Rick_A
Well Known Member
I feel really dumb but I can't seem to figure out what size bolt I need. There is a threaded hole on the rear of the engine case that I want to use for the ground connection. It's sorta behind the Dip stick tube near the prop oil line. It's an ECI O-360 case.
It's appears to be a 5/16th bolt and I've tried both 18 & 24 tpi bolts and can't get either one started.
Anyone know what size bolt to use?
It's appears to be a 5/16th bolt and I've tried both 18 & 24 tpi bolts and can't get either one started.
Anyone know what size bolt to use?