naumuk(at)alltel.net
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 Posted: Sat May 05, 2007 7:41 am Post subject: Firewall centerline final |
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All-
Putting together the best of the list's comments and ideas, my plan of action is:
1. Ignore the tooling holes as location references.
2. Concentrate on the outside contact edges of the firewall and the flat bottom flange. Think about it. Eventually, those will dictate the perimeter of the fuse and consequently the centerline. Dr. "Painless" Dred is right on going to the widest point in the X axis.
So, what I'm going to do is box the firewall in with 2x4's screwed down to my bench. Start by using the flat bottom flange as the primary origin. Next I'll square one of the perpendicular pieces, then the other, contacting the widest point in the X axis. Finally, a short piece at the top of the firewall to keep everything from moving while I make my Sharpie marks.
I'm going out to the garanger and start laying things out. If someone comes up with a flaw in my logic I'll be back in to check comments before drilling metal.
Bill Naumuk
HDS Fuse/Corvair
Townville, Pa
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