[C320-list] Autoprop Zinc

[Larry Frank]

For those with Autoprops....

 

For years I would get two years out of an Autoprop zinc.  In fact, I
replaced them as a preventative maintenance item when I had the bottom
repainted.  They hardly showed any corrosion.

 

WindSwept stays in the water year around.

 

The last few zincs have not lasted very long.  About three months.

 

I don't think it is a stray current problem because the zincs on the strut
and the shaft aren't corroding at a quicker rate and I did a voltage survey
following the instructions that came with my corrosion test meter which came
up negative for stray current.

 

I have purchased the zincs from the Autoprop people - AB Marine.

 

Has anyone else noticed a sharply reduced zinc life?  I am wondering if the
zincs themselves are inferior.

 

Larry

WindSwept C320 #246