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recommendations for repair

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Bill1200

Joined: 19 Oct 2008
Posts: 111
Location: medford oregon

Posted: Fri Apr 24, 2009 8:43 am Post subject: recommendations for repair

Front plug #1 cylinder blew out and broke heat shield (see attachment). Looking for recommendations on repair

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vectorwarbirds(at)AOL.COM
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Posted: Fri Apr 24, 2009 9:08 am Post subject: recommendations for repair

You can use a Heli Coil or Keenserts repair kit to fix this, others as well.  You must grease the tap flutes to catch the metal shaving as the tap cuts them, removing the tap several times to clean and regrease.  Then install the Heil Coil or Keensert for new threads.  If you bring the cylinder up of the exhaust stroke with the valve open you can then blow out any particles that might have fallen into the cylinder.  Done this many times in the past.

 

 Looks like it was either left loose or overtightened and pulled the threads out.  Most people should really use a torque wrench when installing spark plugs as they just don't have the feel from years of experience.

 

 Good luck!  Easy fix really.

 

 The Great Bunndini

 Vector Warbirds USA

 

   

 

   

 

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dougsappllc(at)gmail.com
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Posted: Fri Apr 24, 2009 9:18 am Post subject: recommendations for repair

Bill,

 Gary is correct on the cly fix.  I may have a used heat shield, will check later today.

  

 Doug

 On Fri, Apr 24, 2009 at 9:43 AM, Bill1200 <billdykes52(at)gmail.com (billdykes52(at)gmail.com)> wrote:

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		  --> Yak-List message posted by: "Bill1200" <billdykes52(at)gmail.com (billdykes52(at)gmail.com)>

 

Front plug #1 cylinder blew out and broke heat shield (see attachment). Looking for recommendations on repair





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Bill1200

Joined: 19 Oct 2008
Posts: 111
Location: medford oregon

Posted: Fri Apr 24, 2009 11:18 am Post subject: Re: recommendations for repair

Thanks guys. I should have been more specific. I want to repair the shield only. The spark plug socket seems fine. I reinstalled a new plug and it tightened fine, ran the engine up to full power plug stayed in fine.

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Bill1200

Joined: 19 Oct 2008
Posts: 111
Location: medford oregon

Posted: Fri Apr 24, 2009 11:20 am Post subject: Re: recommendations for repair

BTW, what is the torque for the plugs

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vectorwarbirds(at)aol.com
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Posted: Fri Apr 24, 2009 11:42 am Post subject: recommendations for repair

Plug torque:  216 to 240 inch pounds or 18-20 foot pounds. A small inch pound torque wrench is best, they sell a nice little one at Sears.  A small dab of anti-seize compound as well on the threads.

 

 Bunndini

 

   

 

   

 

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