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Matt Lang
 
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Default Salt Water V. Fresh Water

wrote in message . ..
I live on salt water. If I get a new boat or one that was used in
fresh water, are their any changes that I need to make to it? Is it
true that I am supposed to flush out the drive system after each use
of the boat??

Thanks!!
Don


I would look into the following:

- Yes flush the motor after each use, if the engine has a thermostat
make sure it opens. Follow manufacturers procedure for flushing, make
sure you dont overheat and overrev it.
- rinse the boat and all metal on it after you use it
- rinse the trailer
- frequently lube whatever there is to lube on drive and trailer
(bearings)
- lube the prop shaft
- if it was used in freshwater it may have NO or Magnesium "zincs"
replace these with zinc or aluminum "zincs" (often "zincs" arent made
from zinc ..). You can not put too many zincs on (unless you sink the
boat with it but you can have too little.
- If you have a sterndrive with a SS prop you may want to look into a
cathodic protector like a Mercathode
- make sure the motor/drive has all the zincs it should have and they
are in good shape
- make sure all motor and drive parts are grounded to each other.
there are ground wires and washers depending on your motor. make sure
they are all there and conduct
- dont have shore power attached to the boat without galvanic
protector
- you can nevber rinse too much
- you can measure the galvanic protection (have this done by someone
who knows how to do it) with the boat in the water.
- Merc has a good marine manual about corrosion its about $2 and a
must have for salt waters.

I just once ran my motor without cowling in sal****er and the
corrosion on it was quiet significant...

Matt