Anodes

Jonny Mac

Member
Messages
17
Reaction score
26
Location
WV
Hey all,
What size anode discs that are in the stern? I got the ones for the motor, but trying to order replacements for the boat. Thanks!
Edit: 2015 2550 R series
-Mac
 
Last edited:

lakeliving

Well-Known Member
Messages
8,062
Reaction score
6,018
Location
Michigander living In Palm City FL
It is a saltwater life thing!
 

Jonny Mac

Member
Messages
17
Reaction score
26
Location
WV
haha, yes. Mine are pretty worn from the PO and 99% sure they painted over them at some point. BUT, now that I'm home, the diameter is about 3.5"
 

SEMPERFI8387

Moderator
Messages
10,398
Reaction score
4,516
Location
York, Pa

cwag911

Moderator
Messages
5,995
Reaction score
2,109
Location
Denver, NC on beautiful Lake Norman
There's anodes on our Honda.
 

lakeliving

Well-Known Member
Messages
8,062
Reaction score
6,018
Location
Michigander living In Palm City FL
I think freshwater too especially if in a marina with power???? Correct me if I’m wrong ....
I believe that can be a factor but probably not the primary reason for having them. TC had an issue with that and I've been waiting to see what happened with his boat as it was eaten up badly.
 

SEMPERFI8387

Moderator
Messages
10,398
Reaction score
4,516
Location
York, Pa

Jonny Mac

Member
Messages
17
Reaction score
26
Location
WV
On the subject...
I got new anodes, I got a set of each kind (mag, zinc, alum) but the zinc and magnesium came in the same box, together, with no identifiable markings. The only difference I can see is that one is a bit more shiny and the other is ALOT heavier. Anyone have any idea which weighs more: Zinc or Magnesium?
Going super nerdy, the atomic weight for Zinc is about 3 times that of Magnesium, but I wasn't sure if these are actually pure specific metal
 

sunedog

Well-Known Member
Messages
222
Reaction score
383
Pure zinc weighs 7135 kilograms per cubic meter and pure magnesium weighs 1738 kilograms per cubic meter. Your anodes are undoubtedly alloys, but I'm willing to bet the zinc one is heavier.

https://www.simetric.co.uk/si_metals.htm
 

Nautical

Well-Known Member
Messages
260
Reaction score
319
Location
Lake Norman
It's more important to know if they're for your type of water or not. That C-word boat I owned came with salt water anodes. My lake is big on electrolysis because of all of the power plants and docks and after only a month in the water my Volvo outdrive looked like hell but the anode looked fine!
 
Top