Re: trailers surge brakes
 

Pablo , It looks as if it was left in the water with the motor down instead of up. From looking at the photo I did not see any zinc. Check to make sure you have zinc on it. Ihave heard that some motors have the zinc in the little tab that sticks down behind the prop. What do you call that thing (trim tab, steering stabilizer, anti torque) I know what it is for but cant think of what its called.

Re: trailers surge brakes
 

Turbo,

I believe it is called an anode. It is in the picture just above the prop. I was told and show by the marina that there is also a "U" shaped one at the very bottom of the engine mount.

Re: trailers surge brakes
 

Yamaha has the U shaped one under the mounting bracket.

There is a stainless grouind wire that connects to the lower part of the motor, you have to make sure that it is clean and mounted tight, so it makes a good connetion. This is what stops the corrision!

But leaving it all the way down in the water is not a good Idea!!!

Re: trailers surge brakes
 

MacoJoe,

Thanks I will check it out this weekend. Hoping to bottom paint as well

Re: trailers surge brakes
 

There have been people that clean and sand lower unit then use marin tex or formula 27 to fill all the holes, sand nice then paint, Lower unit will look brand new!!

If you want to go to that much work??

Re: trailers surge brakes
 

MacoJoe,

So I have 2? One under the cav plate and the other under the mounting bracket? Looking out there on the Web there seems to be a big difference in what I have to pay for them. one sight is 12.00 and another is $25.

Re: trailers surge brakes
 

Are they all shot?? They rot away, if they are not rotted they are fine.

The U shaped one was broke in half before I replaced!

Re: trailers surge brakes
 

No they don't look that bad. Don't really know if they need replacing but if they are only 12$ each then what the heck. plus the comment was made that maybe my lower unit looked a little rough due to zincs (bad)?

Re: trailers surge brakes
 

they not bad if not rotted!!

If anything the wire to the lower unit might not be working??

It need to connect to make the zinc work!

Re: trailers surge brakes
 

I think, while zincs HELP, they do not STOP corrosion....previous owner musta just left motor down all the time while in the salt...