Alpha GenII Corrosion

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SteveRay

Petty Officer 1st Class
Joined
Oct 20, 2004
Messages
338
Well needless to say I am a little disappointed after seeing the corrosion and bubbling on my Alpha drive after sitting in fresh water all summer....My anodes were in great shape but I am guessing I didnt have enough protection and the stainless prop didnt help.......I went to boat zincs.com and it is a little confusing.

What do you guys with stainless props in fresh water use?

Looks like I have a winter project of painting my outdrive :mad:
 
Bifflefan

Bifflefan

Commander
Joined
May 27, 2009
Messages
2,933
Re: Alpha GenII Corrosion

Sounds like you didnt have good contact from the anodes to the alum.
 
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SteveRay

Petty Officer 1st Class
Joined
Oct 20, 2004
Messages
338
Re: Alpha GenII Corrosion

bifflefan said:
Sounds like you didnt have good contact from the anodes to the alum.
Click to expand...
I dont think that is the case unless it came from the factory like that....boat has spent its entire life on the trailer thus far....This season was the first in the water.

Don S, From your diagram and what I can see on the gimbal anode it doesnt appear to have Mercathode....I do se a ground wire coming from the gimbal ring to the upper gearcase......How do I check
 
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dubs283

Vice Admiral
Joined
Jul 27, 2005
Messages
5,116
Re: Alpha GenII Corrosion

could also be the ground strap from the inner transom plate not connected to the engine block
 
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dubs283

Vice Admiral
Joined
Jul 27, 2005
Messages
5,116
Re: Alpha GenII Corrosion

the ground strap (black wire) will be on the top port side of the inner transom plate and attach to one of the rear bellhousing studs on the engine
 
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