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grounding strap

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bob88

Joined: 24 Feb 2013
Posts: 99

Posted: Sat Jun 13, 2015 8:38 am Post subject: grounding strap

Where is best to attach the engine to airframe grounding strap. I get that engine end can be to a case bolt. Where is best airframe grounding point (should be two actually)?

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jesse(at)saintaviation.co
Guest

Posted: Sat Jun 13, 2015 10:15 am Post subject: grounding strap

There are tags on the engine mount for hat, but make sure you remove the powder coating. 



Jesse Saint

Saint Aviation, Inc.

352-427-0285

jesse(at)saintaviation.com



Sent from my iPad



 	  Quote: 	
		   On Jun 13, 2015, at 12:38 PM, bob88 <marty.crooks(at)comcast.net> wrote:

 

 

 

 Where is best to attach the engine to airframe grounding strap. I get that engine end can be to a case bolt. Where is best airframe grounding point (should be two actually)?

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=443456#443456

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carl.froehlich(at)verizon
Guest

Posted: Sat Jun 13, 2015 11:52 am Post subject: grounding strap

Ground the engine to the grounding lug on the starter using the same gauge

wire you have running to the starter.  The starter is the highest current

draw so it needs the best ground.  I used #2 welding wire to the starter

solenoid on the firewall, then #4 wire for both the starter solenoid to

starter run and firewall ground lug to starter ground lug run.  Both starter

and alternator wires run through a piece of fire sleeve under the left

cylinder bank.



You should create a primary ground lug on the firewall.  Location as you see

fit but having it in the upper half on the left side works.  A ground block

like this provides a heavy lug for a good ground for both sides of the

firewall and a bunch of ground tabs for the cabin side of the firewall:

http://www.aircraftspruce.com/catalog/elpages/elecsystem07-03463-6.php?click

key=97423 



Carl



--

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rleffler

Joined: 05 Nov 2006
Posts: 680

Posted: Sat Jun 13, 2015 11:57 am Post subject: grounding strap

My forest of trees tabs has a bolt going through the firewall.   My engine ground goes there as well as ground to the engine mount.   All my grounds terminate there.



Bob



Sent from my iPad



 	  Quote: 	
		   On Jun 13, 2015, at 12:38 PM, bob88 <marty.crooks(at)comcast.net> wrote:

 

 

 

 Where is best to attach the engine to airframe grounding strap. I get that engine end can be to a case bolt. Where is best airframe grounding point (should be two actually)?

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=443456#443456

- The Matronics RV10-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?RV10-List

_________________
Bob Leffler
N410BL - Phase I
http://mykitlog.com/rleffler

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