Stern Drive Anode

Grady223 · 03-26-2008, 11:20 AM

Do you need anodes on outboards, too? I have a Merc and a Yamaha. Never noticed if they have them.

Dave R · 03-26-2008, 12:50 PM

Quote:

Originally Posted by Grady223

Do you need anodes on outboards, too? I have a Merc and a Yamaha. Never noticed if they have them.

I would fully expect anodes on your lower unit. Any time there's two or more types of metal in the water, the least noble of metals will dissolve through electrolosis. Anodes are less noble than the rest of the lower unit, so they dissolve first. If you tilt the the thing out of the water whenever it's at rest, the anodes will last years in our water.

Phantom · 03-27-2008, 08:11 AM

Grady -- I would be SHOCKED

if your outboards lower unit did not have them.

On the Merc, look at the under side of the Cavitation plate (above the prop).

03-27-2008, 08:11 AM	#3
Phantom Senior Member Join Date: Jul 2005 Location: Berlin, Ma / Gilford Posts: 1,934 Thanks: 450 Thanked 605 Times in 341 Posts	Grady -- I would be SHOCKED if your outboards lower unit did not have them. On the Merc, look at the under side of the Cavitation plate (above the prop). __________________ *A bad day on the Big Lake (although I've never had one) - Still beats a day at the office!!*

03-26-2008, 11:20 AM	#1
Grady223 Senior Member Join Date: Apr 2004 Location: New Hope, PA & Barndoor Island Posts: 465 Thanks: 93 Thanked 24 Times in 18 Posts	Do you need anodes on outboards, too? I have a Merc and a Yamaha. Never noticed if they have them.