Forums › General Discussion › Anodes

Viewing 7 reply threads
  • Author
    Posts
    • #68565
      Jack Clarke
      Participant

      Hi everyone,

      I need some pointers in what anodes to put on the shaft etc. for salt
      water. I am on Lake Ontario and in the next two to three weeks will be
      going out the St. Lawrence, through the Maritimes, New England and points
      south after that.
      I have a Max prop and it has a cone shaped anode on the hub. How many on
      the shaft?

      Thanks

      Jack
      Xanadu
      _______________________________________________
      maillist mailing list

      https://pearson424.org/mailman/listinfo/maillist_pearson424.org

      Post generated from Pearson424 Forum using Mail2Forum

    • #78541
      Hull152_Patrick
      Spectator

      I have two zincs on my shaft and no prop zinc. I think you could put as
      many as you want, but two is probably more than enough, but better than one
      in case one fails.

      -patrick

      —
      s/v Deep Playa | Pearson 424 Hull #152 | http://www.DeepPlaya.com |
      @DeepPlaya |
      W7PEA

      On Thu, May 17, 2012 at 10:12 AM, Jack P Clarke wrote:

      Hi everyone,

      I need some pointers in what anodes to put on the shaft etc. for salt
      water. I am on Lake Ontario and in the next two to three weeks will be
      going out the St. Lawrence, through the Maritimes, New England and points
      south after that.
      I have a Max prop and it has a cone shaped anode on the hub. How many on
      the shaft?

      Thanks

      Jack
      Xanadu
      _______________________________________________
      maillist mailing list

      https://pearson424.org/mailman/listinfo/maillist_pearson424.org

      _______________________________________________
      maillist mailing list

      https://pearson424.org/mailman/listinfo/maillist_pearson424.org

      Post generated from Pearson424 Forum using Mail2Forum

      Owners no more...
      Thanks Dawn and Patrick!

    • #78542
      madsailor
      Moderator

      Two 1-1/2 inch zincs.

      I’m not being terse. This is from my mobile.
      On May 17, 2012 11:13 AM, “Jack P Clarke” wrote:

      Hi everyone,

      I need some pointers in what anodes to put on the shaft etc. for salt
      water. I am on Lake Ontario and in the next two to three weeks will be
      going out the St. Lawrence, through the Maritimes, New England and points
      south after that.
      I have a Max prop and it has a cone shaped anode on the hub. How many on
      the shaft?

      Thanks

      Jack
      Xanadu
      _______________________________________________
      maillist mailing list

      https://pearson424.org/mailman/listinfo/maillist_pearson424.org

      _______________________________________________
      maillist mailing list

      https://pearson424.org/mailman/listinfo/maillist_pearson424.org

      Post generated from Pearson424 Forum using Mail2Forum

    • #78543
      kalinowski
      Participant

      Two does the job in Hawai’i.

      Dan Kalinowski
      Jolly Lama #135
      Ko Olina, O’ahu

    • #78544
      petedd
      Participant

      I run two 1.5″ eggs on the shaft in front of the strut. This way if one
      comes loose, maybe you notice before the other one wears out as well.

      On 5/17/2012 9:12 AM, Jack P Clarke wrote:

      Hi everyone,

      I need some pointers in what anodes to put on the shaft etc. for salt
      water. I am on Lake Ontario and in the next two to three weeks will be
      going out the St. Lawrence, through the Maritimes, New England and points
      south after that.
      I have a Max prop and it has a cone shaped anode on the hub. How many on
      the shaft?

      Thanks

      Jack
      Xanadu
      _______________________________________________
      maillist mailing list

      https://pearson424.org/mailman/listinfo/maillist_pearson424.org

      _______________________________________________
      maillist mailing list

      https://pearson424.org/mailman/listinfo/maillist_pearson424.org

      Post generated from Pearson424 Forum using Mail2Forum

    • #78545
      petedd
      Participant

      The max prop should have the cone-shaped anode on it also.

      On 5/17/2012 9:14 AM, Peaboy Walters wrote:

      I have two zincs on my shaft and no prop zinc. I think you could put as
      many as you want, but two is probably more than enough, but better than one
      in case one fails.

