21, 2010 6:32 am Post subject: Exhaust stud thread lock

I removed an exhaust manifold on my 912 and had the  stud come out instead of the nut come off.  Should I use Loctite 270 or  some other thread lock to reinstall the stud?

  

 Pete

 Kitfox III, 912

 Austin, TX

  

  

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Dick Maddux

Joined: 24 Jun 2008
Posts: 516
Location: Milton, Fl

Posted: Mon Feb 22, 2010 5:22 am Post subject: Exhaust stud thread lock

Pete,

  I just went thru the same thing and 4 of my studs came out. I ordered new studs and nuts from LEAF. The studs are supposed to be put back with Locktite 2701 and torqued to 70 inch lbs( I believe) Check the torque as specified in the parts manual. 

  I called Fastenall,our local supplier of Locktite,and he did not have the 2701. He called Locktite and found out the 2701 was a special mixture and was very expensive. The Locktite guy told him that 271 was very close chemically so that is what I bought. Theoretically you are supposed to replace the exhaust nuts when you remove them. My exhaust nuts were stuck to the stud as yours were and I had thought about just applying the Locktite and screwing them back in but they were pretty grody so I decided to do the right thing with new studs and exhaust nuts. Be sure you follow the Rotax SB on torque's and exhaust flange clearances. I don't recall the number but you will find it (at) [url=rotax-owner.com]rotax-owner.com[/url]

                                                  Dick Maddux

                                                  Fox 4

                                                  912UL

                                                  Milton,Fl

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