Introduction and Corrosion information

[Ryan The WaterDog]

Hello everyone. My name is Ryan, and I got deeply involved in researching internal outboard corrosion after buying a boat that had suffered a serious corrosion failure.

That research eventually led me to develop WaterDog Outboard Savers, so I want to be completely upfront that I own the company. I am not here to spam product links or turn every discussion into a sales pitch.

I have spent the last couple of years studying outboard corrosion, cooling systems, thermostats, sacrificial anodes, internal scale, and doing my own testing along the way. I joined because I enjoy talking about this stuff and hopefully some of what I have learned can help other boat owners avoid the kind of failure that got me started.

The first thing I wanted to share is a laboratory analysis of a sample of the internal scale taken from an outboard engine. One of the things that surprised me was that the sample contained only about 2% calcium and 0.19% sodium. Most of it was made up of corrosion products involving metals from the engine, along with hydroxides and minerals from the water.

I am happy to respect whatever rules the moderators have regarding businesses or vendors. Thanks for having me.

 

[Ekea]

you do the thermostat inserts that reduce the voltage between the block and thermostat, right? or something like that?

 

[Ryan The WaterDog]

you do the thermostat inserts that reduce the voltage between the block and thermostat, right? or something like that?

you do the thermostat inserts that reduce the voltage between the block and thermostat, right? or something like that?

Yes sir that's right, to change the electrochemical potential of the system I designed a sleeve that is made a very reactive metal that goes around the thermostat.

The reason why it's necessary is with a multi-metal system in order to protect one of the metals you have to provide a sacrificial metal with a proper surface area at a proper proximity to the cathode which is the thermostat in our motors.