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gill question on CJ6 (yes I searched the archive)

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skidmk

Joined: 19 Nov 2007
Posts: 171
Location: Ottawa, Ontario

Posted: Fri Mar 19, 2010 4:25 pm Post subject: gill question on CJ6 (yes I searched the archive)

Hi all,



removed the complete gill system of CJ to replace the "weatherstrip".   The vanes were never detached from the center ring, but were removed from the outer ring (to enable riviting for weatherstrip) by removing the nut, and then the long "bolt".



reinstalled today,, and suddenly they are very hard to open and close.  The nuts were tightened just enough to prevent up and down movement.



any tips?  ideas?  



thanks



Mike

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Mike "Skidmk" Bourget
Ottawa, Ontario

cjpilot710(at)aol.com
Guest

Posted: Fri Mar 19, 2010 8:54 pm Post subject: gill question on CJ6 (yes I searched the archive)

It is very important that the outer ring is not warped.   The stand offs need to be all the correct length so that the outer ring is not twisted or bowed.  What happens is that the inter ring that moves the vanes is working against the outer ring.  I just replaced my gills vanes and had this very problem.  It turned out that one of the cylinder stand offs, was about 3/8" short.  I sighted from the side and could just make out a slight bow in the out ring.  Once that was fixed, it work smooth as silk.

    

   Jim "Pappy" Goolsby

 

 

   

 

 

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skidmk

Joined: 19 Nov 2007
Posts: 171
Location: Ottawa, Ontario

Posted: Sat Mar 20, 2010 3:43 am Post subject: Re: gill question on CJ6 (yes I searched the archive)

thanks... that was an aha moment... I do recall seeing a "warp" yesterday.



Mike

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Mike "Skidmk" Bourget
Ottawa, Ontario

viperdoc(at)mindspring.co
Guest

Posted: Sun Mar 21, 2010 7:08 am Post subject: gill question on CJ6 (yes I searched the archive)

Yep, had to replace the 50’s gills after a bird strike. The same thing. Just locked them in the open position and safety wired the inner ring lever. Have not had time to tweak it because of other time consuming issues with my office. Will get back to it this spring. They do not move well when the outer ring is warped.  

Even flying in this past cold ass winter once cylinder head temps were up did not need them.   

Doc  

     

From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of cjpilot710(at)aol.com

 Sent: Friday, March 19, 2010 11:53 PM

 To: yak-list(at)matronics.com

 Subject: Re: gill question on CJ6 (yes I searched the archive)  

  

     

It is very important that the outer ring is not warped.   The stand offs need to be all the correct length so that the outer ring is not twisted or bowed.  What happens is that the inter ring that moves the vanes is working against the outer ring.  I just replaced my gills vanes and had this very problem.  It turned out that one of the cylinder stand offs, was about 3/8" short.  I sighted from the side and could just make out a slight bow in the out ring.  Once that was fixed, it work smooth as silk.  

    

   

    

Jim "Pappy" Goolsby  

  

     

--

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skidmk

Joined: 19 Nov 2007
Posts: 171
Location: Ottawa, Ontario

Posted: Sun Mar 21, 2010 12:43 pm Post subject: Re: gill question on CJ6 (yes I searched the archive)

another potential gotcha.  I was looking though the parts manual for a hint as to the problem..... 3 of the vanes have shorter bolts than the others... this may be causing its own set of issues as well.



Back to the hangar tear it apart and go from there.



Mike

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Mike "Skidmk" Bourget
Ottawa, Ontario

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