I just bought a Formosa sea tiger
. Included with the sale
was a running, but not installed, penta md2b
. I have literally zero interest in using this engine
for many various reasons, and want to convert to electric propulsion
. As far as I can tell, the md2b
produces a max of 51.08yadayada ft/lbs of thrust at maximum rpms.
I have a 55ft/lbs rated minnkota trolling motor
laying about (I use it as the primary on my little john boat
when taking the kids fishing
on inland lakes).
I want to remove the existing prop/shaft assemblage, seal it up, and install the minnkota in such a way as so the "pod" of the motor
sits pretty much right were the prop & shaft are now, between the rudder
and the trailing end of the keel
. There are adequate clearances.
I am planning (tentatively) to take the motor/prop "pod" off the shaft, drill a vertical hole large enough for the shaft to pass through from the bottom of the transom locker (lazerette?), stick the top end w/ shaft through the hole, and reattach the motor "pod" in its intended place.
This way I avoid cooling
issues, as the motor is intended to be submerged. I also avoid any problems that may arise from the increased drivetrain weight of a direct shaft drive option (utilizing the existing shaft/prop), such as bearing or bushing wear.
The throttle would only be accessible from inside the transom locker, but I can deal with that for now. Later on I could remove the control head
and lengthen wiring
to a new throttle lever (6-way electrical
switch near the wheel
perhaps) without removing any previously done work
Does this idea hit any snags I've not forseen? What does everyone think about this plan? What would be the optimum procedure for sealing the hole where the shaft passes downward (solid fiberglass)?