corrosion and trim motor

ferdly1

Petty Officer 2nd Class
Joined
Jul 30, 2012
Messages
194
During my years of boating in saltwater I have found a few tricks that help in the never ending battle against corrosion especially when it comes to electronics. One thing I found that seems to work is plasticote. After replacing 2 trim motors in less that 10 years I decided there has to be a better way. Why hasn't the manufacturer come out with a process to keep these motors from deteriorating in saltwater. However, it isnt in their best interest to make a better product and reduce sales, so I guess its up to us backyard mechanics. About 8 years ago, i decided to try a product called plasticote, to increase the longevity of my trim motor. For the test I went to my local auto store and purchased a can of plasticote and put 3 coats of paint on it and let it dry. 8 years later the motor still works well and i havent seen any signs of corrosion. I put this on a new motor. Also be careful when handling motor and installing so you dont scratch it thereby inviting rust. Be sure to only paint portion exposed to water otherwise you might loose your ground. If your motor doesnt work after painting check to see how motor is grounded- mine grounds thru the frame.
 

Boobie Trap

Petty Officer 2nd Class
Joined
Feb 21, 2011
Messages
122
Re: corrosion and trim motor

Another FYI....
Having trouble with the old windlass. Lewmar Horizon 600. When letting the anchor out, the motor ran just fine. However when I started to up anchor, the motor kicked on and then in about 2-3 seconds slows and stops. Check motor, batteries, gears and finally after cleaning the terminals on the switch problem solved. There was just a little corrosion, and mean a little, under the connections. Really surprised at how little can make for a bad connection.
And there it is......my $.02 worth!!
 
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