LML gang,

We have a standby alternator (B&C SD-20S) mounted on the accessory pad of our IO-550N engine.  It’s near the top center of the firewall near where we’d like to run a bunch of wires through the firewall.

Has anyone with this configuration and wiring running nearby had any problems with electromagnetic interference when the alternator is running?  How much do we need to avoid running wires near it? 

Thanks,

Valin Thorn

Legacy Project

Boulder, Colorado