I would like to tap a barbed fitting into the aluminum gearcase of my outboard motor. I cannot find stainless barbed fittings and I assume brass and aluminum touching under salt water is a no- no. If I tap the aluminum to take a stainless 1/4" bushing and then thread in a 1/8" barbed brass fitting will there still be corrosion problems. There are several zinc anodes on the motor and aluminum hull.
- posted
18 years ago