Let's Talk Anodes............

Natchamp · Post by **Natchamp** » Tue Jun 19, 2012 10:23 am

Gents,

I need to get some opinions. I need to install anodes on my boat and want to make sure I cover all the bases. I believe I need the following:

Prop Shaft - collar anodes
Rudder - disc anodes
Trim Tab - anodes (same as rudder anodes?)

Am I missing anything? I was thinking about things like the swim platform brackets but can't recall seeing them installed in any pictures anywhere so I don't know if that's a regular thing to do.

What type id best for salt water? I see anodes in Zinc, Aluminum, and Magnesium.

Also, what the heck is this?

They appear to be sacrificial but I'm not sure. They are threaded and screw onto studs that secure the rudder shaft pillow blocks (see pic below).

I don't see these types of anodes that are threaded so I'm not sure if it's just a "nut" or some type of anode.

hmc · Post by **hmc** » Tue Jun 19, 2012 10:49 am

ZINK IS abest for salt . the ruond ones in photo look to be the same as merc cruser out drive that went on th gimble housing

The Dog House · Post by **The Dog House** » Tue Jun 19, 2012 11:39 am

+1 for Zinc. Aluminum and Magnesium are too reactive for salt water.

Stripermann2 · Post by **Stripermann2** » Tue Jun 19, 2012 11:42 am

Here ya go...
My tab zincs are the same (R-3) as my rudder zincs.
http://www.usazincs.com/store/home.php

Mike Kulp · Post by **Mike Kulp** » Tue Jun 19, 2012 12:06 pm

If you have Crusaders with fresh water cooling do not forget the pencil ones in the heat exchanger.

koviak · Post by **koviak** » Tue Jun 19, 2012 4:39 pm

And the pencil zincs in the oil cooler ! But , had a overheating issue last season due to zinc in the cooler doing its job and clogged up my cooler. While at Lankford Bay meet up I removed it and cleaned out the cooler and did not put back in as recommended by the mechanic there. Temps. are good now. Seems I had read somewhere recommending replacing these every 30 days.

gettaway · Post by **gettaway** » Tue Jun 19, 2012 6:08 pm

Prop Shaft - collar anodes
Rudder - disc anodes
Trim Tab - anodes (same as rudder anodes?)

I would think you should have attaching bolts somewhere on the transom to install a large diver dream or similar that your bonding system will run to.
For salt water, use zinc.

prowlersfish · Post by **prowlersfish** » Tue Jun 19, 2012 9:35 pm

koviak wrote:And the pencil zincs in the oil cooler ! But , had a overheating issue last season due to zinc in the cooler doing its job and clogged up my cooler. While at Lankford Bay meet up I removed it and cleaned out the cooler and did not put back in as recommended by the mechanic there. Temps. are good now. Seems I had read somewhere recommending replacing these every 30 days.

I would put the zincs back in and change them more often .