What is the condition of your shaft zincs? Are you in fresh water or salt water & do you have the correct zincs for the type of water your boats in?
Sounds like you may need a galvanic isolator... Bob Bob Boyer S/V Rainy Days (1983 C&C Landfall 38 - Hull #230) Blog: dainyrays.blogspot.com Email: dainyr...@icloud.com Annapolis, MD > On Aug 8, 2018, at 8:10 PM, Persuasion37 via CnC-List <cnc-list@cnc-list.com> > wrote: > > > Hey folks > > I’m looking for some help. Persuasion is suffering from galvanic corrosion > or stray current corrosion or something. When I connect a multi meter, > ground to engine and positive lead to various place like keel bolt, mast and > through hull I see ~0.5V. Today I changed out the controller on the wind > generator, with the circuit breaker open I saw 2.4V on the battery leads. > Also the prop shaft was tarnished looking as well as the prop when I hauled > out to do the centre board. > > Before I call in the calvary can anyone advise me how to tackle this > methodically and what I should look for. > > > Thanks in advance > Mike > PERSUASION > C&C 37 (k/cb) shoal draft > Long Sault > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each and > every one is greatly appreciated. If you want to support the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray >
_______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
