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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
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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 |
W7PEAOn 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 listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
_______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
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Owners no more...
Thanks Dawn and Patrick! -
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 listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
_______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
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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 listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
_______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
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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 |
W7PEAOn 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 listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
_______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
_______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
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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.Regards
Rich
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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.Regards
Rich
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