The housing (blue) on the brushless motor is pulling away from the magnet when the boat is ran. This causes the housing to spin and disconnect the plugs. I am tired of swimming. How can this be remedied?

You need to put a thrust washer between the collet and the motor, this puts the load onto the front of the motor can & takes it off the back of the can.

That's cheaper than replacing the motor.

would the hobby shop where I bought the sv27 have a thrust washer to fit?

Probably not, offshore electric would be your best bet.

i just added another bearing on the motor shaft but it was large enough to fit in the mount hole where the shaft goes through</p>

this is what ya need

http://www.offshoreelectrics.com/pro...?prod=dh-53136

the only difference i see is that the side of the bearing is open so its all half encased

A thrust bearing is meant to be run in compression along the shaft it is mounted on, a normal bearing will run in compression at 90 degrees to the shaft it is mounted on.

+ 1
a normal bearing will not work well for this aplication

its ok, i have ordered some, should be here tomorow with any luck, it goes between the can front a coupler ??

the thrust bearing goes between the motor and the coupler

Yep, the motor cap bearings are good for side to side loading, but poor for transmitting forward thrust. For that, you need a thrust bearing. A bushing between the drive dog and the strut does the same thing, albeit not as efficiently.