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CJ canopy seal

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wlannon(at)shaw.ca
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Posted: Thu Oct 10, 2013 6:46 pm Post subject: CJ canopy seal

Hi Keith;



The "backing plate" holds the seal in place.  The rivets attach both to the 

canopy bow frame that covers the tubing section.  The rivets need to be "A" 

not "AD".



Walt



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keithmckinley

Joined: 11 Aug 2008
Posts: 434

Posted: Sun Oct 13, 2013 6:46 pm Post subject: Re: CJ canopy seal

Thanks Walt, 



It's very hard to see looking directly at the area but I do see what you mean looking at the detail in volume 1. My though is that without removing the front windscreen or center section (for the rear seal). I'd have to use a cherrymax rivet to reinstall?



My seals are dried out and rock hard.



Keith

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wlannon(at)shaw.ca
Guest

Posted: Sun Oct 13, 2013 9:21 pm Post subject: CJ canopy seal

Hi Keith;



I gave you a bit of a bum steer by referring to "tubing sections".   Those 

are only in the sliders, not the fixed sections.  But I think you found my 

error OK.



Rather than tubing the fixed section bows are formed aluminum alloy frames 

riveted to the upper longerons.   The part that the seal and retaining strip 

are riveted to is the external surround that holds the Plexiglas in place 

and is bolted to the frame with flush head screws.   I think you will have 

to remove this to replace the seal.   There is very little room between this 

and the aft face of the frame making it very difficult to drill out the 

existing rivets.   Cherry Max rivets will likely not be an option as there 

is not enough space for the rivet stem.   If you are able to get the old 

rivets out without damaging the very soft retaining strip it may be possible 

to use short 3/32" POP rivets.



However,  you can remove the surround without removing the windshield or 

center section glass though you would have to re-seal the glass on 

re-installation.



Sorry for the misinformation.



Walt



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keithmckinley

Joined: 11 Aug 2008
Posts: 434

Posted: Mon Oct 14, 2013 4:49 am Post subject: Re: CJ canopy seal

I think I know what you mean Walt and I guess my issue would be removing all the exterior painted screws without chipping everything (exacto knife!) Lots of work. It's amazing to me that when that glass was replaced that old 5 dollar seal went back in! I'm going to drill out one rivet and see what I find on the clearance.



Thanks!



Keith

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jackpot

Joined: 13 Jul 2010
Posts: 65
Location: Las Vegas, Nevada

Posted: Mon Oct 14, 2013 7:04 am Post subject: CJ canopy seal

I installed all the new canopy glass with stainless steel counter sunk Philips head screws with fiber self locking nuts. Works well, can't remember if I used metric or SAE screws.  Tried to forget about doing it after it was done.  Tedious job.  Gary G.  CJ. N22YK

PS They flush in well with the canopy frame. 



Sent from my iPhone



[quote] On Oct 13, 2013, at 22:08, "Walter Lannon" <wlannon(at)shaw.ca> wrote:

 

 

 

 Hi Keith;

 

 I gave you a bit of a bum steer by referring to "tubing sections".   Those are only in the sliders, not the fixed sections.  But I think you found my error OK.

 

 Rather than tubing the fixed section bows are formed aluminum alloy frames riveted to the upper longerons.   The part that the seal and retaining strip are riveted to is the external surround that holds the Plexiglas in place and is bolted to the frame with flush head screws.   I think you will have to remove this to replace the seal.   There is very little room between this and the aft face of the frame making it very difficult to drill out the existing rivets.   Cherry Max rivets will likely not be an option as there is not enough space for the rivet stem.   If you are able to get the old rivets out without damaging the very soft retaining strip it may be possible to use short 3/32" POP rivets.

 

 However,  you can remove the surround without removing the windshield or center section glass though you would have to re-seal the glass on re-installation.

 

 Sorry for the misinformation.

 

 Walt

 

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