I'm running a ground from firewall/forest of tabs to engine, is it necessary to ground the engine mount?
Step back and look at the bigger picture. What are you attempting to ground and why? Also to identify and understand any potential failure points.
I ran a ground from the alternator(s) (primary and backup)to the large bolt on the forest of tabs and from the engine as well. Almost everything in my RV-10 is grounded directly to the forest of tabs on one side of the firewall or the other. The lights in the wing are the only items I have grounded locally.
There are multiple ways to accomplish the grounds. The important thing is that everything is grounded. If the engine becomes isolated from ground of the aircraft, some ignitions and many sensors won't work as intended.
Step back and look at the bigger picture. What are you attempting to ground and why? Also to identify and understand any potential failure points.
I ran a ground from the alternator(s) (primary and backup)to the large bolt on the forest of tabs and from the engine as well. Almost everything in my RV-10 is grounded directly to the forest of tabs on one side of the firewall or the other. The lights in the wing are the only items I have grounded locally.
There are multiple ways to accomplish the grounds. The important thing is that everything is grounded. If the engine becomes isolated from ground of the aircraft, some ignitions and many sensors won't work as intended.
One other thing, does the 10's engine mount have a tab for a grounding strap? Neither of my engine mounts had such a tab.
Ok just to clarify some things. Your engine mounting frame is attached to the firewall at six points, making grounding contact at each mounting point. There are two straps that mount
from the engine to the engine mount, which grounds to the firewall. So is this a proper install or ?. Why the ground straps from the engine to the firewall or firewall forrest tabs. is this just different methods or Am I missing something.