And so indeed, if the propellor of your electric trolling motor passes over braided line it can suck that braided line in between to propellor and the main housing. From there that braided fishing line can work its way back into the seal of your electric trolling motor driveshaft. Causing water to leak into the electric trolling motor. That line snake coils its way back into the seal!
And you are unlikely to know the line is in there, as it could be a short piece of line or the prop cut it off and it then got neatly tucked inside that gap.
What will happen then is that your electric trolling motor will run for a little while and then stop. And you will believe it is a dead battery issue?
So how can an electric trolling motor be engineered so that this never happens?
1. If you have the main driveshaft of the trolling motor not extend to where the propellor is but in housing section one of the motor housing. It has a gear on the end of it.
2. A second drive shaft runs parallel to it with a gear on each end in housing section to. (A housing section being a sealed section inside the motor housing.
3. The shaft that extends to the propeller is in housing section 3.
Hence that braided line can never get through housing sections 2 and 3 in order to flood the motor with water and cause it to bog.
Photos of some electric motor coming soon. One with braided line on prop shaft. One showing water that leaked on motor.
And indeed the machine with less moving parts is the best so perhaps this motivates engineers to improve the single drive shaft design to meet stated goal.
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