Galvanic corrosion risk?
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=42391
Printed Date: May-29-2024 at 2:38pm
Topic: Galvanic corrosion risk?
Posted By: MourningWood
Subject: Galvanic corrosion risk?
Date Posted: February-09-2018 at 1:27pm
Getting motor ready for '81.
Using new aluminum heads and intake, other weight-saving measures.
Question: Will I have an issue with galvanic corrosion that I need to address?
Fresh-water use only. Thx
-------------
1994 Ski Nautique "Riot"
1964 Dunphy X-55 "One 'N Dun"
'I measured twice, cut three times, and it's still too short!"
|
Replies:
Posted By: FFImarine
Date Posted: February-09-2018 at 10:53pm
|
you could use a quality zinc primer and then paint them if your worried about corrosion.
|
Posted By: TRBenj
Date Posted: February-10-2018 at 12:14am
Posted By: shierh
Date Posted: February-14-2018 at 11:05am
|
No real risk. If you are keeping it in the water and there are electrical faults with other boats in the marina then you would have potential risk. Most of the risk comes from shore power at the dock. Your safety ground could let in stray current from another boat that has electrical issues. Will eat your stuff up. We had wet boats for 15 years and we use to go through zincs every 90 days at some marinas. Problem solved once we put in a galvanic isolator.
|
Posted By: Luchog
Date Posted: February-17-2018 at 6:33pm
I'd be more worried for the different heating rates of having different metals on the engine while running an open cooling system.
For the galvanic current, you could use sacrifical anodes. Depending on the marinas and water you run your boat on, it can chew things pretty fast.
-------------
http://www.correctcraftfan.com/diaries/details.asp?ID=2095" rel="nofollow - 1980 Ski Nautique
Commander 351W
|
|