      -patrick

      —
      s/v Deep Playa | Pearson 424 Hull #152 | http://www.DeepPlaya.com |
      @DeepPlaya |
      W7PEA

      On Thu, May 17, 2012 at 10:12 AM, Jack P Clarkewrote:

      Hi everyone,

      I need some pointers in what anodes to put on the shaft etc. for salt
      water. I am on Lake Ontario and in the next two to three weeks will be
      going out the St. Lawrence, through the Maritimes, New England and points
      south after that.
      I have a Max prop and it has a cone shaped anode on the hub. How many on
      the shaft?

      Thanks

      Jack
      Xanadu
      _______________________________________________
      maillist mailing list

      https://pearson424.org/mailman/listinfo/maillist_pearson424.org

      _______________________________________________
      maillist mailing list

      https://pearson424.org/mailman/listinfo/maillist_pearson424.org

      _______________________________________________
      maillist mailing list

      https://pearson424.org/mailman/listinfo/maillist_pearson424.org

      Post generated from Pearson424 Forum using Mail2Forum

    • #78546
      RichCarter
      Participant

      Jack,
      I use a Godfrey zinc. One zinc will last a full season. I’ve never lost one. The cheaper zincs will spin-off. The godfrey zinc has a brass collar inside it that doesn’t get eaten. This prevents the thing from loosening and spinning off. They are available from most prop shops or online. The list price for a streamlined 1.5″ zinc is $61.65. You should be able to find a discount. This is a lot more expensive than the cheaper zincs but you only need one and they are more reliable. If you use a cheaper zinc, put two on. At that, I don’t know if they will last longer than 6 months.

      http://godfreyboatzincs.com/

      Regards
      Rich


      Original Message


      Post generated from Pearson424 Forum using Mail2Forum

    • #78547
      madsailor
      Moderator

      I do bottom cleaning and zinc replacement for about 40 boats (and
      growing). The Martyr zincs are the cheapest, Campo much better, and I have
      never heard of the Godfrey but I’ll go with Rich’s assessment. Properly
      installed on a boat not suffering from ground currents, the Martyr can last
      for a year.

      Here’s what I’ve found over the years: The best protection for your boat
      if you stay mostly in a marina is a ground isolator. Vessels I work on
      that have one get a year or more from their zincs in marinas known for
      eating them. I’ve never had one of my (ones I own or have placed) spin
      off. They must be put on properly which most divers don’t do. When they
      need replacing there’s nearly no zinc left and I can pry the screws out by
      hand. But never slipped. The shaft has to be absolutely clean – no
      remnants of paint or barnacles. I carry a wire brush and some very
      aggressive scrubby pads just for cleaning the shaft. Some zincs need to be
      tapped into place and re-tightened. So I take a hammer with me as well.

      Sadly, I have found many diving services that are not as particular as they
      should be. That’s the second problem I’ve found with zincs falling off and
      so forth.

      A ground isolator costs about $300 and if you’re handy, you can put one in
      in about an hour. If not, at least you won’t electrocute yourself. Unless
      you have a major ground fault. But I digress. The isolator goes on the
      ground line (typically green) just inside of the power inlet socket, as
      close as possible, even before the first breaker if you have one before the
      main panel (which you would if you’ve rewired your boat to ABYC standards
      recently).

      Now you know as much as I do about zinc installation and longevity.

      Bob

      On Mon, May 21, 2012 at 9:04 AM, wrote:

      Quote:
      Jack,
      I use a Godfrey zinc. One zinc will last a full season. I’ve never lost
      one. The cheaper zincs will spin-off. The godfrey zinc has a brass collar
      inside it that doesn’t get eaten. This prevents the thing from loosening
      and spinning off. They are available from most prop shops or online. The
      list price for a streamlined 1.5″ zinc is $61.65. You should be able to
      find a discount. This is a lot more expensive than the cheaper zincs but
      you only need one and they are more reliable. If you use a cheaper zinc,
      put two on. At that, I don’t know if they will last longer than 6 months.

      http://godfreyboatzincs.com/

      Regards
      Rich


      Original Message


      Post generated from Pearson424 Forum using Mail2Forum

Viewing 7 reply threads
  • You must be logged in to reply to this topic.