zinc

I was replacing the Zinc's on my 2005 420 sundancer and one of the bolts on the transom zinc snapped flush with the transom. I thought OMG now I have to drill it out and get an ez-out. Got the equipment and started drilling and about 1/4" deep in disappears. Yep gone. Turns out it is a bolt that...

For the last 20 years I've used Zincs on all my boats which are kept in the Barnegat Bay. The boat stay in the water from April to November and is hooked up to shore power. Now I'm being told to use Aluminum. What is going to protect the best.

Okay, something I have been wondering about with exhaust manifolds regarding corrosion: On every exhaust manifold, there are large hex bolts/screws/nuts on the top and/or sides of them of them. Presumably, these lead to the cooling jacket of the exhaust, and are available for use as ports to...