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Top cover fastener receptacles

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btucke73(at)yahoo.com
Guest

Posted: Wed Feb 15, 2006 9:03 am Post subject: Top cover fastener receptacles

Larry Mac,

 

      I remember that you used clip on receptacles for attaching your top cover over the header tank and instrument panel.  What part number did you use?  Did you use 10/32?  Also, how did you attach the 3 or 4 screws to the upper longeron?  

 

 R/

 

 Brandon Tucker

 

 Airframe complete

 Wiring complete

 Engine installed (but have to swap out the crank next week! )

 Painting fuselage

 

 Do not archive

 

		

---------------------------------

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Larry McFarland

Joined: 10 Jan 2006
Posts: 36
Location: East Moline, Illinois

Posted: Wed Feb 15, 2006 10:05 am Post subject: Top cover fastener receptacles

Brandon,

I used J-nut clip on styles 1 & 2, principally the style 2, which is a 

little longer on firewall and

instrument panel flange.  Style 1 on the sides.  Part numbers supporting 

6-32 and the appropriate

hole to edge distance.  Go to http://www.mcmaster.com to search window 

and see j-nuts, for machine

screws, shapes 1 and 2,  then select 6-32 and the edge distance.

On my canopy page you can see that I made and used a separate piece to 

go from the longeron to the edge

to minimize the forward top sides to a straight edge.  The forward top 

skin fits over the piece each side, the

j-nuts slip onto the edge which goes beneath the side pieces.  The short 

pieces are riveted with A5s to the

longeron, while two rivets secure each piece to the firewall flange.  

The entire pattern of the forward top skin

is 6-32 screws which are 3/8-inch long. 6-32 screws are more than 

adequate and hard to visually differentiate from

rivets at nearly any distance. See links below to understand side pieces,

http://www.macsmachine.com/images/canopy/full/flash&rubber.gif

http://www.macsmachine.com/images/canopy/full/uclips.gif

Removal begins with the canopy down, and the first 5 screws each side 

are removed, a patch of .025 aluminum

4 by 6-inches is slipped each side between the rubber and the top skin.  

The canopy is raised, arms covering the

space where the screws were. The remaining screws are removed, the gas 

cap if you have one is removed and the

forward top skin is lifted off.  The gas cap is reattached. The canopy 

can be left up or down at this point. The

aluminum patches are there to prevent the rubber on the arms from 

snagging the forward top skin after the screws

are removed.  Reattachment is the same in reverse.  About 20 minutes 

each way.

Definitely worth the effort!



Hope this helps, but if you have more questions please just ask.



Larry McFarland - 601HDS with installed XL forward tilt canopy per Zenith.

Brandon Tucker wrote:



 	  Quote: 	
		  



Larry Mac,

 

      I remember that you used clip on receptacles for attaching your top cover over the header tank and instrument panel.  What part number did you use?  Did you use 10/32?  Also, how did you attach the 3 or 4 screws to the upper longeron?  

 

 R/

 

 Brandon Tucker

 

 Airframe complete

 Wiring complete

 Engine installed (but have to swap out the crank next week! )

 Painting fuselage

 

 Do not archive

 

		

---------------------------------

- The Matronics Zenith-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Zenith-List

_________________
Larry McFarland - 601HDS - Stratus

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