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Ground block

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naumuk(at)windstream.net
Guest

Posted: Tue Jan 20, 2009 7:22 pm Post subject: Ground block

All-

     B+C recommends installing the  panel ground block on the firewall, but I've got the header tank in the  way.

     Is mounting the ground block  near the panel, then running a braided ground cable to one of the motor mounts a  workable alternative?

 Bill Naumuk

Townville, Pa.

HDS 601MG/Corvair  95%

   [quote][b]

Gig Giacona

Joined: 10 Jan 2006
Posts: 1416
Location: El Dorado Arkansas USA

Posted: Wed Jan 21, 2009 6:34 am Post subject: Re: Ground block

I've never looked behind the panel on a 601 with a header tank. But, could you not move the ground block closer to the floor?

_________________
W.R. "Gig" Giacona
601XL Under Construction
See my progress at www.peoamerica.net/N601WR

Rhino

Joined: 01 Aug 2007
Posts: 56
Location: Xenia, Ohio

Posted: Wed Jan 21, 2009 1:41 pm Post subject: Re: Ground block

 	  naumuk(at)windstream.net wrote: 	
		  B+C recommends installing the  panel ground block on the firewall, but I've got the header tank in the  way.

     Is mounting the ground block  near the panel, then running a braided ground cable to one of the motor mounts a  workable alternative? 	


Yes. From Zenith's web site:



 	  Quote: 	
		  Another method of grounding is to use a common grounding bus bar. This bar can be located under the instrument panel and used to connect all ground wires from equipment throughout the aircraft. This is referred to as a central grounding point. The grounding bus bar is grounded to the engine of the aircraft. In this case two wires must be run to each piece of equipment - the power wire and the ground wire. This type of grounding is more common in composite and wood aircraft. Both of these aircraft require some form of ground other than their airframe. Wood and composite material do not conduct electricity. 	




http://www.zenithair.com/kit-data/ra/electric2.html

_________________
Bob Simmons
CH 750
N750TN (reserved)

bryanmmartin

Joined: 10 Jan 2006
Posts: 1018

Posted: Wed Jan 21, 2009 2:01 pm Post subject: Ground block

I just ran a cable from my engine block to the brass bolt on my  

grounding block. My battery is behind the passenger seat, so I also  

ran the battery negative cable to that bolt. That way there's fewer  

connections to maintain. I have my grounding block mounted on the  

firewall, but there's no reason it can't be mounted elsewhere as long  

as everything gets bonded to that point.



If your battery is mounted ahead of the firewall, it might be better  

to run the negative cable directly to the engine. Then you can run a  

much smaller cable from the engine or battery to the grounding block.



On Jan 20, 2009, at 10:21 PM, Bill Naumuk wrote:



 	  Quote: 	
		   All-

     B+C recommends installing the panel ground block on the  

 firewall, but I've got the header tank in the way.

     Is mounting the ground block near the panel, then running a  

 braided ground cable to one of the motor mounts a workable  

 alternative?




	




-- 

Bryan Martin

N61BM, CH 601 XL,

RAM Subaru, Stratus redrive.

do not archive.

_________________
--
Bryan Martin
N61BM, CH 601 XL, Stratus Subaru.
do not archive.

jlatimer1(at)cox.net
Guest

Posted: Wed Jan 21, 2009 2:36 pm Post subject: Ground block

Bill,

Here are some photos of what I'm doing with the ground block and header 

tank.

Jerry

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naumuk(at)windstream.net
Guest

Posted: Wed Jan 21, 2009 3:38 pm Post subject: Ground block

Gig-

    I could, but then I'd have all my ground wires out in the open and right 

at foot level.

                                                                             

            Bill



---

naumuk(at)windstream.net
Guest

Posted: Wed Jan 21, 2009 3:39 pm Post subject: Ground block

Bob-

    I love it when someone has an answer I want to hear!

                                                                    Bill

---

naumuk(at)windstream.net
Guest

Posted: Wed Jan 21, 2009 4:02 pm Post subject: Ground block

Jerry-

    That's exactly what I was going to do originally. What really got me 

thinking was watching the HomebuiltHelp Glass Panel DVD I got for my last 

Matronics donation.

    Mark used a prebuilt terminal and switch unit for all his connections, 

and it's mounted in the panel. The whole DVD is shot with the panel on the 

bench, so it's not clear if additional grounding is necessary. It just makes 

sense to ground it to the engine somehow.

    I just don't like the idea of having all your ground wires out in the 

open, ready to get snagged by a passenger. I might know exactly how to 

weasel my way into the cockpit without doing any damage, but just about any 

flying builder I've talked to can relate to the damage a newbie can do.

                                                                Bill

---

jlatimer1(at)cox.net
Guest

Posted: Wed Jan 21, 2009 5:52 pm Post subject: Ground block

I was worried about the same thing but I've tried to kick the firewall 

while sitting in the plane and have not been able to.  My legs won't 

reach and I'm 6 ft tall.  So I went ahead and installed it this way.  I 

also thought about the method in your previous method but decided to do 

it this way.  After all these are experimentals and we are learninig 

righte.

Jerry

On Wed, Jan 21, 2009 at 6:11 PM , Bill Naumuk wrote:



 	  Quote: 	
		   

 <naumuk(at)windstream.net>



 Jerry-

    That's exactly what I was going to do originally. What really got 

 me thinking was watching the HomebuiltHelp Glass Panel DVD I got for 

 my last Matronics donation.

naumuk(at)windstream.net
Guest

Posted: Thu Jan 22, 2009 5:56 pm Post subject: Ground block

Jerry-

    Everything's a tradeoff. I guarantee you'll find something you don't 

like about the way you set your project up, and I'll do the same. Oh, well, 

we'll get it right next time!

                                                            Bill

                                  do not archive

---

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