Battery to Firewall Ground

[jmpratt]

I can't find guidance in the RV-6 build manual on how to ground the negative battery cable to the firewall. Am I missing it somewhere? What did you do?

-Jason

 

[Av8torTom]

On my 9A, I believe I mounted a nutplate on the cockpit side of the firewall, then ran a long bolt thru it to attach the engine ground and the battery negative lead, then on the other side attached to that long bolt a 10 gauge wire to my instrument grounding block. Make sense?

 

[jmpratt]

On my 9A, I believe I mounted a nutplate on the cockpit side of the firewall, then ran a long bolt thru it to attach the engine ground and the battery negative lead, then on the other side attached to that long bolt a 10 gauge wire to my instrument grounding block. Make sense?

Yes, that makes sense. What size? 1/4"?

 

[bjdecker]

Not 1/4". See OP-12. Attached for reference -- Note "Detail F"

 

[Av8torTom]

Yes, that makes sense. What size? 1/4"?

I believe I used an AN-5, but I don't know why an AN-4 wouldn't be just fine. The neg lead will be making contact with the firewall.

 

[jmpratt]

Not 1/4". See OP-12. Attached for reference -- Note "Detail F"

Thanks! That's what I was looking for!