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Date:  5-11-2012
Number of Hours:  2.50
Manual Reference:  F17
Brief Description:  Deburr and rivet upper firewall, box and strap.

Tonight I used a small grinder stone to remove the burrs on the firewall. The 11/32 holes I drilled in the stainless steel firewall to accommodate the 1/4 turn fasteners had large burrs.

I step drilled the holes using 5 different bits with lube and I thought the process was going well, but found out after, that the holes were actually melting and pushing out on the back side. I am also hoping this assembly will fit properly because there is a slight bow. I previously read were other builders have had the same problem and I was still unable to avoid it myself.

The assembly is now complete along with several smears of my DNA. I hope this is the last of the stainless steel sheet I'll have to work with....
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Upper firewall assembly.

Upper firewall assembly.

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Dimpled holes for the 1/4 turn Southco fastener.

Dimpled holes for the 1/4 turn Southco fastener.

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