![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhq3lPBI2ll9Clni0BzZBRNvTDegMu3lDRUBW6uBajXTu-3PtMxQ1ZVkJdlepXNlNE06a06sgu_kKLssDni0OYqG3Lza55ncTrcfln1SBlrDe-2Bk_0DDcvvXl2jA2bHI4mTwH5C7Myf04/s320/PropNut.jpg)
Cape Dory 28' cruisers require only one sacrificial zinc anode to protect the underwater metals from corrosion. It's a "perry nut" type, on the end of the prop shaft. Last year's zinc was about 1/2 gone, so it needed to be replaced for the start of the season.
Our boat's shaft is 1 1/2" diameter, which takes a prop nut zinc size "F". I found it in a few places online, including Hamilton Marine and BoatZincs.com. The zinc is relatively inexpensive, at around $15. Generally, only the zinc needs replacing, not the entire bronze prop nut, which is much more costly at about $90.
1 comment:
TY !!
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