Frank Langer
1984 Ericson 30+, Nanaimo, BC
Hi,
There have recently been several posts about corrosion in struts, with owners recommending addition of zincs on the strut.
I asked our boat yard staff about this, and they said that as long as zincs on the prop shaft are maintained its not necessary. Furthermore, they said that drilling a hole through the strut to bolt a zinc on either side unnecessarily weakens the strut.
It seems to me that the strut is separated from the prop shaft by the cutless bearing, though I guess there still could be corrosion from the stainless steel bolts holding the strut in place from inside the hull.
Can someone provide a convincing reason to either add a zinc to the strut, or not? Any wisdom on this is much appreciated.
Frank
There have recently been several posts about corrosion in struts, with owners recommending addition of zincs on the strut.
I asked our boat yard staff about this, and they said that as long as zincs on the prop shaft are maintained its not necessary. Furthermore, they said that drilling a hole through the strut to bolt a zinc on either side unnecessarily weakens the strut.
It seems to me that the strut is separated from the prop shaft by the cutless bearing, though I guess there still could be corrosion from the stainless steel bolts holding the strut in place from inside the hull.
Can someone provide a convincing reason to either add a zinc to the strut, or not? Any wisdom on this is much appreciated.
Frank