Propeller Shaft Anodes

carl
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Propeller Shaft Anodes

Postby carl » Wed Feb 08, 2017 12:38 pm

BigM
Last edited by carl on Wed Jul 10, 2019 11:53 am, edited 2 times in total.

barkleydave
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Re: Propeller Shaft Anodes

Postby barkleydave » Wed Feb 08, 2017 1:30 pm

Nothing wrong with putting anode shaft collars on them. The problem is finding the correct type. Marinas normally only have zinc which does nothing. Your Rudder,Keel and tab anodes if properly maintained will be sufficient.

Aluminum is the proper one to use. Mag. is too hot and they will not last long and are too hot for salt or brackish water.

http://www.boatzincs.com/shaft-aluminum.html


safe boating,

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Maestro
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Re: Propeller Shaft Anodes

Postby Maestro » Wed Feb 08, 2017 6:52 pm

I have used the exact anode from Barkley Dave's link for the last 3 years. My engine is isolated from the shaft with a Globe Drivesaver, but the anode is on there for peace of mind.
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bcassedy
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Re: Propeller Shaft Anodes

Postby bcassedy » Wed Feb 08, 2017 8:04 pm

I use the shaft anodes from BoatZincs as well. Always a good idea in my mind.

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carl
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Re: Propeller Shaft Anodes

Postby carl » Thu Feb 09, 2017 4:12 am

BigM
Last edited by carl on Wed Jul 10, 2019 11:52 am, edited 3 times in total.

Fastjeff
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Re: Propeller Shaft Anodes

Postby Fastjeff » Thu Feb 09, 2017 7:14 am

I used Boat Zinc on mine and they needed replacement every two years (in brackish water). That means they were working, right?

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Busia
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Re: Propeller Shaft Anodes

Postby Busia » Thu Feb 09, 2017 2:40 pm

Fastjeff wrote:I used Boat Zinc on mine and they needed replacement every two years (in brackish water). That means they were working, right?

Jeff

That is why they are called "sacrificial" anodes. Better to have them get eaten up or dissolved than the boat.
I put new shaft anodes on every year. It is hard to find the aluminum ones. Different brand names for the aluminum anodes but they are all the same alloy. Best place to go is boatZincs.com You could call them up and tell them you have Marinette, what size it is and they will know exactly what you need, and have the best price.
If you are shopping for Globe Drivesavers, be sure to shop around. Prices vary wildly by who sells them. All made by the same company. Found some companies marking the price up 3 or 4 times the cheaper places. Easy to save $600 to $800 if you shop around.--Ed
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Re: Propeller Shaft Anodes

Postby hoohaah » Fri Feb 28, 2020 2:35 pm

Performance Metals has the proper anodes for our boats good prices great knowledge

215 760 6712 talk to Martin Wigg
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Re: Propeller Shaft Anodes

Postby Bryank97 » Sat Feb 29, 2020 4:56 pm

I bought mine from Marine Parts Source, I chose to go with Magnesium because I am a freshwater ONLY application. Was also looking to raise my hull potential numbers closer to 1000. Was reading about 650 with no signs of corrosion, but thats a little low in my opinion
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Re: Propeller Shaft Anodes

Postby Trowerpower » Tue May 19, 2020 6:39 am

Four years since my last bottom paint job,installed prop shaft anodes at that time. All my other aluminum anodes are fine,just need cleaning up. They have some calcium on them. The prop shaft anodes are at least have gone! So they did their job, installing new ones. The hull is in great shape, pressure washing the hull for new Trilux 33 bottom paint.
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