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  #11  
Old 08-31-2006, 12:57 PM
f1rocket's Avatar
f1rocket f1rocket is offline
 
Join Date: Jan 2005
Location: Martinsville, IN
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Different strokes for different folks, but I would not mount ground tabs on the engine side of the firewall. For me, it gets too messy and there's always oil and other liquids running around in there. I just ran ground wires in with my bundle, through the firewall, to the ground tabs mounted on the cockpit side. Multiple 22AWG and 20AWG wires will fit into an 18AWG crimp terminal.
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Last edited by f1rocket : 08-31-2006 at 01:00 PM.
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  #12  
Old 09-01-2006, 11:45 AM
Ted Johns Ted Johns is offline
 
Join Date: Feb 2006
Location: Sherwood, Oregon
Posts: 236
Default I Wouldn't Do This!

Aluminum oxide is an excellent insulator. It is also the surface condition of any aluminum sheet you might happen to pick up. IF you sanded the oxide layer off, quickly smeared dielectric grease on it, and then riveted the tabs on with enough pressure to form a gas tight seal, it might work. Will the tabs remain gas tight clamped to the aluminum after lots of connector removal and thermal cycles???

Brass (or copper) sheet is cheap. Why fight mother nature (physics)?
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  #13  
Old 09-08-2006, 01:38 AM
Sprig Sprig is offline
 
Join Date: Sep 2006
Posts: 15
Default Is this ground block OK?

NO!

This ground block is NOT OK.

You may as well be wiring a '64 Volkswagon Beatle with that technology.

(and, NO, that technology wasn't very reliable, on the GROUND .... )

Sprig
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  #14  
Old 09-08-2006, 10:03 AM
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Davepar Davepar is offline
 
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Location: Seattle, WA
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I'm finally caving on my ground block. I really think it would be fine, but I'm going to order some brass sheet and use that in place of the aluminum. It would be a major pain to replace it if there ever was any problems.

Your wiring job is driving me nuts Randy. I've been trying to route my wires carefully, but I can't see how to make all the bundles nice and neat like you've done it. At least within this century.
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  #15  
Old 09-08-2006, 12:28 PM
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f1rocket f1rocket is offline
 
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Location: Martinsville, IN
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Thanks for the compliment Dave, but you can do it with a little forethought. Once wire at a time and one step at a time. I use plastic ty-wraps to create temporary bundles and re-bundle it each time I add some wires. When I think I'm done, I add the clamps and wax wire ties to finish it up.
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Randy Pflanzer
Greenwood, IN

www.pflanzer-aviation.com
Paid through 2043!
Lund fishing Boat, 2017, GONE FISHING
RV-12 - Completed 2014, Sold
427 Shelby Cobra - Completed 2012, Sold
F1 EVO - partially completed, Sold
F1 Rocket - Completed 2005, Sold
RV-7A - Partially completed, Sold
RV-6 - Completed 2000, Sold
Long-EZ - Completed 1987, Sold

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  #16  
Old 09-08-2006, 01:19 PM
jcoloccia jcoloccia is offline
 
Join Date: Sep 2005
Posts: 1,110
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Rich and Cam are dead on. You can get sheets of copper and brass (depending on your preference, I guess) at the local hobby shop. It's pretty cheap and it comes precut the perfect width for a ground block.
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